Journal articles: 'Ultra-Wide Band technology'

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Liu, Chenming. "Ultra Wide Band Technology and Indoor Precise Positioning." SHS Web of Conferences 144 (2022): 02002. http://dx.doi.org/10.1051/shsconf/202214402002.

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UWB technology is a wireless carrier communication technology that uses frequency bandwidth above 1GHz. This essay mainly focuses on the theory of UWB and one of its most important applications, which is indoor positioning. It will explore some possibilities of UWB in the field of precise positioning. Based on the literature, the theory of UWB and the algorithm of positioning will be shown in a relatively simple way. The result shows that Ultra Wide Band (UWB) technology has the advantages of low system complexity, low power spectral density of transmitted signal, and insensitivity to channel fading. The positioning system based on UWB can be used for the real-time location management of personnel, equipment, and vehicles, as well as to view the real-time location and distribution area of the target., such as nursing home elderly positioning monitoring, to prevent the elderly from getting lost, location management of chemical plant operators, security of dangerous areas, location management of vehicles and equipment, etc.

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Chi, X., G. Wu, J. Liu, J. Xu, and Qi Lu. "Review on Ultra Wide Band Indoor Localization." Indonesian Journal of Computing, Engineering and Design (IJoCED) 2, no. 2 (October 1, 2020): 99. http://dx.doi.org/10.35806/ijoced.v2i2.118.

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Ultra-Wide Band (UWB) is an important means of indoor positioning. Carrying out the research of UWB is of great significance to the development of indoor positioning technology. This article gives a review of the application of UWB in indoor positioning. The motivation and development status of UWB are introduced. UWB localization algorithms such as received signal strength indication, time of arrival, time difference of arrival are analyzed one by one. In this paper, the derivations of the algorithm are summarized. Several technical difficulties of UWB technology development and future development of UWB are presented. This paper provides researchers with a clear insight into the UWB indoor positioning system so that they can further develop other advanced techniques.

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Gao, Wei-hua, Li-li Guo, and Zhi-guo Liang. "A novel wireless personal area network technology: Ultra wide band technology." Journal of Marine Science and Application 5, no. 3 (September 2006): 63–69. http://dx.doi.org/10.1007/s11804-006-0011-1.

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Wisiak, Katja, Michel Jakić, and Philipp Hartlieb. "Application of Ultra-Wide Band Sensors in Mining." Sensors 23, no. 1 (December 28, 2022): 300. http://dx.doi.org/10.3390/s23010300.

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Ultra-wideband (UWB) sensors are a radio frequency technology that use wireless communication between devices to precisely determine the position. The most recent applications focus on locating and sensor data collecting on mobile phones, car keys and other similar devices. However, this technology is still not being utilized in the mining sector. To overcome this gap, this perspective offers implementation options and solutions. Additionally, it evaluated the benefits and drawbacks of using ultra-wideband for mining. The measurements provided were made using QORVO two-way ranging sensors, and these were compared to theoretical and existing technological solutions. To ensure the optimal use of UWB sensors, a special emphasis was placed on certain influencing factors, such as ways of locating via UWB and factors affecting measurement accuracies, such as the line of sight, multipath propagation, the effect of shielding and the ideal measurement setup. A conducted experiment showed that the most accurate results are obtained when there is no multipath propagation and the arriving signal travels directly from the transmitter to the receiver.

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Zhang, Feng Shan, and Cai Feng Liang. "Cognitive Impulse Ultra Wide Band Spectrum Sharing Radio and Pulse Shaping." Applied Mechanics and Materials 385-386 (August 2013): 1610–13. http://dx.doi.org/10.4028/www.scientific.net/amm.385-386.1610.

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Both underlay spectrum sharing radios and overlay spectrum sharing radios have their advantages and disadvantages. Ultra wide band (UWB) and cognitive radio (CR) are important underlay and overlay technology respectively used as secondary radio systems. In this paper, a cognitive impulse ultra wide band (CIUWB) spectrum sharing radio technology is presented based on impulse UWB and CR.

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Mok, E., F. Lau, L. Xia, G. Retscher, and H. Tian. "Influential factors for decimetre level positioning using ultra wide band technology." Survey Review 44, no. 324 (January 2012): 37–44. http://dx.doi.org/10.1179/1752270611y.0000000009.

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Mr. Anish Dhabliya. "Ultra Wide Band Pulse Generation Using Advanced Design System Software." International Journal of New Practices in Management and Engineering 2, no. 02 (June 30, 2013): 01–07. http://dx.doi.org/10.17762/ijnpme.v2i02.14.

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In radio spectrum, Ultra Wide Band is a defined as the technology which is used for short range communication with high bandwidth at low energy dimensions. Ultra Wide Band technology find its application in radar imaging, location based services and live tracking. The Objective of this paper is to generate UWB pulse. Here UWB pulse generation is simulated using Advanced Design System software. The operation output pulse are obtained in the interval of 10usec for input pulse train of 10usec ON state and 10usec of OFF state at low inductive values of UWB generation circuit. The oscillations are neglected by connecting high inductive value in UWB pulse generation circuit. The skipped output pulses are obtained for the input pulse with rise and fall time. Short pulse UWB pulse generation is simulated using schottky diode. The short pulse of 0.2usec with oscillations is obtained for the bit sequence short input pulse of UWB pulse generation circuit.

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Liu, Yong, Wenbin Li, Jinrong Zhou, Rui Pan, Huan Zheng, Bing Xiang, and Rui Xu. "Study on the Technology of Ultra-high Sensitive Wide-band Magnetic-feedback Inductive Magnetic Sensor." MATEC Web of Conferences 327 (2020): 01002. http://dx.doi.org/10.1051/matecconf/202032701002.

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It analyses the composition and principle of high-sensitive wide-band magnetic-feedback inductive magnetic sensor to fulfil the demand of high-sensitive wide-band magnetic sensor in geological exploration. It studies main factors to the performance of wide-band magnetic sensor, such as turns of coils, core material features, and amplifier noise, specifies section-wise coil winding, the type and dimension of core material, and designs low-noise high-impedance LF chopping amplifier channel and composite amplifier with HF amplifier channel. The noise of magnetic sensor at 1 Hz is better than 10-4nT/Hz1/2, at 100Hz-1kHz band the noise floor is close to SQUID which can reach 10-6nT/Hz1/2. The magnetic sensor works at wide frequency band (0.0001Hz-10kHz) and ultra-low noise, which can meet the requirements of both AMT and CSAMT.

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Sabah, Anwar, and Malik Jasim Frhan. "A new patch antenna for ultra wide band communication applications." Indonesian Journal of Electrical Engineering and Computer Science 18, no. 2 (May 1, 2020): 848. http://dx.doi.org/10.11591/ijeecs.v18.i2.pp848-855.

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A printed monopole patch Ultra Wide Band (UWB) antenna for use in UWB application is proposed in this paper. The proposed antenna consists of a patch with appropriate dimensions on one side of a dielectric substrate, and a partial ground plane on the other side of the substrate. The techniques that used to enhance the bandwidth are the partial ground plane, feed point position and adjusted feed gap. The substrate that is used in the proposed antenna is Fr4 epoxy, the optimum dimensions of the antenna are 40mm×28mm×1.5mm this antenna designed by HFSS program. The band achieved by the proposed antenna is from 3.6GHz to 15GHz. This antenna is fabricated in the ministry of science and technology Baghdad-Iraq and a good agreement between simulation and measured S11 is achieved.

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Koppanyi, Z., and C. K. Toth. "Indoor Ultra-Wide Band Network Adjustment using Maximum Likelihood Estimation." ISPRS Annals of Photogrammetry, Remote Sensing and Spatial Information Sciences II-1 (November 7, 2014): 31–35. http://dx.doi.org/10.5194/isprsannals-ii-1-31-2014.

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This study is the part of our ongoing research on using ultra-wide band (UWB) technology for navigation at the Ohio State University. Our tests have indicated that the UWB two-way time-of-flight ranges under indoor circumstances follow a Gaussian mixture distribution that may be caused by the incompleteness of the functional model. In this case, to adjust the UWB network from the observed ranges, the maximum likelihood estimation (MLE) may provide a better solution for the node coordinates than the widely-used least squares approach. The prerequisite of the maximum likelihood method is to know the probability density functions. The 30 Hz sampling rate of the UWB sensors enables to estimate these functions between each node from the samples in static positioning mode. In order to prove the MLE hypothesis, an UWB network has been established in a multi-path density environment for test data acquisition. The least squares and maximum likelihood coordinate solutions are determined and compared, and the results indicate that better accuracy can be achieved with maximum likelihood estimation.

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Vishwanath*, M., Habibulla Khan, and Himani Goyal Sharma. "Design and Analysis of Step Impedance Resonator Based UWB Band Pass Filter using MIM Waveguide." International Journal of Recent Technology and Engineering (IJRTE) 8, no. 3 (September 30, 2019): 4319–21. http://dx.doi.org/10.35940/ijrte.c5181.098319.

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In this paper we have designed and analyzed step impedance resonator based ultra wide-band (UWB) band pass filter using plasmonic MIM waveguide. The UWB band pass filter has been designed by introducing a shot-circuited stub to implement the shunt inductance between two quarter wavelength (λ/4) step impedance resonators. There is a strong coupling between the stubs. The plasmonic UWB band pass filter has been designed at E band (1360-nm to1460-nm) optical wavelength. The band width of plasmonic ultra wide-band band pass filter is very effective compared to narrow-band band pass filter. The reflection and transmission characteristics, variation of reflection and transmission coefficents by varying the dimensions of UWB, field distribution of plasmonic UWB has been realized using full wave simulation by using commercially available CST microwave studio software. The UWB band pass filter can further used for the development of photonic integrated circuits (PICs).

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Deacu, Daniela. "Statistical Model for Ultra-Wide Band Radio Channels Onboard Ship." Advanced Materials Research 837 (November 2013): 745–50. http://dx.doi.org/10.4028/www.scientific.net/amr.837.745.

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Modeling of radio wave propagation onboard ship should take into account multipath effects, i.e., reflection and scattering on the ship conductive superstructure. Novel ultra-wide band communication technology consists of series of short pulses carrying information by changing the polarity as 0 or 1 bits are transmitted. Multipath effects actually impact on the interference free time-slots to be provided between carrier pulses. Narrow-band radio channels are presently modeled either deterministic or stochastic. Although accurate, deterministic models are rather complicated and difficult to use when the configuration of the propagation channel changes. Stochastic models are less sensitive with respect to the configuration of the channel if the distribution of the scatterers and their type do not change dramatically. This paper extends the stochastic, narrow-band log-distance model to ultra-wide band channels. The coefficients of the model are calculated from a set of real data measured onboard a maritime ship. The accuracy of our model is then investigated by comparing the real channel response to the calculated one. Finally, we investigate the channel response to a usual pulse waveform, i.e. the first time-derivative of the Gauss function. The figure of merit to be analyzed is the normalized correlation coefficient or fidelity factor. It should be noted that the dispersion of the measuring antennas was compensated by knowing the gain variation as a function of frequency. This study also leads to minimal values for the time slots between pulses.

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Wu, Pengtao. "Comparison between the Ultra-wide Band based indoor positioning technology and other technologies." Journal of Physics: Conference Series 2187, no. 1 (February 1, 2022): 012010. http://dx.doi.org/10.1088/1742-6596/2187/1/012010.

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Abstract In recent decades, there have been many applications of positioning and navigation systems, the most representative of which is GPS (Global Positioning System). This technique is very accurate for outdoor navigation, but it cannot provide reliable positioning data indoors. This paper firstly compares the different indoor positioning technologies and analyses their bottleneck. Then the suitable algorithm of UWB based on indoor positioning technology (IPT) is discussed including Angle of arrival (AoA), Time of arrival (ToA), Time difference of arrival (TDoA), and Received Signal Strength (RSS). Eventually, the paper finds that although UWB-based indoor positioning technology still has many problems such as high deployment equipment costs to be solved, it is suitable for widespread applications due to its special advantages such as strong resistance to multipath effects.

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Hwang, Seokyon. "Ultra-wide band technology experiments for real-time prevention of tower crane collisions." Automation in Construction 22 (March 2012): 545–53. http://dx.doi.org/10.1016/j.autcon.2011.11.015.

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Silvia, Zuin, Calzavara Martina, Sgarbossa Fabio, and Persona Alessandro. "Ultra Wide Band Indoor Positioning System: analysis and testing of an IPS technology." IFAC-PapersOnLine 51, no. 11 (2018): 1488–92. http://dx.doi.org/10.1016/j.ifacol.2018.08.292.

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Ren, Jian, and Jia Yin. "3D-Printed Low-Cost Dielectric-Resonator-Based Ultra-Broadband Microwave Absorber Using Carbon-Loaded Acrylonitrile Butadiene Styrene Polymer." Materials 11, no. 7 (July 20, 2018): 1249. http://dx.doi.org/10.3390/ma11071249.

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In this study, an ultra-broadband dielectric-resonator-based absorber for microwave absorption is numerically and experimentally investigated. The designed absorber is made of the carbon-loaded Acrylonitrile Butadiene Styrene (ABS) polymer and fabricated using the 3D printing technology based on fused deposition modeling with a quite low cost. Profiting from the fundamental dielectric resonator (DR) mode, the higher order DR mode and the grating mode of the dielectric resonator, the absorber shows an absorptivity higher than 90% over the whole ultra-broad operating band from 3.9 to 12 GHz. The relative bandwidth can reach over 100% and cover the whole C-band (4–8 GHz) and X-band (8–12 GHz). Utilizing the numerical simulation, we have discussed the working principle of the absorber in detail. What is more, the absorption performance under different incident angles is also simulated, and the results indicate that the absorber exhibits a high absorptivity at a wide angle of incidence. The advantages of low cost, ultra-broad operating band and a wide-angle feature make the absorber promising in the areas of microwave measurement, stealth technology and energy harvesting.

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Pastukh, Alexander, Evgeny Deviyatkin, Alexandr Savochkin, and Valery Tikhvinskiy. "INTERFERENCE ANALYSIS OF UWB DEVICES TO THE SATELLITE SERVICES IN THE 7240-8240 MHZ FREQUENCY BAND." SYNCHROINFO JOURNAL 8, no. 3 (2022): 2–6. http://dx.doi.org/10.36724/2664-066x-2022-8-3-2-6.

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Ultra-wideband radio technology (UWB), is a wireless access technology that allows exchanging of data over a radio channel between over short distances at very high speed and low power consumption. UWB signals are short pulses the entire energy of which is distributed over a given wide region of the spectrum. With a sufficiently high total power transmitted over the air and with low power consumption and a pulsed nature of data transmission, a high data transmission rate can be obtained. This work has done interference analysis of ultra-wide bandwidth technologies (UWB) operating in the frequency band 7240-8240 MHz to the Earth monitoring and meteorological satellite systems that operate in this band. Taking into account the rapid development of users’ UWB devices in different frequency bands, the study tries to estimate the long-term impact of aggregate interference from UWB devices located around the satellite Earth stations. The study considers two satellite systems as an example of victim receivers. The UWB density assumptions made in the studies are based on the forecasts of CEPT and UWB Alliance.

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Ye, Tingcong, Michael Walsh, Peter Haigh, John Barton, Alan Mathewson, and Brendan O’Flynn. "An Experimental Evaluation of IEEE 802.15.4a Ultra Wide Band Technology for Precision Indoor Ranging." International Journal of Ambient Computing and Intelligence 4, no. 2 (April 2012): 48–63. http://dx.doi.org/10.4018/jaci.2012040104.

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Ultra Wide Band (UWB) wireless transmission has recently been the object of considerable attention in the field of next generation location aware wireless sensor networks (WSNs). This is due to its fine time resolution, energy efficiency and robustness to interference in harsh environments. This paper presents a thorough applied examination of prototype IEEE 802.15.4a impulse UWB transceiver technology to quantify the effect of line of sight (LOS) and non line of sight (NLOS) ranging in real indoor and outdoor environments. The results included draw on an extensive array of experiments that fully characterize the 802.15.4a UWB transceiver technology, its reliability and ranging capabilities for the first time. The goal of this work is to validate the technology as a dependable wireless communication mechanism for the subset of sensor network localization applications where reliability and precision positions are key concerns.

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Maalek, Reza, and Farnaz Sadeghpour. "Accuracy assessment of ultra-wide band technology in locating dynamic resources in indoor scenarios." Automation in Construction 63 (March 2016): 12–26. http://dx.doi.org/10.1016/j.autcon.2015.11.009.

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Li, Hai Yan. "Bit and Power Allocation Algorithm for OFDM UWB Systems." Advanced Materials Research 760-762 (September 2013): 472–77. http://dx.doi.org/10.4028/www.scientific.net/amr.760-762.472.

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Ultra-wide-band (UWB) is a promising short-range indoor wireless communication technology for large communication capacity, high transmission rate, low power consumption, etc. Multi-band orthogonal frequency-division multiplexing ultra-wide-band (MB-OFDM UWB) system can achieve much higher anti-noise capability and flexibility. However, the transmission power of UWB systems is strictly restricted for avoiding the interference with other wireless communication systems existing in the same frequency spectrum range. It is necessary that adequately utilizes channel estimation to allocate bit and power effectively. According to the change of channel gain, UWB systems modify the allocation factor to optimize the performance of systems and reduce power allocation remainder. Simulation shows modified bit-power allocation algorithm can enhance power allocation efficiency. Furthermore, it is found that the power remainder of modified allocation factor algorithm is less influenced by the bit error rate.

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Liu, Haixia, Weitao He, Lixia Li, and Qi Jia. "Theoretical and Experimental Investigations on the Ultra-Low-Frequency Broadband of Quasi-Static Metamaterials." Applied Sciences 12, no. 18 (September 7, 2022): 8981. http://dx.doi.org/10.3390/app12188981.

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This paper proposes an I-shaped radial elastic metamaterial with ultra-low-frequency broadband characteristics and studies the propagation characteristics of elastic waves in their quasi-static state. Through the calculation of the dispersion relationship, the frequency response function, and the eigenmode displacement field, it is found that the ultra-low-frequency wide band gap can be generated in the quasi-static metamaterial. The wide band gap is mainly caused by modal transitions. The equivalent mass–spring model reveals the modal changes of the I-shaped radial elastic metamaterial under the surface constraints. Furthermore, by studying the directional vibration displacement field of the finite period structure, it is demonstrated that the mechanism of the ultra-low-frequency broadband (0<Reduced frequency(Ω)<0.20) is the local resonance mechanism. Subsequently, the influence of the geometric and the material parameters on the location and width of the band gap is explored numerically. Finally, based on the model, through the hammer modal experiment, it is proven that the quasi-static structure yields an ultra-low-frequency stop band of 0.1–1012 Hz. The research conclusions can be applied to mechanical engineering fields such as ultra-low-frequency vibration reduction.

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Lü, Fang Cheng, Lei Zhu, Yun Peng Liu, Qing Zhong Geng, Jun Zhu, Hang Juan Dai, and Xiong Jie Xie. "Wide Frequency Band DC Corona Current Measurement and Analysis of Bundle Conductor Based on UHV Corona Cage." Advanced Materials Research 718-720 (July 2013): 600–604. http://dx.doi.org/10.4028/www.scientific.net/amr.718-720.600.

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A wide frequency band DC corona current measurement system is introduced in this paper. GPS technology is applied to make sure that the voltage and current signal are collected synchronously. The wide band corona current signal is transmitted to the lower computer by the wireless network of 300M/s. The wide frequency band DC corona current waveform was gained in the Ultra High Voltage (UHV) Test Base in Wuhan, which can reflect the high frequency pulses of the corona current, and corona currents of 6 bundle conductor LGJ630-45 in dry and rain (rain rate 20mm/h) conditions are gained. The corona current in the rain condition is much larger than that in the dry condition.

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Babu, P. Raveendra, and Rama Krishna Dasari. "Electromagnetic Band Gap based compact UWB Antenna with Dual Band Notch Response." International Journal of Electrical and Electronics Research 10, no. 4 (December 30, 2022): 1294–98. http://dx.doi.org/10.37391/ijeer.100483.

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In Antenna Technology, Electromagnetic Band Gap (EBG) structures are one of the mostly used structures to improve gain of antenna, suppress surface waves and band notching. In UWB frequency spectrum more number of small frequency bands are exists and these bands cause electromagnetic interference, to reject such bands more number of EBG structures are required. Due to limited monopole antenna's ground plane, it is required to have EBG with small in size and single EBG to reject two or more bands. The simulated results of proposed new C-shaped EBG by placing near the feedline of fork-shape Ultra-Wide Band (UWB) antenna to reject two bands namely Lower Wireless Local Area Network(L-WLAN) band range from 5.15 GHz to 5.35GHz and X-band of satellite downlink communications networks (7.25GHz –7.75GHz) within a UWB antenna's spectrum and EBG occupying less area compared with the reported Conventional Mushroom Type (CMT) EBG, semi-circular EBG, slotted-patch ELV EBG and TVS EBG. Fabrication and measurement results of the newly proposed antenna attain an enormous bandwidth i.e., from 2.8 GHz to 11.5 GHz while eliminating frequency bands between 5.15 GHz to 5.35 GHz (Lower WLAN) & 7.25GHz to 7.75GHz (X-band of satellite downlink).

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Xia, Dunzhu, Yanhong Yao, and Limei Cheng. "Indoor Autonomous Control of a Two-Wheeled Inverted Pendulum Vehicle Using Ultra Wide Band Technology." Sensors 17, no. 6 (June 15, 2017): 1401. http://dx.doi.org/10.3390/s17061401.

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Mucchi, Lorenzo, Sara Jayousi, Alessio Martinelli, Stefano Caputo, Emanuele Intrieri, Giovanni Gigli, Teresa Gracchi, et al. "A Flexible Wireless Sensor Network Based on Ultra-Wide Band Technology for Ground Instability Monitoring." Sensors 18, no. 9 (September 5, 2018): 2948. http://dx.doi.org/10.3390/s18092948.

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An innovative wireless sensor network (WSN) based on Ultra-Wide Band (UWB) technology for 3D accurate superficial monitoring of ground deformations, as landslides and subsidence, is proposed. The system has been designed and developed as part of an European Life+ project, called Wi-GIM (Wireless Sensor Network for Ground Instability Monitoring). The details of the architecture, the localization via wireless technology and data processing protocols are described. The flexibility and accuracy achieved by the UWB two-way ranging technique is analysed and compared with the traditional systems, such as robotic total stations (RTSs) and Ground-based Interferometric Synthetic Aperture Radar (GB-InSAR), highlighting the pros and cons of the UWB solution to detect the surface movements. An extensive field trial campaign allows the validation of the system and the analysis of its sensitivity to different factors (e.g., sensor nodes inter-visibility, effects of the temperature, etc.). The Wi-GIM system represents a promising solution for landslide monitoring and it can be adopted in combination with traditional systems or as an alternative in areas where the available resources are inadequate. The versatility, easy/fast deployment and cost-effectiveness, together with good accuracy, make the Wi-GIM system a possible solution for municipalities that cannot afford expensive/complex systems to monitor potential landslides in their territory.

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Reina, María, Javier García-Rubio, and Sergio J. Ibáñez. "Activity Demands and Speed Profile of Young Female Basketball Players Using Ultra-Wide Band Technology." International Journal of Environmental Research and Public Health 17, no. 5 (February 25, 2020): 1477. http://dx.doi.org/10.3390/ijerph17051477.

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Performance profiles have begun to be identified as extremely useful in order to help coaches individualize training according to the age and gender of athletes. Therefore, the aim of this study was to determine the activity demands and speed profile of U18 female basketball players during competitive matches. Time variables (real and playing time), distance variables (distance performed, distance in speed zones, high intensity distance and distance covered sprinting) and speed variables (number of sprints, sprint duration, maximum speed and average speed) were recorded from forty-eight players belonging to four teams (13 guards, 22 forwards and 13 centers). WIMUPROTM inertial measurement units with ultra-wide band (UWB) indoor-tracking technology recorded six matches during final four in the season 2018/2019. A one factor ANOVA with Cohen’s effect sizes (d) were used to identify the differences between groups (playing position and match day). Distance per minute (123.96 vs 112.67 m), high intensity distance per minute (15.48 vs 14 m), running distance (403.2 vs 541.28 m) and average speed (5.05 vs 5.41 km/h) were significantly higher on day 3 than 1, respectively. About playing position, forwards played more minutes during games, so covered a greater distance, more sprints and high intensity actions than the rest. In spite of fatigue, day 3 showed a greater intensity than day 1, therefore, the last day was the crucial one for the teams in the tournament. Forwards when playing more minutes obtain higher absolute values but not per minute which could mean a lower performance of the team.

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Acampora, Anthony, and Marc Krull. "A new approach to peer-to-peer wireless LANs based on ultra wide band technology." Wireless Networks 14, no. 3 (October 9, 2006): 335–46. http://dx.doi.org/10.1007/s11276-006-9956-x.

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Ding, Hong Wei, and Yong Bao Zhao. "Discussion on the Application of Ultra Wide Band Wireless Communication Technology in the Coal Mine." Advanced Materials Research 1079-1080 (December 2014): 702–6. http://dx.doi.org/10.4028/www.scientific.net/amr.1079-1080.702.

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Coal mine underground information management is a large-scale and complicated management process. The applications of modern management means of professional, industrialization, mechanization and informationization have provided sufficient basis of science and technology to the horizontal underground information management level. This paper has introduced the BS/model system to change the present situation of the existing enterprise staff information management which is not perfect. In this paper, the background and the significance in the coal mine management in ultra wide band wireless communication technology based on information management, put forward the purpose and the main content of the mode, function framework with underground staff information management information system and each module, finally the relevant discussion information system application has been made.

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Maalek, R., and F. Sadeghpour. "Accuracy assessment of Ultra-Wide Band technology in tracking static resources in indoor construction scenarios." Automation in Construction 30 (March 2013): 170–83. http://dx.doi.org/10.1016/j.autcon.2012.10.005.

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Nagaraju, V., R. Rajeswari, L. FranklinTelfer, A. Karunakaran, and B. R. TapasBapu. "Design of miniaturized directional ultra wide band antenna for cancer detection." International Journal of RF Technologies 10, no. 3-4 (December 5, 2019): 105–13. http://dx.doi.org/10.3233/rft-190206.

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Jiang, Shaohua, Miroslaw J. Skibniewski, Yongbo Yuan, Chengshuang Sun, and Yujie Lu. "ULTRA-WIDE BAND APPLICATIONS IN INDUSTRY: A CRITICAL REVIEW / ULTRAPLAČIOS JUOSTOS BANGŲ TAIKYMAS PRAMONĖJE: KRITINĖ APŽVALGA." Journal of Civil Engineering and Management 17, no. 3 (September 20, 2011): 437–44. http://dx.doi.org/10.3846/13923730.2011.596317.

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As a radically distinct wireless communication approach compared to traditional narrow band systems, ULTRA-WIDE BAND (UWB) technology has been applied in various sectors and is gaining in popularity, but there appears to be a lack of systematic summary of the potential of this technology. To provide insights into UWB technology for the uninitiated reader, this paper explores the state-of-the-art research and development of UWB applications in many sectors including the construction industry without concerning the technological details. First this paper presents the key concepts related to UWB technology and a brief history of UWB. Then it summarizes the UWB's technical features which enable its popularity in industry. Finally, application examples of UWB technology in many sectors, including construction, are presented to analyze and highlight the impact on the industry performance. In the near future UWB technology is expected to become a very important component and have far-reaching impact in ubiquitous computing. Santrauka Bevielio ryšio ultraplačios juostos bangų (UWB) technologija, radikaliai besiskirianti nuo tradicinės siauros juostos sistemų, buvo plačiai taikoma įvairiuose sektoriuose ir tampa vis populiaresnė, tačiau akivaizdu, kad vis dar trūksta susistemintos šios technologijos galimybių apžvalgos. Siekiant pateikti įžvalgas apie UWB technologiją, šiame straipsnyje analizuojami dabartiniai UWB technologijos tyrimai ir UWB taikymas įvairiuose sektoriuose, įskaitant statybą, nenagrinėjant technologinių detalių. Pirmiausia šiame straipsnyje pristatomos pagrindinės sąvokos, susijusios su UWB technologija ir UWB technologijos istorine raida. Tada susisteminamos techninės UWB technologijos charakteristikos, kurios lemia jos populiarumą pramonėje. Galiausiai analizuojami UWB technologijos taikymo pavyzdžiai įvairiuose sektoriuose, įskaitant statybą, atkreipiant dėmesį į jų poveikį pramonės veiklai. Netolimoje ateityje UWB technologija turėtų tapti labai svarbi ir turėti ilgalaikį poveikį visuotinei kompiuterizacijai.

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Seethur, Rashmi, Siva Yellampalli, and Shreedhar H. K. "Design of Common Gate Current-Reuse Noise Cancellation UWB Low Noise Amplifier in 90nm CMOS." International Journal of Electronics, Communications, and Measurement Engineering 11, no. 1 (January 1, 2022): 1–14. http://dx.doi.org/10.4018/ijecme.312257.

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In this paper, an ultra-wide band (UWB) low noise amplifier (LNA) is implemented by using 90nm RF CMOS technology. The designed LNA achieves high flat band gain (S21) and low noise figure (NF) in the frequency of interest. The proposed LNA operates in the frequency range of 3GHz to 8GHz. In this work, wide band matching is achieved by designing common gate configuration at the input stage. The current reuse and noise cancellation techniques are introduced to improve flat band gain and minimize both noise figure and power consumption. The noise figure is improved by cancelling dominant noise sources with additional hardware. The proposed LNA attains flat band gain of 26.5dB and input matching less than -12dB for entire UWB band. This work achieves noise figure of 2.1dB to 2.59dB in frequency band of interest. Additionally, power consumption of the circuit is 20mW at 1.8V supply voltage.

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Sun, Yunlong, Lianwu Guan, Zhanyuan Chang, Chuanjiang Li, and Yanbin Gao. "Design of a Low-Cost Indoor Navigation System for Food Delivery Robot Based on Multi-Sensor Information Fusion." Sensors 19, no. 22 (November 15, 2019): 4980. http://dx.doi.org/10.3390/s19224980.

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As the restaurant industry is facing labor shortage issues, the use of meal delivery robots instead of waiters/waitresses not only allows the customers to experience the impact of robot technology but also benefits the restaurant business financially by reducing labor costs. Most existing meal delivery robots employ magnetic navigation technologies, which require magnetic strip installation and changes to the restaurant decor. Once the moving path is changed, the magnetic strips need to be re-laid. This study proposes multisource information fusion, i.e., the fusion of ultra-wide band positioning technology with an odometer and a low-cost gyroscope accelerometer, to achieve the positioning of a non-rail meal delivery robot with navigation. By using a low-cost electronic compass and gyroscope accelerometer, the delivery robot can move along a fixed orbit in a flexible and cost-effective manner with steering control. Ultra-wide band (UWB) and track estimation algorithm are combined by extended Kalman filter (EKF), and the positioning error after fusion is about 15 cm, which is accepted by restaurants. In summary, the proposed approach has some potential for commercial applications.

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ISSA, DALENDA BEN, ABDENNACEUR KACHOURI, and MOUNIR SAMET. "NEW CONCEPT OF 3.2–4.8 GHz IMPULSE GENERATOR FOR UWB TRANSMITTER." Journal of Circuits, Systems and Computers 20, no. 02 (April 2011): 313–27. http://dx.doi.org/10.1142/s021812661100727x.

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A new design of Ultra-Wide band (UWB) generator is described in this paper. The UWB impulse generator circuit is the most essential block in a mono-band UWB transmitter. The proposed ultra wide band impulse generator circuit utilizes the performances of the CMOS technology effectively, it is composed of a voltage controlled oscillator (VCO), and a rectangular pulse generator (RPG) and mixer. The RPG circuit consists of a frequency divider 1/128 circuit, time delay, N-inverters and AND gate function. The impulse UWB generator is based on the rectangular pulse modulated with the aim of generating the UWB impulse signal. This proposed circuit generates an output signal which is defined by the bandwidth of 1.6 GHz at centered frequency of 4 GHz and the limited Power Spectral Density (PSD) is −41.47 dBm/MHz. The peak-to-peak amplitude of the UWB impulse signal is 528 mV, the output impulse width of 2 ns and the impulse repetition period (PRP) is 32 ns. The power consumption is about 12.5 mW at 2.5 V voltage supply.

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Wei, Zi Hui, Zheng He Feng, Zhi Feng Wang, and Duan Bo Cai. "Precise Ranging Technology Application Research Based on IEEE802.15.4a." Applied Mechanics and Materials 631-632 (September 2014): 558–62. http://dx.doi.org/10.4028/www.scientific.net/amm.631-632.558.

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To solve the poor location accuracy of wireless sensor networks using Received Signal Strength Indication (RSSI) ranging. Time Of Flight (TOF) ranging is used to ensure the accuracy based on two optional physical layer of Impulse Radio-Ultra Wide-Band (IR-UWB) and Chirp Spread Spectrum (CSS) in IEEE802.15.4a. In this paper, we designed ranging module utilizing CSS and UWB. In the Line Of Sight (LOS) and None Line Of Sight (NLOS) environments ranging accuracy test is implemented, the test results show that the IR-UWB ranging technology can achieve higher ranging accuracy and better multipath resistance compared to CSS.

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ODAGAWA, HIROYUKI, and KAZUHIKO YAMANOUCHI. "SAW DEVICE BEYOND 5 GHz." International Journal of High Speed Electronics and Systems 10, no. 04 (December 2000): 1111–42. http://dx.doi.org/10.1142/s0129156400000726.

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Here we describe recent high frequency SAW technology based on ultra-fine fabrication techniques using electron beam (EB) exposure direct writing and low-loss wide-band filter applications beyond 5 GHz. We especially consider the propagation property of SAWs in the 10 GHz range, which is important for low-loss characteristics, the fabrication technology, and some examples of low-loss filters using unidirectional transducers and ladder type SAW filters.

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Sakalas, Mantas, Niko Joram, and Frank Ellinger. "A 1.5–40 GHz frequency modulated continuous wave radar receiver front-end." International Journal of Microwave and Wireless Technologies 13, no. 6 (February 18, 2021): 532–42. http://dx.doi.org/10.1017/s1759078721000118.

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AbstractThis study presents an ultra-wideband receiver front-end, designed for a reconfigurable frequency modulated continuous wave radar in a 130 nm SiGe BiCMOS technology. A variety of innovative circuit components and design techniques were employed to achieve the ultra-wide bandwidth, low noise figure (NF), good linearity, and circuit ruggedness to high input power levels. The designed front-end is capable of achieving 1.5–40 GHz bandwidth, 30 dB conversion gain, a double sideband NF of 6–10.7 dB, input return loss better than 7.5 dB and an input referred 1 dB compression point of −23 dBm. The front-end withstands continuous wave power levels of at least 25 and 20 dBm at low band and high band inputs respectively. At 3 V supply voltage, the DC power consumption amounts to 302 mW when the low band is active and 352 mW for the high band case, whereas the total IC size is $3.08\, {\rm nm{^2}}$.

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Platt, Duncan, Lars Pettersson, Darius Jakonis, Michael Salter, and Joacim Haglund. "Integrated 79 GHz UWB automotive radar front-end based on Hi-Mission MCM-D silicon platform." International Journal of Microwave and Wireless Technologies 2, no. 3-4 (July 7, 2010): 325–32. http://dx.doi.org/10.1017/s1759078710000462.

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A highly integrated silicon platform (Hi-Mission) for high frequency applications is introduced. This platform utilizes heterogeneous Multi-Chip Module-Deposited (MCM-D) technology with integrated passive devices together with silicon and GaAs Monolithic Microwave Integrated Circuit (MMIC) technology developed for the automotive Ultra Wide Band (UWB) radar (short-range radar) frequency band from 77 to 81 GHz. Developments are described in the area of MCM-D process development, MMIC, integrated phased array antenna, module design, and assembly process development. The demonstrator is composed of two test vehicles designed for conducted and radiated measurements, respectively. Test results are presented at the component and module level.

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Albaidhani, Abbas, and Ahlam Alsudani. "Anchor selection by geometric dilution of precision for an indoor positioning system using ultra‐wide band technology." IET Wireless Sensor Systems 11, no. 1 (December 15, 2020): 22–31. http://dx.doi.org/10.1049/wss2.12006.

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Bitra, S. K., and S. Miriyala. "An Ultra-Wideband Band Pass Filter using Metal Insulator Metal Waveguide for Nanoscale Applications." Engineering, Technology & Applied Science Research 11, no. 3 (June 9, 2021): 7247–50. http://dx.doi.org/10.48084/etasr.4194.

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A T-stub Square Ring Resonator (SRR) based Ultra-Wide Band (UWB) Band Pass Filter (BPF) is studied and investigated in this paper. The proposed filter is based on coupled feed line connected to the T-stub SRR. Ultra-wideband characteristics can be realized by adjusting the T-stub lengths and coupling the gaps between both sides of waveguides and SRR. The characteristics of the T-stub SRR show that the miniaturized UWB BPF can be operated at THz frequencies. The proposed UWB filter is simulated and analyzed using the Finite Differential Time Domain (FDTD) solver-based Computer Simulation Technology (CST) studio suite. The resonance conditions are explained and the transmission performance of the filter agrees with the simulated and theoretical calculations. The proposed filter is best suitable for Electronic-Plasmonic Integrated Circuits (EPICs).

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Wouters, P. A. A. F., P. C. T. Van Der Laan, and E. F. Steennis. "Inductive ultra-wide band detection and location of partial discharges in high-voltage cables." European Transactions on Electrical Power 4, no. 3 (September 6, 2007): 223–29. http://dx.doi.org/10.1002/etep.4450040307.

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Zhang, Chunping. "An Improved Connection Method for Multi-Core SoC." International Journal of Advanced Pervasive and Ubiquitous Computing 4, no. 1 (January 2012): 35–48. http://dx.doi.org/10.4018/japuc.2012010105.

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With rapid development of multi-core processor, the communication becomes a bottleneck increasingly. Traditional electronic connections face a serious complexity restriction. The network on chip has been a prevalent solution in the present. However using the recent technology (ultra-wide band interconnection) technology, the over-all performance including delay and throughput can achieve a new level in multi-core SOC. This paper will introduce a new solution designed for UWB-I based SOC. This solution includes multi-channeling, topology design and routing etc.

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Fan, Chao, Yahua Ran, and Liqun Ye. "Ultra wideband CMOS digital T-type attenuator with low phase errors." Journal of Semiconductors 43, no. 3 (March 1, 2022): 032401. http://dx.doi.org/10.1088/1674-4926/43/3/032401.

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Abstract A proposed inductive-phase-compensation ultra wideband CMOS digital T-type attenuator design based on an analysis of minimising phase errors is presented in this letter. In a standard CMOS technology, the proposed attenuator is analytically demonstrated to have low phase errors due to the inductive-phase-compensation network. A design equation is inferred and a wide-band 4dB attenuation bit digital attenuator with low phase errors is designed as a test vehicle for the proposed approach.

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Yuan, Xiaoming, Yueqi Bi, Mingrui Hao, Qiang Ji, Zhigeng Liu, and Jiusheng Bao. "Research on Location Estimation for Coal Tunnel Vehicle Based on Ultra-Wide Band Equipment." Energies 15, no. 22 (November 15, 2022): 8524. http://dx.doi.org/10.3390/en15228524.

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Because the road surfaces of the underground roadways in coal mines are slippery, uneven, with dust and water mist, and the noise and light illumination effects are significant, global positioning system (GPS) signals cannot be received, which seriously affects the ability of the odometer, optical camera and ultrasonic camera to collect data. Therefore, the underground positioning of coal mines is a difficult issue that restricts the intellectualization of underground transportation, especially for automatic robots and automatic driving vehicles. Ultra-wide band (UWB) positioning technology has low power consumption, high performance and good positioning effects in non-visual environments. It is widely used in coal mine underground equipment positioning and information transmission. In view of the above problems, this research uses the WLR-5A mining unmanned wheeled chassis experimental platform; uses two UWB receivers to infer the position and yaw information of the vehicle in the underground roadway through the method of differential mapping; and tests the vehicle on the double shift line and quarter turn line in the GAZEBO simulation environment and on the ground simulation roadway to simulate the vehicle meeting conditions and quarter turning conditions in the underground roadway. The positioning ability of the method in these two cases is tested. The simulation and test results show that the vehicle position and attitude information deduced by two UWB receivers through the differential mapping method can basically meet the requirements of underground environments when the vehicle is traveling at low speeds.

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Ghazali, Mohd Ifwat Mohd, and Premjeet Chahal. "Ultra-Wideband High Gain Vivaldi Antennas Using Additive Manufacturing." International Symposium on Microelectronics 2018, no. 1 (October 1, 2018): 000754–59. http://dx.doi.org/10.4071/2380-4505-2018.1.000754.

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Abstract In this paper, a low-cost fabrication technique using additive manufacturing (3D printing) is demonstrated for the fabrication of ultra-wide band (UWB) Vivaldi antennas. In communications, UWB antennas are required that have high gain and wide bandwidth (3.1 GHz to 10.6 GHz) enabling high-data rates and efficient use of frequency spectrum. 3D printing has evolved into an important technology that allows rapid and simple fabrication method for printing antennas, and other components. Two different Vivaldi antennas designs (i) Vivaldi with a slot line, and (ii) Corrugated Vivaldi are presented. The fabricated antennas have a wide bandwidth of 14 GHz and a high gain of 10 dBi. For example, the corrugated antenna exploits the capability of 3D printing to incorporate slots in the design that aids in low frequency matching with increased gain.

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Abdulhamid, Mohanad F., and Onyango Ben Sewe. "Performance of UWB-WBAN System Over Awgn Channel." Technological Engineering 15, no. 1 (October 1, 2018): 20–25. http://dx.doi.org/10.1515/teen-2018-0004.

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Abstract The major constraints in the design of Wireless Body Area Network(WBAN) can be attributed to the battery autonomy, need for high data rate services and low interference from the devices operating within the industrial, scientific and medical (ISM) bands. To meet the demand for high data rate services and low power spectral density to avoid ISM band interference, an ultra-wide band(UWB) system based technology has been proposed. This paper focuses on the design and demonstration of an UWB modem to be used in the WBAN applications and the evaluation of its performance in a near-real world scenarios affected by additive white Gaussian noise(AWGN) interference. The modem is tested with different values of signal to noise ratio(SNR). Results show that the performance of the modem degrades as the value of SNR decreases.

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Liu, Li, Yangguang Liu, Xiao-Zhi Gao, and Xiaomin Zhang. "Flexible Ultra-Wide Electro-Optic Frequency Combs for a High-Capacity Tunable 5G+ Millimeter-Wave Frequency Synthesizer." Applied Sciences 11, no. 22 (November 14, 2021): 10742. http://dx.doi.org/10.3390/app112210742.

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This paper presents a new scheme of a cost-effective tunable millimeter-wave (MMW) frequency synthesizer based on an ultra-wideband electro-optic frequency comb. The architecture for the quasi-tunable millimeter-wave frequency synthesizer mainly consists of a compact ultra-wide flat electro-optic frequency comb and a multi-tone frequency generator, which only includes a quantum dot mode-locked laser, a LiNbO3 dual-driving Mach–Zehnder modulator (DD-MZM) and Uni-traveling-carrier photodiode (UTC-PD). MMW signals generated with a quasi-tunable frequency are experimentally demonstrated. The difference in power is obtained for the different frequencies. The linewidth of the quasi-tunable frequency signals is less than 273 Hz. In addition, the single side band (SSB) phase noise of the 25, 37.5, 50 and 75 GHz is measured as −115, −106, −102 and −95 dBc/Hz at an offset of 1 kHz, respectively. The proposed frequency synthesizer has ultra-low phase noise, quasi-tunable frequency and simple structure. The research results of the frequency synthesizer are applied for 5G+ transmission with radio wave working at K-band and V-band. The flexible, compact and robust MMW frequency synthesizer is suitable for the future of ultra-high capacity 5G+ communication.

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Abdullah, Laith Wajeeh, Adheed H. Saloomi, and Ali Khalid Jassim. "A single port frequency reconfigurable antenna for underlay/interweave cognitive radio." Indonesian Journal of Electrical Engineering and Computer Science 26, no. 2 (May 1, 2022): 859. http://dx.doi.org/10.11591/ijeecs.v26.i2.pp859-868.

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A frequency reconfigurable antenna is presented in this paper as a novel single port system gathering the functionalities of both underlay and interweave cognitive radio. This 25×30×0.8 mm3 system involves a wide slot antenna to cover the ultra wide band (UWB) range with resonating stubs that are used to prohibit/work-only-in specific bands within the UWB frequencies. Here, six positive intrinsic negative (PIN) diodes are used to decide the active sections of the antenna that leads to select its operation as UWB/filtering/multiband antenna. Diodes' configuration results in eight useful operation modes that include a scanning mode, four single band-notch modes and three dual band communication modes. The scanning mode covers the entire UWB range while one of the bands allocated for WiMax, Cband, WLAN or Xband is to be excluded in each of the band-notch modes. On the other hand, each communaication mode is able to work in one of the ranges that cover WiMax/Cband, Cband/WLAN or Xband/international telecommunication union (ITU). S11, realized gain, voltage standing wave ratio (VSWR) outcomes of this design that is simulated by computer simulation technology (CST) v.10 all confirms the proposed system's ability to work in the intended modes. Its novelity to work as interweave/underlay cognitive radio system, highly candidates this design to address many of the UWB communication issues related interference and multiband operation

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Smith, Tim, Bill Rhyne, and Christopher Hatfield. "Ultra wide-band, low Loss RF substrate with high-density DC routing supporting 5G/6G flip-chip RFICs." International Symposium on Microelectronics 2021, no. 1 (October 1, 2021): 000201–6. http://dx.doi.org/10.4071/1085-8024-2021.1.000201.

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Abstract This paper presents the development of a substrate/interposer technology that is capable of supporting DC signal line routing down to <1mil trace and space densities, but also supports wideband, high-frequency and industry leading low loss RF routing from to beyond 175GHz. Building off of the proven performance and reliability of the PolyStrata® technology enabled air-coax routing, this paper discusses the development and addition of a redistribution technology that enables multilayer, high density DC signal routing at any point during the PolyStrata® process. This enhances the Polystrata® offering to a truly integrated substrate manufacturing process supporting high density interconnect requirement of flip-chip RF ICs as well as low loss high performance RF routing. The paper describes the design and fabrication of a demonstration part designed to accept a D-Band Flip-Chip RFIC. The chip side interconnects are 50um diameter copper pillar with solder cap, at 100um pitch with over 200 interconnects on a die. Multiple connections were required from 10Ghz to 175GHz as well has 30+ DC signal lines. The design can support this level of interconnect density and act as an interposer for next level interconnect to a printed circuit board. DC lines were routed out to a 400um pitch while RF interconnects can support transitions to micro-strip or strip-line PCB routing technology or waveguide, for easy and low loss interconnect to the next level system. An added benefit of being integrated into the PolyStrata® process is that high-performance passive components can be monolithically integrated into the interposer, and the demonstration vehicle implements a mmWave pass-band filter as well.

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Jahan, MST Ishrat, Mohammad Rashed Iqbal Faruque, Md Bellal Hossain, and Sabirin Abdullah. "An Ultra-Thin, Triple-Band, Incident Angle-Insensitive Perfect Metamaterial Absorber." Materials 16, no. 4 (February 15, 2023): 1623. http://dx.doi.org/10.3390/ma16041623.

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We created an ultra-thin, triple-band incident angle-insensitive perfect metamaterial absorber (MMA) with a metallic patch and a continuous metal ground isolated by a central dielectric substrate. The top metallic patch, placed across the edges of the 0.58 mm thickness Rogers RO4003C (lossy) substrate, forms the bulk of the projected absorber’s ultra-thin layer. Nonetheless, absorption is exceedingly strong, covering C-band, X-band and K-band and reaching levels of 97.8%, 99.9%, and 99.9%, respectively, under normal and even oblique (0° to 45°) incident conditions. In chosen ranges of frequency of 6.24, 10.608, and 18.624 GHz for both TM and TE mode, the displayed Q-factors were 62.4, 17.68, and 26.61, respectively. We correspondingly calculated the RAB (relative absorption bandwidth) to evaluate absorption performance. An equivalent circuit proved its performance capabilities, indicating that it would produce a high-quality MMA from ADS software. Furthermore, the absorber’s performance has been verified in free space on a sample being tested using a different array of unit cells. Moreover, the proposed structures with HFSS simulators to display the MMA’s absolute absorption at each absorption peak are somewhat inconsistent with the results of the CST simulator. Because of its superior performance, the ultra-thin absorber is suited for a wide range of applications, including satellite applications such as radar systems, stealth technology, imaging, and electromagnetic interference reduction.

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Journal articles on the topic 'Ultra-Wide Band technology'

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