Relevant bibliographies by topics / Measurement of signal characteristics

Academic literature on the topic 'Measurement of signal characteristics'

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Published: 30 May 2022
Last updated: 31 May 2022

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Journal articles on the topic "Measurement of signal characteristics"

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Siebert, Markus, Sebastian Hagemeier, Tobias Pahl, Hüseyin Serbes, and Peter Lehmann. "Modeling of fiber-coupled confocal and interferometric confocal distance sensors." Measurement Science and Technology 33, no. 7 (April 6, 2022): 075104. http://dx.doi.org/10.1088/1361-6501/ac5f29.

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Abstract Laser distance sensors are a widespread, fast and contactless approach for distance and surface topography measurements. Main characteristics of those sensors are given by resolution, measurement speed and sensor geometry. With decreasing sensor size, the alignment of the optical components in sensor setup becomes more challenging. The depth response of optical profilers is analyzed to obtain characteristic parameters and, thus, to value the alignment and the transfer behavior of those sensors. We present a novel miniaturized sensor setup comprising of confocal and interferometric confocal signals within one sensor in order to compare both principles simply by obscuring the reference arm by an absorber. Further, we introduce a theoretical signal modeling in order to analyze influences such as spatial coherence, Gaussian beam characteristics and tilted reflectors on depth response signals. In addition to this, we show that the coherent superposition significantly reduces the axial resolution due to the confocal effect in interferometric signals compared to simple confocal signals in measurement and simulation results. Finally, an appropriate fit function is presented, in order to figure out characteristic sensor parameters from the obtained depth response signal. In this context, a good agreement to simulated and measured signals is achieved.
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Губін, Сергій Вікторович, Сергій Олександрович Тишко, Олег Євгенович Забула, and Юрій Миколайович Черниченко. "ОСЦИЛОГРАФІЧНИЙ МЕТОД ВИМІРЮВАННЯ ФАЗОВОГО ЗСУВУ НА БАЗІ ДВОНАПІВПЕРІОДНОГО ПЕРЕТВОРЕННЯ." RADIOELECTRONIC AND COMPUTER SYSTEMS, no. 4 (December 25, 2019): 47–54. http://dx.doi.org/10.32620/reks.2019.4.05.

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The subject matter of the article is the oscilloscope methods of measuring the phase shift of two harmonic signals, after carrying out their two-half-period transformation and summing. The goal is to develop ways to implement an oscilloscope method of measuring the phase shift of two harmonic signals, which will significantly reduce the component of measurement error caused by phase non-symmetry of the transmission channels, by reducing their length. Analyze the measurement error for each of the methods for determining the phase shift of two harmonic signals using their two-half-periodic transformation. The tasks: statement of measurement problem of determination of phase shift of two harmonic signals; analysis of known oscilloscope methods of phase shift measurement, development of methods for implementing the oscilloscope method based on the analysis of the characteristics of the total signal obtained during the two-half-period transformation; estimation of measurement errors for each method. The methods used are the methodology for estimating measurement errors in indirect measurements. The following results were obtained. Methods for implementing an oscilloscope measurement method using the total signal after a two-half-period transformation based on the analysis of temporal characteristics and local extrema of this signal are proposed. The list of measuring operations that implement each method is defined. The analysis of the components of measurement errors was performed and the degree of correlation was determined. Synthesized ratios for the calculation of measurement error. Conclusions. The scientific novelty of the obtained results is the following: an oscilloscopic method has been developed that will allow reducing substantially the component of the error caused by phase non-symmetry of the signal transmission channels; obtained ratios for the implementation of the oscilloscope measurement method using two-half-period conversion; obtained ratios to calculate the standard deviation of the total measurement error in each of the proposed methods.
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Lagun, Andrii, Oleksandr Mamro, and Volodymyr Yalechko. "STUDY OF THE DIELECTRIC CHARACTERISTICS OF INDUSTRIAL WOOD." Measuring Equipment and Metrology 82, no. 4 (2021): 8–11. http://dx.doi.org/10.23939/istcmtm2021.04.008.

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In the article, we consider the model of pulse signal distortion in the computer sound card channel. The use of such a model allows expanding the possibilities of using computers in the researches of the wood properties in the form of various dielectric characteristics analysis, in particular using the computer sound card channel. This makes it possible to verify the state of the signal propagation channel during the experiment. This experiment researches samples of wood for the presence of defects. Also is proposed an approach to constructing the distortion model. It allows to expand the possibilities of investigating the parameters of the pulse signal and to verification the state of the channel during the research of the dielectric properties of wood. To research, a sample of wood using a computer sound card is developed a structured scheme that allows you to analyze the characteristics of pulse signals during the measurement process. To determine the dielectric parameters of different types of industrial wood is developed the software in the MATLAB environment. Using it is analyzed complex pulse signals that used during the research. In particular, were taken into account different currents of wood polarization and dielectric characteristics.
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Bogachev, N., S. Andreev, V. Dyomin, N. Guseyn-zade, A. Kirillov, O. Kalinin, and A. Filippov. "PLASMA ASYMMETRICAL DIPOLE ANTENNA: THE MEASUREMENT OF SIGNAL CHARACTERISTICS." ELECTRONICS: Science, Technology, Business, no. 1 (2018): 88–91. http://dx.doi.org/10.22184/1992-4178.2018.172.1.88.91.

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Xu, Junshu, Changlong Xu, Deming Xu, and Xuexia Yang. "Diode large-signal characteristics measurement for high-power rectennas." Microwave and Optical Technology Letters 45, no. 3 (2005): 249–51. http://dx.doi.org/10.1002/mop.20786.

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Antonets, M. A., and N. A. Sidorovskaya. "Estimation of random-signal-source characteristics by field measurement." Radiophysics and Quantum Electronics 36, no. 8 (August 1993): 573–75. http://dx.doi.org/10.1007/bf01038439.

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Sheng, Xiaofei, Jianguo Shen, Yongjin Shen, Liufang Zhu, and Defu Zang. "Measurement of formation conductivity through-casing using a TEM method." Journal of Geophysics and Engineering 16, no. 2 (April 1, 2019): 439–50. http://dx.doi.org/10.1093/jge/gxz022.

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Abstract Due to the existence of the metal casing in production wells, it is difficult for a conventional well-logging method to achieve satisfactory results. To study the possibility of measuring the formation conductivity through casing by using a transient electromagnetic (TEM) method, characteristics of the response signals received at different source-receiver spacing are investigated. Based on the advantages of the response signals at long spacing in the separation of the direct and indirect coupled signals, the corresponding differential response signals calculated with different formation conductivities are studied further. Results show that: (1) the differential signals are three orders of magnitude smaller than that of the original response signals; (2) there is a maximum and a minimum in the differential signal; (3) with the increase of the spacing, the profile of differential signal hardly changes, but moves backward on the timeline and the amplitude decreases slowly, which is in sharp contrast to the original response signals and (4) the differential signal is proportional to the difference of corresponding formation conductivities and the maximum and minimum values in the response difference are the most sensitive. The research reveals the characteristics of TEM responses in cased-hole and the distribution of formation conductivity information, which is predicted to provide a new perspective for the design of long-spacing through-casing in the TEM conductivity logging tool and the signal processing method.
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Ju, Bin, Yun Tao Qian, and Huo Jie Ye. "Wavelet Based Measurement on Photoplethysmography by Smartphone Imaging." Applied Mechanics and Materials 380-384 (August 2013): 773–77. http://dx.doi.org/10.4028/www.scientific.net/amm.380-384.773.

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[Purpose] Smartphones video cameras can be used to detect the photoplethysmograph (PPG) signal.The pulse wave signal detected by smartphone always mixed mass noise because of finger moving, unevenness of pressure and outer light interference. Previous studies limit to the filtering algorithm that denoising signals, without considering characteristics information of pulse wave itself. [Method] In this paper, we propose an algorithm based on wavelet to detect qualified PPG, which captures three critical characteristic quantities through wavelet high frequency coefficient. [Results] Experiment illustrates that the detected PPG signal contain dicrotic wave, and whats more, further experiment on artery elasticity indexes indicates good robust of the algorithm. [Conclusions] Wavelet Based Measurement on Photoplethysmography by Smartphone Imaging can be used for the calculation of cardiovascular parameter such as angiosclerosis, arrhythmia, and vascular resistance.
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Andris, Peter, Tomáš Dermek, and Ivan Frollo. "Calibration of NMR Receiver using Spectrometer Characteristics." Measurement Science Review 21, no. 6 (October 26, 2021): 205–8. http://dx.doi.org/10.2478/msr-2021-0028.

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Abstract This article describes the measurement of the relation between input and output signals using two techniques: with a signal generator and with the thermal noise of a known resistance. Each of the techniques has its advantages and disadvantages. Both methods are tested and the results are compared. The input signal of the receiver is known in volts, while the output signal is in ADC (analogue-to-digital converter) units. It is the main difference versus the gain. Knowledge of the relation enables recalculation of the output signal into the input of the receiver or vice versa. It is important in some experiments. The method with the harmonic signal requires a suitable NMR spectroscopic console, generator of the harmonic signal and an attenuator, the method with the noise requires only the NMR console. It indicates that both methods are simple and cheap. The measured data are processed on a standard PC using common programs.
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Wang, Jun, Zhenya Zhu, Yongxin Gao, Frank Dale Morgan, and Hengshan Hu. "Measurements of the seismoelectric responses in a synthetic porous rock." Geophysical Journal International 222, no. 1 (May 4, 2020): 436–48. http://dx.doi.org/10.1093/gji/ggaa174.

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SUMMARY Seismoelectric measurements are conducted with a synthetic porous rock sample to model an ocean exploration. Two kinds of seismoelectric coupling signals, that is, the interfacial EM wave signal and the coseismic electric signal, have been recorded by the electrodes buried inside a rock sample instead of those located in the fluid or in the solid region near the interface as performed in previous works. These seismoelectric signals are clearly observed and identified with a high signal-to-noise ratio. The characteristics of the measured interfacial EM wave and coseismic electric signals are analysed with the experimental data. We also simulate the seismoelectric conversion fields and make a comparison between the measured and simulated seismoelectric signals. The result shows that the simulated and measured signals match well for both the interfacial EM wave and the coseismic electric fields accompanying the fast P wave. Our results also show that the amplitudes of seismoelectric signals are in the order of tens to hundreds of microvolts with our experimental system. This confirms that the seismoelectric signals are measurable in the interior of the rocks with current measurement techniques, suggesting the seismoelectric measurement to be a potential method for studying characteristics of the material beneath the seafloor.
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Dissertations / Theses on the topic "Measurement of signal characteristics"

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SUGIURA, Yoshie, Takaya YAMAZATO, Masaaki KATAYAMA, and 正昭 片山. "Measurement of Narrowband Channel Characteristics in Single-Phase Three-Wire Indoor Power-Line Channels." IEEE, 2008. http://hdl.handle.net/2237/11152.

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Sucic, Victor. "Parameters Selection for Optimising Time-Frequency Distributions and Measurements of Time-Frequency Characteristics of Nonstationary Signals." Queensland University of Technology, 2004. http://eprints.qut.edu.au/15834/.

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The quadratic class of time-frequency distributions (TFDs) forms a set of tools which allow to effectively extract important information from a nonstationary signal. To determine which TFD best represents the given signal, it is a common practice to visually compare different TFDs' time-frequency plots, and select as best the TFD with the most appealing plot. This visual comparison is not only subjective, but also difficult and unreliable especially when signal components are closely-spaced in the time-frequency plane. To objectively compare TFDs, a quantitative performance measure should be used. Several measures of concentration/complexity have been proposed in the literature. However, those measures by being derived with certain theoretical assumptions about TFDs are generally not suitable for the TFD selection problem encountered in practical applications. The non-existence of practically-valuable measures for TFDs' resolution comparison, and hence the non-existence of methodologies for the signal optimal TFD selection, has significantly limited the use of time-frequency tools in practice. In this thesis, by extending and complementing the concept of spectral resolution to the case of nonstationary signals, and by redefining the set of TFDs' properties desirable for practical applications, we define an objective measure to quantify the quality of TFDs. This local measure of TFDs' resolution performance combines all important signal time-varying parameters, along with TFDs' characteristics that influence their resolution. Methodologies for automatically selecting a TFD which best suits a given signal, including real-life signals, are also developed. The optimisation of the resolution performances of TFDs, by modifying their kernel filter parameters to enhance the TFDs' resolution capabilities, is an important prerequisite in satisfying any additional application-specific requirements by the TFDs. The resolution performance measure and the accompanying TFDs' comparison criteria allow to improve procedures for designing high-resolution quadratic TFDs for practical time-frequency analysis. The separable kernel TFDs, designed in this way, are shown to best resolve closely-spaced components for various classes of synthetic and real-life signals that we have analysed.
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North, Graham M. "Signal characteristics of surface EMG." Thesis, McGill University, 1989. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=55624.

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Schirtzinger, Mary Beth Bateman. "Maternal depression : measurement and characteristics /." The Ohio State University, 1990. http://rave.ohiolink.edu/etdc/view?acc_num=osu148768178825174.

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Кожухар, Павло Вікторович. "Кількісний контроль магнітних параметрів документів магнітооптичною телевізійною системою." Thesis, НТУУ «КПІ», 2016. https://ela.kpi.ua/handle/123456789/17695.

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В дисертаційній роботі розроблено магнітооптичну телевізійну систему, яка на відміну від відомих, дозволяє окрім якісного виконувати кількісний магнітний контроль документів. Розроблено узагальнений метод кількісного контролю магнітних параметрів документів, що дозволяє їх rласифікацію зі зниженим впливом шумів магнітооптичного перетворення, чутливістю до зміни параметрів намагнічування та неоднорідностей щільності друку. Удосконалено метод магнітооптичного топографування, що дозволяє отримувати сигнал двовимірного розподілу розсіяного магнітного поля елементів документів у матричній цифровій формі. Запропоновано методику оцінки чутливості і роздільної здатності телевізійної системи магнітооптичного контролю. Виконано комплексне експериментальне дослідження теоретичних напрацювань. Розроблені методи дозволяють підвищити вірогідність магнітного контролю (виявлення фальсифікації) документів, як виготовлених промислових методом (банкноти та захищені бланки) так і загально доступним (друк побутовою оргтехнікою) за рахунок виконання кількісного контролю їх магнітних параметрів. При цьому телевізійні системи, що реалізують запропоновані методи зберігають можливість якісного топологічного та трасологічного дослідження, тобто на відміну від відомих забезпечують комплексний магнітний контроль документів.
The magnetic control of documents (including banknotes and protected blanks) is used at its production, banking and forensic research. Present devices divide into two groups. First ones are using a stock of huge induction or Hall sensors and performing only quantitative magnetic control with low resolution. Second ones are using magneto-optic sensors, which allows doing qualitative magnetic control with high resolution but could not perform quantitative control due to low dynamic range. The dissertation covers developing of TV system intended for quantitative control of magnetic parameters of documents using magneto-optic sensor, which have not implemented. It allows increasing the accuracy of magnetic control of documents due to providing integrated (quantitative and qualitative) magnetic control with high resolution and using only one sensor. Developed generalized method of quantitative control of magnetic parameters of documents allows its classification with decreased effect of magneto-optic noise and sensitivity to changing of magnetization and print density. This method involves getting a two-dimensional distribution of the signal of scattered magnetic field of documents in matrix digital form perhaps improved method of magneto-optical topography with auxiliary magnetic field source and coprocessing of magneto-optic images by TV system. Thus, documents spatial distribution of magnetic flux density is obtained in suitable for digital automated signal processing form. The next steps are calculating histograms of magnetic field of reference and controlled documents; approximation and normalization of this histograms; pairwise comparison of normalized histograms by proposed qualitative index of dissimilarity and making check solution about a membership of controlled document at reference group. All these steps are performed automatically by TV system so the method allows decreasing expenditure of time during magnetic control of documents. In addition there is suggested the procedure of evaluating the sensitivity and resolution of the TV system for the magneto-optic check. It consist in SNR evaluation of magneto-optic image of test document sample with known signal and no-signal areas. A comprehensive experimental study of the theoretical developments is passed. Developed magneto-optical TV system allows detecting reprinting of document by another printer with accuracy 50 – 100% (for examined printing samples) at the expense of proposed qualitative control. There is proved for examined banknote samples a capability to detect a falsification of banknotes magnetic protection by developed system even if present (qualitative-only) magneto-optic detectors cannot detect falsification due to same topology of magnetic print. The sensitivity and resolution of developed TV system allows detection of magnetic paint strokes 21 μm width and resolution of strokes with width and spaced by 42 μm with SNR not less than 6 dB. Thus, developed methods allow to increase the accuracy of magnetic control (detection of falsification) of documents through the implementation of the quantitative control of their magnetic parameters, both for documents manufactured by industry (banknotes and protected forms) and made in publicly available way (print by office equipment). Herewith television systems implementing the method, retain the ability to qualitative documents research like topological and trasological, i. e. in contrast to known provide an integrated magnetic control of documents. That’s why scientific and practical results are implemented magneto-optic TV systems Regula 4197 and Regula 7701M, modern methodology of forensic research of magnetic print and digital help-desk system “Currensy”, which contains samples of magnetic parameters of world banknotes made by indicated above TV systems.
В диссертационной работе разработана магнитооптическая телевизионная система, которая в отличии от известных, позволяет помимо качественного выполнять количественный магнитный контроль документов. Разработан обобщенный метод количественного контроля магнитных параметров документов, который позволяет их классификацию со сниженным влиянием шумов магнитооптического преобразования, чувствительностью к изменению параметров намагничивания и неоднородностей плотности печати. Усовершенствован метод магнитооптического топографирования, что позволяет получать сигнал двумерного распределения рассеянного магнитного поля документов в матричной цифровой форме. Предложена методика оценки чувствительности и разрешающей способности телевизионной системы магнитооптического контроля. Проведено комплексное экспериментальное исследование теоретических наработок. Разработанные методы позволяют повысить достоверность магнитного контроля (выявления фальсификации) документов, как изготовленных промышленным методом (банкноты и защищенные бланки) так и общедоступным (печать бытовой оргтехникой) за счет выполнения количественного контроля их магнитных параметров. При этом телевизионные системы, реализующие предложенные методы, сохраняют возможность качественного топологического и трасологического исследования, т. е. в отличии от известных обеспечивают комплексный магнитный контроль документов.
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Sheet, Lenny. "Noise measurement to 40PPM using digital signal processing." Thesis, Massachusetts Institute of Technology, 1990. http://hdl.handle.net/1721.1/26832.

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Xia, Tian. "On-chip timing measurement /." View online ; access limited to URI, 2003. http://0-wwwlib.umi.com.helin.uri.edu/dissertations/dlnow/3112132.

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Lin, Yaoying. "Signal processing and experimental technology in ultrasonic flow measurement." kostenfrei, 2004. http://miless.uni-duisburg-essen.de/servlets/DocumentServlet?id=11652.

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Yasin, Seyed Mohammad Taghi Alhoseyni Almodarresi. "Application of intelligent signal processing to dynamic measurement systems." Thesis, University of Southampton, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.342812.

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Read, Craig. "Complexity characteristics and measurement within engineering systems." Thesis, Loughborough University, 2008. https://dspace.lboro.ac.uk/2134/8140.

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Complexity is a significant factor in the development of new products and systems; generally speaking, the higher the complexity, the more difficult products and systems are going to be to design and develop. There are a number of different factors that influence complexity within systems, namely: interoperability; upgradability; adaptability; evolving requirements; system size; automation requirements; performance requirements; support requirements; sustainability; reliability; the need for increased product lifespan; and finally, the length of time systems take to develop. There is, at present, no common language to describe complexity within engineered systems; this language needs to be developed in order to help industry cope with increasing product complexity and thus meet customer demands. This thesis represents a start in the development of that language, and thus an understanding of systems complexity. The thesis offers a framework for complexity analysis within systems, one which identifies some of the key complexity characteristics that need to be taken into consideration, and which embraces complexity problems, definitions, concepts and classifications, origins and coping mechanisms. It has also has been developed in terms of a measurement approach, thereby allowing for a meaningful comparison between products, and an understanding of the complexities within them. This framework was developed using information collected from academic literature and from more specific case studies. Each complexity characteristic was investigated, and the interactions between characteristics were identified; these interactions allow us to understand complexity and help to develop a common language. The thesis develops a measurement technique that quantifies various complexity characteristics in terms of the framework laid down, thus enabling a quantified understanding of complexity within systems. This new measurement approach was tested on a set of recent case studies, and the complexity characteristics produced by the measurement technique were, in turn, tested against attributes of the system. The framework itself is always evolving - it incorporates new complexity characteristics. Nevertheless, such evolution can only further our understanding of complexity. Further work, to explore and integrate the approach demonstrated in this thesis into an automated tool, and test its robustness, along with a continual development of other elements of the framework, such as a classification of complexity, is recommended.
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Books on the topic "Measurement of signal characteristics"

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Webster, John G. Electrical measurement, signal processing, and displays. Boca Raton: CRC Press, 2003.

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D’Antona, Gabriele, and Alessandro Ferrero. Digital Signal Processing for Measurement Systems. Boston, MA: Springer US, 2006. http://dx.doi.org/10.1007/0-387-28666-7.

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Hart, G. F. Wind propeller signal detection improvements. Fayetteville, Tenn: Tennessee Applied Physics, Inc., 1992.

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U.S. Dept. of Defense. Measurement of electromagnetic interference characteristics. Ascot: ILI, 1995.

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Jhang, Kyung-Young, Cliff J. Lissenden, Igor Solodov, Yoshikazu Ohara, and Vitalyi Gusev, eds. Measurement of Nonlinear Ultrasonic Characteristics. Singapore: Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-1461-6.

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Calcium measurement methods. New York: Humana Press, 2010.

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Principles of electrical measurement. Boca Raton, FL: Taylor & Francis, 2006.

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Tumanski, Slawomir. Principles of electrical measurement. Boca Raton, FL: CRC/Taylor & Francis, 2004.

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Kazuo, Nakata, ed. Fundamentals of speech signal processing. New York: Academic Press, 1985.

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Lydiate, Joseph. Flow measurement: Sensors and signal conditioning for flow meters. Manchester: University of Manchester, 1991.

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Book chapters on the topic "Measurement of signal characteristics"

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Rebizant, Waldemar, Janusz Szafran, and Andrzej Wiszniewski. "Characteristics of Measurement of Criterion Values and Adaptive Algorithms." In Signals and Communication Technology, 169–97. London: Springer London, 2011. http://dx.doi.org/10.1007/978-0-85729-802-7_9.

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Torigoe, Ippei. "Measurements of Physical Characteristics Using Sound at Audible or Lower Frequencies." In Handbook of Signal Processing in Acoustics, 983–1004. New York, NY: Springer New York, 2008. http://dx.doi.org/10.1007/978-0-387-30441-0_53.

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Jain, R. K., X. C. Zhang, M. G. Ressl, and T. J. Pier. "Precise Measurement of Signal Propagation Characteristics in GaAs Integrated Circuits by Picosecond Electro-Optic Sampling." In Springer Series in Chemical Physics, 107–9. Berlin, Heidelberg: Springer Berlin Heidelberg, 1986. http://dx.doi.org/10.1007/978-3-642-82918-5_30.

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Robinson, Kevin. "Signal Characteristics." In Practical Audio Electronics, 57–80. Abingdon, Oxon : Routledge, an imprint of the Taylor & Francis Group, 2020.: Focal Press, 2020. http://dx.doi.org/10.4324/9780429343056-5.

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Simmonds, Andrew. "Signal Characteristics." In Data Communications and Transmission Principles, 21–45. London: Macmillan Education UK, 1997. http://dx.doi.org/10.1007/978-1-349-13900-2_2.

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Devasahayam, Suresh R. "Signal Measurement." In Signals and Systems in Biomedical Engineering, 13–25. Boston, MA: Springer US, 2012. http://dx.doi.org/10.1007/978-1-4614-5332-1_2.

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Cai, Guowei, Ben M. Chen, and Tong Heng Lee. "Measurement Signal Enhancement." In Advances in Industrial Control, 83–96. London: Springer London, 2011. http://dx.doi.org/10.1007/978-0-85729-635-1_5.

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Lawrence, Andy. "Signal, Distortion, and Noise." In Astronomical Measurement, 1–24. Berlin, Heidelberg: Springer Berlin Heidelberg, 2013. http://dx.doi.org/10.1007/978-3-642-39835-3_1.

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Butler, John L., and Charles H. Sherman. "Transducer Characteristics." In Modern Acoustics and Signal Processing, 153–84. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-39044-4_4.

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Torrieri, Don. "Appendix C: Signal Characteristics." In Principles of Spread-Spectrum Communication Systems, 609–20. Cham: Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-14096-4_13.

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Conference papers on the topic "Measurement of signal characteristics"

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Schmidt, Roland, Paul O'Leary, Roland Ritt, and Matthew Harker. "MEMS based inclinometers: Noise characteristics and suitable signal processing." In 2017 IEEE International Instrumentation and Measurement Technology Conference (I2MTC). IEEE, 2017. http://dx.doi.org/10.1109/i2mtc.2017.7969830.

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Cai, Zibo, MirHojjat Seyedi, Daniel T. H. Lai, and Francois Rivet. "Characteristics of baseband digital signal transmission for intrabody communications." In 2014 IEEE International Instrumentation and Measurement Technology Conference (I2MTC). IEEE, 2014. http://dx.doi.org/10.1109/i2mtc.2014.6860730.

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Qingyun, Yuan, Zhang Xijun, Sun Guozhi, and Yang Jie. "Research on Frequency Characteristics of Signal Radiated from Corona Discharge." In 2007 8th International Conference on Electronic Measurement and Instruments. IEEE, 2007. http://dx.doi.org/10.1109/icemi.2007.4351067.

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Stevenson, Warren H., and Milind Rajadhyaksha. "Optical measurement of the velocity of moving surfaces: Signal characteristics." In ICALEO® ‘88: Proceedings of the Optical Sensing and Measurement Conference. Laser Institute of America, 1988. http://dx.doi.org/10.2351/1.5058042.

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Ryabova, N. V., A. A. Elsukov, R. R. Belgibaev, and E. V. Katkov. "Measurement of HF Ionospheric Channel Characteristics by FMCW Signal Sounding." In 2019 Wave Electronics and its Application in Information and Telecommunication Systems (WECONF). IEEE, 2019. http://dx.doi.org/10.1109/weconf.2019.8840595.

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Catalano, George D. "Characteristics of the inner product calculation in high-speed signal analysis." In 4th International Conference on Vibration Measurement by Laser Techniques, edited by Enrico P. Tomasini. SPIE, 2000. http://dx.doi.org/10.1117/12.386748.

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Singh, Mahesh K., Narendra Singh, and A. K. Singh. "Speaker's Voice Characteristics and Similarity Measurement using Euclidean Distances." In 2019 International Conference on Signal Processing and Communication (ICSC). IEEE, 2019. http://dx.doi.org/10.1109/icsc45622.2019.8938366.

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Hu, Jing, Xiaoping Ouyang, Zhongbing Zhang, Jinliang Liu, Liang Chen, and Jinlu Ruan. "Optical Readout Characteristics in a New Gas Scintillation Chamber for Neutron Measurement." In 2017 25th International Conference on Nuclear Engineering. American Society of Mechanical Engineers, 2017. http://dx.doi.org/10.1115/icone25-67249.

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A novel neutron diagnostic method is presented based on optical readout from scintillation in gases excited by recoil charged particles for fusion research. According to the method, we have designed a new gas scintillation chamber filled with scintillation gas CF4 and installed with a multi-wires structure to provide strong electric field. The electric field distributions of cylindrical multi-wire structures with different geometrical parameters are analyzed systematically. By building up an optimal multi-wire structure, the optical readout characteristics are also studied with energetic charged particles. Electron-induced avalanche in the electric field excites gas molecules to emit numerous scintillation photons, which are readout using photomultiplier tubes, and measured using multichannel analysers. The results show that the light signals and charge signals are enhanced simultaneously and the rise time of the light signal hardly changes, approximately 12ns, as the applied voltage increases. More importantly, the typical pulse height spectrum from the light signals is acquired, and the obtained resolution is 8.8% for 6.5MeV protons.
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Asogwa, Clement, Daniel Lai, and Stephen Collins. "An Empirical Measurement of Body Hydration using Galvanic Coupled Signal Characteristics." In 9th International Conference on Body Area Networks. ICST, 2014. http://dx.doi.org/10.4108/icst.bodynets.2014.257131.

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Qiu, Zhao-kun, Dong-ze Li, and Wei-dong Jiang. "Study of continuous wave radar for human motion characteristics measurement." In 2010 10th International Conference on Signal Processing (ICSP 2010). IEEE, 2010. http://dx.doi.org/10.1109/icosp.2010.5655886.

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Reports on the topic "Measurement of signal characteristics"

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Allen, A., S. Santoso, and E. Muljadi. Algorithm for Screening Phasor Measurement Unit Data for Power System Events and Categories and Common Characteristics for Events Seen in Phasor Measurement Unit Relative Phase-Angle Differences and Frequency Signals. Office of Scientific and Technical Information (OSTI), August 2013. http://dx.doi.org/10.2172/1096101.

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Victor, Smalyuk, and B. Bacha. Bunch length measurement using a BPM button signal. Office of Scientific and Technical Information (OSTI), December 2019. http://dx.doi.org/10.2172/1770732.

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DEPARTMENT OF DEFENSE WASHINGTON DC. Military Standard. Measurement of Electromagnetic Interference Characteristics. Fort Belvoir, VA: Defense Technical Information Center, January 1993. http://dx.doi.org/10.21236/ada294943.

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Mahrenholz, Bob G. An Improved Strain-Gage Signal Conditioner for Dynamic Stress Measurement. Fort Belvoir, VA: Defense Technical Information Center, May 1991. http://dx.doi.org/10.21236/ada254712.

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Wilson, D. Keith, Daniel Breton, Cart Hart, Vladimir Ostashev, Edward Nykaza, and Chris Pettit. Impact of Parametric Uncertainties on Scattered Signal Distributions and Receiver Operating Characteristics. Engineer Research and Development Center (U.S.), August 2018. http://dx.doi.org/10.21079/11681/28016.

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Alchanatis, Victor, Stephen W. Searcy, Moshe Meron, W. Lee, G. Y. Li, and A. Ben Porath. Prediction of Nitrogen Stress Using Reflectance Techniques. United States Department of Agriculture, November 2001. http://dx.doi.org/10.32747/2001.7580664.bard.

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Commercial agriculture has come under increasing pressure to reduce nitrogen fertilizer inputs in order to minimize potential nonpoint source pollution of ground and surface waters. This has resulted in increased interest in site specific fertilizer management. One way to solve pollution problems would be to determine crop nutrient needs in real time, using remote detection, and regulating fertilizer dispensed by an applicator. By detecting actual plant needs, only the additional nitrogen necessary to optimize production would be supplied. This research aimed to develop techniques for real time assessment of nitrogen status of corn using a mobile sensor with the potential to regulate nitrogen application based on data from that sensor. Specifically, the research first attempted to determine the system parameters necessary to optimize reflectance spectra of corn plants as a function of growth stage, chlorophyll and nitrogen status. In addition to that, an adaptable, multispectral sensor and the signal processing algorithm to provide real time, in-field assessment of corn nitrogen status was developed. Spectral characteristics of corn leaves reflectance were investigated in order to estimate the nitrogen status of the plants, using a commercial laboratory spectrometer. Statistical models relating leaf N and reflectance spectra were developed for both greenhouse and field plots. A basis was established for assessing nitrogen status using spectral reflectance from plant canopies. The combined effect of variety and N treatment was studied by measuring the reflectance of three varieties of different leaf characteristic color and five different N treatments. The variety effect on the reflectance at 552 nm was not significant (a = 0.01), while canonical discriminant analysis showed promising results for distinguishing different variety and N treatment, using spectral reflectance. Ambient illumination was found inappropriate for reliable, one-beam spectral reflectance measurement of the plants canopy due to the strong spectral lines of sunlight. Therefore, artificial light was consequently used. For in-field N status measurement, a dark chamber was constructed, to include the sensor, along with artificial illumination. Two different approaches were tested (i) use of spatially scattered artificial light, and (ii) use of collimated artificial light beam. It was found that the collimated beam along with a proper design of the sensor-beam geometry yielded the best results in terms of reducing the noise due to variable background, and maintaining the same distance from the sensor to the sample point of the canopy. A multispectral sensor assembly, based on a linear variable filter was designed, constructed and tested. The sensor assembly combined two sensors to cover the range of 400 to 1100 nm, a mounting frame, and a field data acquisition system. Using the mobile dark chamber and the developed sensor, as well as an off-the-shelf sensor, in- field nitrogen status of the plants canopy was measured. Statistical analysis of the acquired in-field data showed that the nitrogen status of the com leaves can be predicted with a SEP (Standard Error of Prediction) of 0.27%. The stage of maturity of the crop affected the relationship between the reflectance spectrum and the nitrogen status of the leaves. Specifically, the best prediction results were obtained when a separate model was used for each maturity stage. In-field assessment of the nitrogen status of corn leaves was successfully carried out by non contact measurement of the reflectance spectrum. This technology is now mature to be incorporated in field implements for on-line control of fertilizer application.
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Ye, Nong. Cyber Signal/Noise Characteristics and Sensor Models for Early Cyber Indications and Warning. Fort Belvoir, VA: Defense Technical Information Center, September 2005. http://dx.doi.org/10.21236/ada439692.

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Marshall, R. D., Long T. Phan, and M. Celebi. Measurement of structural response characteristics of full-scale buildings:. Gaithersburg, MD: National Institute of Standards and Technology, 1991. http://dx.doi.org/10.6028/nist.ir.4511.

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Phan, Long T., Erik M. Hendrickson, and Richard D. Marshall. Measurement of structural response characteristics of full-scale buildings:. Gaithersburg, MD: National Institute of Standards and Technology, 1992. http://dx.doi.org/10.6028/nist.ir.4782.

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Marshall, R. D., and T. Long Phan. Measurement of structural response characteristics of full-scale buildings:. Gaithersburg, MD: National Institute of Standards and Technology, 1992. http://dx.doi.org/10.6028/nist.ir.4884.

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