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Journal articles on the topic 'Narrowband'

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Author: Grafiati

Published: 4 June 2021

Last updated: 1 February 2022

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1

Rodi, R. I. M., M. N. Osman, M. K. A. Rahim, M. Jusoh, T. Sabapathy, A. Abdullah Al-Hadi, and P. J. Soh. "Narrowband to Narrowband Frequency Tunable Slotted Dipole Antenna." Journal of Physics: Conference Series 1755, no. 1 (February 1, 2021): 012036. http://dx.doi.org/10.1088/1742-6596/1755/1/012036.

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2

Southwell, William H. "Narrowband angle filter." Applied Optics 59, no. 5 (November 15, 2019): A1. http://dx.doi.org/10.1364/ao.59.0000a1.

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3

Cameron, H., and R. Dawe. "Narrowband UVB phototherapy." BMJ 338, jun02 1 (June 3, 2009): b2213. http://dx.doi.org/10.1136/bmj.b2213.

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4

Kim, Sang-Myeong, Michael J. Brennan, and Gustavo L. C. M. Abreu. "Narrowband feedback for narrowband control of resonant and non-resonant vibration." Mechanical Systems and Signal Processing 76-77 (August 2016): 47–57. http://dx.doi.org/10.1016/j.ymssp.2016.01.022.

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5

Liao, Yan-Lin, and Yan Zhao. "Near-infrared TM-polarization ultra-narrowband absorber with dielectric metamaterials." Modern Physics Letters B 33, no. 18 (June 26, 2019): 1950201. http://dx.doi.org/10.1142/s0217984919502014.

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Ultra-narrowband light absorption is desired for many applications. A near-infrared TM-polarization (magnetic field is parallel to grating grooves) ultra-narrowband absorber with dielectric metamaterials has been reported theoretically in this paper. The simulation results show that we can achieve an ultra-narrowband absorption at the incident wavelength of [Formula: see text] with the absorption bandwidth less than 0.9 nm and the absorption rate more than 0.99 for TM polarization. At the same time, we find that the high absorption rate can only remain up to [Formula: see text], which means our absorber has high directivity. In addition, the field distribution at the resonance wavelength shows that the ultra-narrowband absorption in our absorber has originated from magnetic resonance effect. Our near-infrared TM-polarization ultra-narrowband absorber is a good candidate for laser stealth.

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6

You, Young-Hwan. "Reduced Complexity Detection of Narrowband Secondary Synchronization Signal for NB-IoT Communication Systems." Symmetry 12, no. 8 (August 11, 2020): 1342. http://dx.doi.org/10.3390/sym12081342.

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Narrowband Internet of Things is one of the most promising technologies to support low cost, massive connection, deep coverage, and low power consumption. In this paper, a computationally efficient narrowband secondary synchronization signal detection method is proposed in the narrowband Internet of Things system. By decoupling the detection of complementary sequence and Zadoff–Chu sequence that make up the synchronization signal sequence, the search space of narrowband secondary synchronization signal hypotheses is reduced. Such a design strategy along with the use of the symmetric property of synchronization signals allows reduced-complexity synchronization signal detection in the narrowband Internet of Things system. Both theoretical and simulation results are provided to verify the usefulness of the proposed detector. It is shown via simulation results that the complexity of the proposed detection method is significantly reduced while producing some performance degradation, compared to the conventional detection method.

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7

Liao, Yu Yu, Ke Xin Jia, Zi Shu He, and Song Feng Deng. "Narrowband Emitter Identification by Exploiting Gaussian Mixture Model." Applied Mechanics and Materials 65 (June 2011): 503–8. http://dx.doi.org/10.4028/www.scientific.net/amm.65.503.

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Narrowband emitter identification is used to correctly identify unknown narrowband emitters from the results of direction finding (DF). In this paper, we modeled the set of azimuth angles by a mixture of Gaussian densities, and divided narrowband emitter identification into two different stages. In the first stage, a competitive stop expectation-maximization (CSEM) algorithm was developed, which was based on Shapiro-Wilk test and minimum description length variant (MDL2) criterion. The CSEM only employed the estimated azimuth angles at all the signal-occupied frequency bins as feature parameters, while the frequency information implied in each cluster was not exploited sufficiently. So based on the implied frequency information, a postprocessing algorithm was introduced in the second stage. The experimental results show that the CSEM algorithm is more robust, and it has an increased capability to find the underlying model while maintaining a low execution time. By adopting CSEM and postprocessing algorithm in narrowband emitter identification, we are able to identify narrowband emitters with high correctness.

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8

Lu, Jia, Xiaoxing Zhang, and Hao Xiong. "A New Method for Suppressing Periodic Narrowband Interference Based on the Chaotic van der Pol Oscillator." International Journal of Bifurcation and Chaos 25, no. 09 (August 2015): 1550120. http://dx.doi.org/10.1142/s0218127415501205.

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The chaotic van der Pol oscillator is a powerful tool for detecting defects in electric systems by using online partial discharge (PD) monitoring. This paper focuses on realizing weak PD signal detection in the strong periodic narrowband interference by using high sensitivity to the periodic narrowband interference signals and immunity to white noise and PD signals of chaotic systems. A new approach to removing the periodic narrowband interference by using a van der Pol chaotic oscillator is described by analyzing the motion characteristic of the chaotic oscillator on the basis of the van der Pol equation. Furthermore, the Floquet index for measuring the amplitude of periodic narrowband signals is redefined. The denoising signal processed by the chaotic van der Pol oscillators is further processed by wavelet analysis. Finally, the denoising results verify that the periodic narrowband and white noise interference can be removed efficiently by combining the theory of the chaotic van der Pol oscillator and wavelet analysis.

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9

Liao, Yan-Lin, and Yan Zhao. "Ultra-narrowband mid-infrared absorber based on Mie resonance in dielectric metamaterials." Canadian Journal of Physics 98, no. 5 (May 2020): 484–87. http://dx.doi.org/10.1139/cjp-2019-0336.

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Ultra-narrowband absorbers can be applied in many applications. We propose a mid-infrared ultra-narrowband absorber with TM polarization (magnetic field is parallel to grating grooves) based on dielectric metamaterials in this paper. The simulation results show that the absorption rate larger than 0.99 can be achieved at the resonance wavelength, and the absorption bandwidth is less than 10 nm. The simulated field distribution shows that the ultra-narrowband absorption in this absorber originates from Mie resonance. In addition, the absorber preserves high absorption rates up to 4° which means that our absorber has high directivity. Our results show that the ultra-narrowband absorbers can be applied as a thermal emitter.

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10

Hongfei Jiao, 焦宏飞, 程鑫彬 Xinbin Cheng, 丁涛 Tao Ding, 鲍刚华 Ganghua Bao, 王孝东 Xiaodong Wang, 贺鹏飞 Pengfei He, and 吴永刚 Yonggang Wu. "Narrowband multi-channel filters." Chinese Optics Letters 8, S1 (2010): 192–95. http://dx.doi.org/10.3788/col201008s1.0192.

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11

Dahl, Jason F., and Craig C. Smith. "Better narrowband spectral measurements." Mechanical Systems and Signal Processing 21, no. 6 (August 2007): 2474–95. http://dx.doi.org/10.1016/j.ymssp.2007.01.009.

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12

Lin, Qianqian, Ardalan Armin, Paul L. Burn, and Paul Meredith. "Filterless narrowband visible photodetectors." Nature Photonics 9, no. 10 (September 14, 2015): 687–94. http://dx.doi.org/10.1038/nphoton.2015.175.

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13

Zatman, M. "How narrow is narrowband?" IEE Proceedings - Radar, Sonar and Navigation 145, no. 2 (1998): 85. http://dx.doi.org/10.1049/ip-rsn:19981670.

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14

Brown, Stacey L., Robert J. Dooling, and Marjorie R. Leek. "Narrowband masking in birds." Journal of the Acoustical Society of America 111, no. 5 (2002): 2392. http://dx.doi.org/10.1121/1.4778130.

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15

Feig, Ephraim, and Fred Greenleaf. "Narrowband chemical-shift imaging." Applied Optics 24, no. 23 (December 1, 1985): 3977. http://dx.doi.org/10.1364/ao.24.003977.

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16

Ishikawa, H. "Evolving from narrowband (ISDN)." IEEE Communications Magazine 30, no. 8 (August 1992): 32–36. http://dx.doi.org/10.1109/35.149614.

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17

Mckinney, R. S., and T. H. Gordon. "ATM for narrowband services." IEEE Communications Magazine 32, no. 4 (April 1994): 64–72. http://dx.doi.org/10.1109/35.275337.

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18

Goodwill, P. W., G. C. Scott, P. P. Stang, and S. M. Conolly. "Narrowband Magnetic Particle Imaging." IEEE Transactions on Medical Imaging 28, no. 8 (August 2009): 1231–37. http://dx.doi.org/10.1109/tmi.2009.2013849.

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19

Ragdale, C. M., D. Reid, D. J. Robbins, J. Buus, and I. Bennion. "Narrowband fiber grating filters." IEEE Journal on Selected Areas in Communications 8, no. 6 (1990): 1146–50. http://dx.doi.org/10.1109/49.57820.

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20

Qin, T., H. Zhang, and X. Zhang. "Criterion for narrowband beamforming." Electronics Letters 40, no. 14 (2004): 846. http://dx.doi.org/10.1049/el:20040577.

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21

Chen, Fa Tang, Lu Gang Wang, and Dan Wang. "Under the Uniform Linear Array Related Research of Broadband Signal DOA Estimation Algorithm." Applied Mechanics and Materials 513-517 (February 2014): 2698–701. http://dx.doi.org/10.4028/www.scientific.net/amm.513-517.2698.

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In order to solve the positioning problem of radar and communications, broadband signal and improve the positioning accuracy, this paper proposes a method of DOA estimation under uniform linear array, the method based on fast Fourier transform, using narrowband MUSIC algorithm principle, the broadband signal decomposition for multiple narrowband signal frequency band, and then for each frequency band for narrowband signal DOA estimation. The simulation results show that the algorithm has good performance.

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22

Hamzah, S. A., M. Esa, N. N. N. A. Malik, and M. K. H. Ismail. "Narrowband-to-Narrowband Frequency Reconfiguration with Harmonic Suppression Using Fractal Dipole Antenna." International Journal of Antennas and Propagation 2013 (2013): 1–9. http://dx.doi.org/10.1155/2013/834387.

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Harmonic suppressed fractal antenna with switches named TMFDB25 is developed to select desired frequency band from 400 MHz to 3.5 GHz. The radiating element length is changed to tune the operating frequency while the stub is used to eliminate the undesired harmonic frequency. The balun circuit is reduced by 75% from the original size. The antenna is built on a low loss material. It has the ability to select a single frequency out of fifteen different bands and maintain the omnidirectional radiation pattern properties. Furthermore, the antenna is designed, built, and tested. Simulation and measurement results show that the antenna operates well at the specific frequency range. Therefore, the antenna is suitable to be used for switching frequencies in the band of TV, GSM900/1800, 3G, ISM 2.4 GHz, and above.

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23

Ghosh, Saptarshi, Toan Trung Nguyen, and Sungjoon Lim. "Recent progress in angle-insensitive narrowband and broadband metamaterial absorbers." EPJ Applied Metamaterials 6 (2019): 12. http://dx.doi.org/10.1051/epjam/2019010.

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Recent progress in angle-insensitive narrowband and broadband metamaterial absorbers is presented herein. Initially, a few narrowband structures are described along with their absorption mechanisms. A bandwidth-enhanced absorber, conceptually derived from the existing narrowband geometry, is also discussed. Finally, several broadband absorbers having wide absorption bandwidths across different microwave frequency ranges are illustrated. The reported structures are primarily designed to exhibit high angularly stable responses suitable for practical applications. Furthermore, their geometries are fourfold symmetric, thereby displaying polarization-independent characteristics. Experimental verifications of the designed absorbers have been confirmed under normal and oblique incidences. The angle insensitivity, polarization independence, flexible absorption bandwidths (from narrowband to broadband), and commercial feasibility of the reported structures might establish them as potential candidates for manifold absorber applications.

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24

Gogolev, I. V. "Doppler Stretch and Delay Statistical Performance Comparison for Wideband and Narrowband Signal Model." Journal of the Russian Universities. Radioelectronics, no. 1 (April 17, 2018): 13–18. http://dx.doi.org/10.32603//1993-8985-2018-21-1-13-18.

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Narrowband approximation of Doppler effect by a frequency shift is inappropriate for some problems of radiolocation, hydro acoustics or passive location. In this case it is necessary to use Doppler stretch (time-scaling) as a signal parameter. Statistical performance of joint Doppler stretch and delay for arbitrary spectral width signal without narrowband approximations is derived in this paper.Narrowband and wideband parameters relations are investigated for triangle impulse with linear spectral modulation. Besides, Fisher Information Matrices (FIM) differences are analyzed. In the narrowband limit consideration of results in well-known FIM of Doppler shift and delay estimation are proposed. Another feature of wideband FIM is reference time dependence on time delay variance. Transition from Doppler stretch to Doppler frequency shift considering narrowband limitations results in translation invariant FIM.The article shows that reference time variance of delay estimation is related to estimated parameter modification and velocity influence on delay. Also, estimation variances in narrowband signal model differ from wideband parameter variances by magnitude of spectrum width to central frequency ratio.

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25

Abdallat, Salah A., Ayman S. Alqaqaa, Nidal A. Obaidat, and Rameh F. Alnueimi. "Efficacy and Side Effects of Narrowband-UVB in Early Stage Cutaneous T-Cell Lymphoma in Jordanian Patients." ISRN Dermatology 2014 (February 19, 2014): 1–4. http://dx.doi.org/10.1155/2014/951821.

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Background. Many studies, on light-skinned patients, suggested narrowband-UVB to be effective and safe for the treatment of early stage cutaneous T-cell lymphoma. Objectives. To evaluate the efficacy and side effects of narrowband-UVB in treatment of early stage cutaneous T-cell lymphoma in patients with skin phototypes III, IV, and V. Methods. A total of 27 patients with the diagnosis of early stage cutaneous T-cell lymphoma were involved in this prospective study. All patients received narrowband-UVB as monotherapy until clearance or a maximum of 42 sessions. Patients with complete clearance were followed for six months or relapse. Rate of clearance, number of sessions, and cumulative narrowband-UVB dose needed to achieve clearance, percentage of patients remaining in remission at 6 months, and side effects were analyzed. Results. Within 5–14 weeks (15–42 sessions), using cumulative narrowband-UVB dose ranging from 17.3 to 48.2 J/cm2, complete remission was achieved in 76.4% of patients. The rest of the patients achieved partial remission. Six months after discontinuation of the treatment, 42.8% of patients with complete remission remained in remission. Transient erythema in 11.1% of patients and mild hyperpigmentation in 14.8% of patients were the only side effects encountered during this study. Conclusion. We conclude that narrowband-UVB phototherapy is safe and effective for the treatment of early stage cutaneous T-cell lymphoma in darker-skinned patients.

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26

Matyszkiel, Robert, Bogusław Grochowina, Adam Dobkowski, Marcin Wiśniewski, and Paweł Domaros. "Using of New Narrowband Waveforms to Ensure Proper Operation of Command and Communication Systems." Zeszyty Naukowe Akademii Marynarki Wojennej 215, no. 4 (December 1, 2018): 47–61. http://dx.doi.org/10.2478/sjpna-2018-0026.

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Abstract Accomplishment of basic services implementation with specific quality is one of the main challenges of the command and communication systems for modern maritime safety and defense. The specificity of the marine environment imposes the use of narrowband HF (High Frequency) and VHF (Very High Frequency) radio communication devices which are capable to implement IP transmission. This paper presents the requirements for the HF and VHF radio systems according to the IP protocol requirements. At the beginning basic properties of narrowband HF and VHF waveforms in context of their operational scenarios has been described. Then results of experimental research (implementation of narrowband services — voice and data) has been presented. Finally further research directions with contribution of the authors, in NATO working groups related to the development of NBWF (Narrowband Waveform) for coalition communication has been presented.

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27

Cui, Jian Hua, and Nai Ping Cheng. "Adaptive Algorithm for Anti-Jamming in Broadband Communication." Applied Mechanics and Materials 716-717 (December 2014): 1252–56. http://dx.doi.org/10.4028/www.scientific.net/amm.716-717.1252.

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This paper presents a method to suppress narrowband interference in the direct sequence spread spectrum communication based frequency domain adaptive algorithm. The method determines the interference threshold by N-sigma algorithm and calculates the cut-off condition by separating the signal. The method suppresses the narrowband interference by frequency domain batch algorithm. This paper gives a detailed design method and simulation results, and makes a performance comparison with other methods. The results show that, the method in this paper has better performance than other methods. It is suitable for narrowband interference suppression in broadband systems.

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28

Zhang, Sheng Qing, Yi Feng Zhang, Zhao Li, and Cai Rong Zou. "Design and Implementation of OFDM Modem for Low Voltage Narrowband Powerline Communication." Advanced Materials Research 505 (April 2012): 257–62. http://dx.doi.org/10.4028/www.scientific.net/amr.505.257.

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Narrowband powerline communication has the great potential market application like Auto-Meter-Reading (AMR). This paper focuses on the design and implementation of narrowband powerline communication module with the OFDM technology. Firstly, it introduces the OFDM solution for low voltage powerline communication module design, then it describes the implementation of the sync module, Viterbi code translation module and FFT module based on FPGA platform in details. Finally, it provides the actual test results for the communication module. It shows, the communication data rate of the narrowband powerline communication is greatly improved with OFDM technology.

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29

Hou, Guozhi, Qingyuan Wang, Yu Zhu, Zhangbo Lu, Jun Xu, and Kunji Chen. "Tunable Narrowband Silicon-Based Thermal Emitter with Excellent High-Temperature Stability Fabricated by Lithography-Free Methods." Nanomaterials 11, no. 7 (July 13, 2021): 1814. http://dx.doi.org/10.3390/nano11071814.

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Thermal emitters with properties of wavelength-selective and narrowband have been highly sought after for a variety of potential applications due to their high energy efficiency in the mid-infrared spectral range. In this study, we theoretically and experimentally demonstrate the tunable narrowband thermal emitter based on fully planar Si-W-SiN/SiNO multilayer, which is realized by the excitation of Tamm plasmon polaritons between a W layer and a SiN/SiNO-distributed Bragg reflector. In conjunction with electromagnetic simulations by the FDTD method, the optimum structure design of the emitter is implemented by 2.5 periods of DBR structure, and the corresponding emitter exhibits the nearly perfect narrowband absorption performance at the resonance wavelength and suppressed absorption performance in long wave range. Additionally, the narrowband absorption peak is insensitive to polarization mode and has a considerable angular tolerance of incident light. Furthermore, the actual high-quality Si-W-SiN/SiNO emitters are fabricated through lithography-free methods including magnetron sputtering and PECVD technology. The experimental absorption spectra of optimized emitters are found to be in good agreement with the simulated absorption spectra, showing the tunable narrowband absorption with all peak values of over 95%. Remarkably, the fabricated Si-W-SiN/SiNO emitter presents excellent high-temperature stability for several heating/cooling cycles confirmed up to 1200 K in Ar ambient. This easy-to-fabricate and tunable narrowband refractory emitter paves the way for practical designs in various photonic and thermal applications, such as thermophotovoltaic and IR radiative heaters.

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30

Batchelor, Jonathan M., Adam Millington, Kim S. Thomas, Perways Akram, Jaskiran Azad, Anthony Bewley, Joanne R. Chalmers, et al. "Home-based narrowband UVB, topical corticosteroid or combination for children and adults with vitiligo: HI-Light Vitiligo three-arm RCT." Health Technology Assessment 24, no. 64 (November 2020): 1–128. http://dx.doi.org/10.3310/hta24640.

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Background Systematic reviews suggest that narrowband ultraviolet B light combined with treatments such as topical corticosteroids may be more effective than monotherapy for vitiligo. Objective To explore the clinical effectiveness and cost-effectiveness of topical corticosteroid monotherapy compared with (1) hand-held narrowband ultraviolet B light monotherapy and (2) hand-held narrowband ultraviolet B light/topical corticosteroid combination treatment for localised vitiligo. Design Pragmatic, three-arm, randomised controlled trial with 9 months of treatment and a 12-month follow-up. Setting Sixteen UK hospitals – participants were recruited from primary and secondary care and the community. Participants Adults and children (aged ≥ 5 years) with active non-segmental vitiligo affecting ≤ 10% of their body area. Interventions Topical corticosteroids [mometasone furoate 0.1% (Elocon®, Merck Sharp & Dohme Corp., Merck & Co., Inc., Whitehouse Station, NJ, USA) plus dummy narrowband ultraviolet B light]; narrowband ultraviolet B light (narrowband ultraviolet B light plus placebo topical corticosteroids); or combination (topical corticosteroids plus narrowband ultraviolet B light). Topical corticosteroids were applied once daily on alternate weeks and narrowband ultraviolet B light was administered every other day in escalating doses, with a dose adjustment for erythema. All treatments were home based. Main outcome measures The primary outcome was self-assessed treatment success for a chosen target patch after 9 months of treatment (‘a lot less noticeable’ or ‘no longer noticeable’ on the Vitiligo Noticeability Scale). Secondary outcomes included blinded assessment of primary outcome and percentage repigmentation, onset and maintenance of treatment response, quality of life, side effects, treatment burden and cost-effectiveness (cost per additional successful treatment). Results In total, 517 participants were randomised (adults, n = 398; and children, n = 119; 52% male; 57% paler skin types I–III, 43% darker skin types IV–VI). At the end of 9 months of treatment, 370 (72%) participants provided primary outcome data. The median percentage of narrowband ultraviolet B light treatment-days (actual/allocated) was 81% for topical corticosteroids, 77% for narrowband ultraviolet B light and 74% for combination groups; and for ointment was 79% for topical corticosteroids, 83% for narrowband ultraviolet B light and 77% for combination. Target patch location was head and neck (31%), hands and feet (32%), and rest of the body (37%). Target patch treatment ‘success’ was 20 out of 119 (17%) for topical corticosteroids, 27 out of 123 (22%) for narrowband ultraviolet B light and 34 out of 128 (27%) for combination. Combination treatment was superior to topical corticosteroids (adjusted risk difference 10.9%, 95% confidence interval 1.0% to 20.9%; p = 0.032; number needed to treat = 10). Narrowband ultraviolet B light was not superior to topical corticosteroids (adjusted risk difference 5.2%, 95% confidence interval –4.4% to 14.9%; p = 0.290; number needed to treat = 19). The secondary outcomes supported the primary analysis. Quality of life did not differ between the groups. Participants who adhered to the interventions for > 75% of the expected treatment protocol were more likely to achieve treatment success. Over 40% of participants had lost treatment response after 1 year with no treatment. Grade 3 or 4 erythema was experienced by 62 participants (12%) (three of whom were using the dummy) and transient skin thinning by 13 participants (2.5%) (two of whom were using the placebo). We observed no serious adverse treatment effects. For combination treatment compared with topical corticosteroids, the unadjusted incremental cost-effectiveness ratio was £2328.56 (adjusted £1932) per additional successful treatment (from an NHS perspective). Limitations Relatively high loss to follow-up limits the interpretation of the trial findings, especially during the post-intervention follow-up phase. Conclusion Hand-held narrowband ultraviolet B light plus topical corticosteroid combination treatment is superior to topical corticosteroids alone for treatment of localised vitiligo. Combination treatment was relatively safe and well tolerated, but was effective in around one-quarter of participants only. Whether or not combination treatment is cost-effective depends on how much decision-makers are willing to pay for the benefits observed. Future work Development and testing of new vitiligo treatments with a greater treatment response and longer-lasting effects are needed. Trial registration Current Controlled Trials ISRCTN17160087. Funding This project was funded by the National Institute for Health Research (NIHR) Health Technology Assessment programme and will be published in full in Health Technology Assessment; Vol. 24, No. 64. See the NIHR Journals Library website for further project information.

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Liao, Yan-Lin, Yan Zhao, Wen Zhang, and Sujuan Feng. "A graphene-based tunable guided-mode resonance narrowband mid-infrared filter." Modern Physics Letters B 32, no. 20 (July 19, 2018): 1850227. http://dx.doi.org/10.1142/s0217984918502275.

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We report a graphene-based tunable ultra-narrowband mid-infrared filter which can be tuned from 4.45122 [Formula: see text]m to 4.44675 [Formula: see text]m by tuning the Fermi level from 0.2 eV to 0.6 eV. Furthermore, the reflection bandwidth is less than 0.2 nm and the reflection rate is more than 0.55. The ultra-narrowband filter is designed based on the guided-mode resonance (GMR) effect. The shift of reflection peak is mainly caused by the change of the real part of the graphene’s permittivity. This tunable ultra-narrowband mid-infrared filter can be applied in the mid-infrared microscopy.

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32

Studański, Ryszard. "Digital Receiving of OQPSK Signals Dedicated for Maritime Mechatronic Systems." Solid State Phenomena 180 (November 2011): 366–71. http://dx.doi.org/10.4028/www.scientific.net/ssp.180.366.

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In this paper authors present a possible way to receive a narrowband digital signal that was previously registered in a wide spectrum. To begin with a scheme of receiving equipment is shown. Next, the digital signal processing leading to extraction information from narrowband OQPSK signal is described.

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33

Liao, Yan-Lin, Yan Zhao, Xingfang Zhang, Wen Zhang, and Zhenggen Chen. "An ultra-narrowband TE-polarization absorber with a dielectric grating and metal substrate." Modern Physics Letters B 31, no. 33 (November 27, 2017): 1750306. http://dx.doi.org/10.1142/s0217984917503067.

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We report an ultra-narrowband absorber with a dielectric grating and metal substrate. The simulation results show that we can achieve ultra-narrowband absorption with the absorption bandwidth less than 0.6 nm and the absorption rate more than 0.99 for TE-polarization (electric field is parallel to grating grooves). The simulation results also show the guide-mode resonance in the grating region and low power loss at the absorption peak. In addition, the ultra-narrowband absorption peak can be tuned by shrinking or enlarging the structure parameters. The figure of merit (FOM) is larger than 760 if this absorber is applied as a refractive index sensor.

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34

Kerr, Michele, Russ Couture, Douglas Ramsayer, and Joe Rich. "Integrated Narrowband/Broadband Access Architecture." SMPTE Journal 106, no. 5 (May 1997): 285–97. http://dx.doi.org/10.5594/j15766.

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35

Li, Yang. "Narrowband Bandpass Microstrip Filter Design." Advanced Materials Research 945-949 (June 2014): 2338–41. http://dx.doi.org/10.4028/www.scientific.net/amr.945-949.2338.

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This paper analyzes the basic theory of the microstrip narrow-band filter design and accomplishes the design of narrow band-pass filter whose center frequency is on L-band with the help of the Agilent ADS simulation software. The filter adopts Chebyshev’s prototype structure and consists of coupled microstrip line. Its fluctuation is less than 0.5dB and attenuation is less than 1.5dB between 1.9GHZ and 2.1GHZ .Its port Reflection coefficient less than-15dB and attenuation is greater than 20dB at 1.72GHZ and 2.3GHZ. Layout simulation meets the requirement of filter design.

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36

Tanghetti, E. A. "Paediatric psoriasis - narrowband UVB treatment." Yearbook of Dermatology and Dermatologic Surgery 2011 (January 2011): 125. http://dx.doi.org/10.1016/s0093-3619(10)79768-9.

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37

Freyens, Benoît Pierre, Mark Loney, and Tharaka Dissanayake. "Dynamic usage of narrowband spectrum." Telecommunications Policy 38, no. 2 (March 2014): 173–85. http://dx.doi.org/10.1016/j.telpol.2013.08.004.

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38

Kulkarni, R. G. "Polynomials for narrowband signal processing." IEE Proceedings - Vision, Image, and Signal Processing 149, no. 3 (2002): 159. http://dx.doi.org/10.1049/ip-vis:20020384.

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Zamberk, P., D. Velázquez, M. Campos, JM Hernanz, and P. Lázaro. "Paediatric psoriasis - narrowband UVB treatment." Journal of the European Academy of Dermatology and Venereology 24, no. 4 (April 2010): 415–19. http://dx.doi.org/10.1111/j.1468-3083.2009.03425.x.

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Petrovic, R., W. Roehr, and D. W. Cameron. "Multicarrier modulation for narrowband PCS." IEEE Transactions on Vehicular Technology 43, no. 4 (1994): 856–62. http://dx.doi.org/10.1109/25.330147.

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Lytel, Richard, and George F. Lipscomb. "Narrowband electrooptic tunable notch filter." Applied Optics 25, no. 21 (November 1, 1986): 3889. http://dx.doi.org/10.1364/ao.25.003889.

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Diamandi, Hilel Hagai, and Avi Zadok. "Ultra-narrowband integrated Brillouin laser." Nature Photonics 13, no. 1 (December 14, 2018): 9–10. http://dx.doi.org/10.1038/s41566-018-0330-1.

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Blum, R. S. "Distributed detection of narrowband signals." IEEE Transactions on Information Theory 41, no. 2 (March 1995): 519–23. http://dx.doi.org/10.1109/18.370158.

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Cheng, Yu Jian, Qiu Dong Huang, Yi Ran Wang, and Joshua Le-Wei Li. "Narrowband Substrate Integrated Waveguide Isolators." IEEE Microwave and Wireless Components Letters 24, no. 10 (October 2014): 698–700. http://dx.doi.org/10.1109/lmwc.2014.2344440.

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Cook, Timothy A., Brian A. Hicks, Paul G. Jung, and Supriya Chakrabarti. "Far-ultraviolet astronomical narrowband imaging." Applied Optics 48, no. 10 (March 26, 2009): 1936. http://dx.doi.org/10.1364/ao.48.001936.

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MCNAMARA, DAMIAN. "Narrowband UVB Repigments Vitiligo Lesions." Skin & Allergy News 39, no. 2 (February 2008): 40. http://dx.doi.org/10.1016/s0037-6337(08)70044-5.

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Koprinkov, I. G., Akira Suda, and Katsumi Midorikawa. "Tunable narrowband quasi-modeless laser." Optics Communications 225, no. 4-6 (October 2003): 371–76. http://dx.doi.org/10.1016/j.optcom.2003.07.036.

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Sebald, D. J., D. E. Bahr, and A. R. Kahn. "Narrowband auscultatory blood pressure measurement." IEEE Transactions on Biomedical Engineering 49, no. 9 (September 2002): 1038–44. http://dx.doi.org/10.1109/tbme.2002.802056.

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Lyons, R. "Interpolated narrowband lowpass FIR filters." IEEE Signal Processing Magazine 20, no. 1 (January 2003): 50–57. http://dx.doi.org/10.1109/msp.2003.1166628.

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Lee, Dhon-Gue, Loai G. Salem, and Patrick P. Mercier. "Narrowband Transmitters: Ultralow-Power Design." IEEE Microwave Magazine 16, no. 3 (April 2015): 130–42. http://dx.doi.org/10.1109/mmm.2015.2390111.

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