Relevant bibliographies by topics / Digital Signal Analyzer

Academic literature on the topic 'Digital Signal Analyzer'

Author: Grafiati
Published: 10 December 2022
Last updated: 28 January 2023

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Journal articles on the topic "Digital Signal Analyzer"

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Zubarev, Petr, Svetlana Ivanenko, Alina Ivanova, Andrey Kvashnin, Aleksandr Kotelnikov, Ekaterina Puryga, Aleksandr Khilchenko, and Vasiliy Shvyrev. "Digital Analyzer of Diamond Detector Signals for ITER Vertical Neutron Camera." Siberian Journal of Physics 9, no. 3 (October 1, 2014): 11–19. http://dx.doi.org/10.54362/1818-7919-2014-9-3-11-19.

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In this paper, digital analyzer of diamond detector signals of ITER Vertical Neutron Camera (ITER VNC) are described, which uses digital signal processing. Digital analyzer of pulse signals is based on ADC12500PXIe (two channels, 12 bit, 500 MHz, PXI Express), which satisfies the ITER VNC requirements. In this paper, the architecture of digital signal processing unit is given. Trapezoidal digital shaper for pile-up separation and energy spectrum unit are described. In addition, structure of digital analyzer software levels are considered
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Yue, Chenyang, Guoyuan Xu, Gangzheng Yue, Yanzhe Sun, and Zhiyu Mi. "Signal acquisition analyzer based on MSP432." Journal of Physics: Conference Series 2414, no. 1 (December 1, 2022): 012002. http://dx.doi.org/10.1088/1742-6596/2414/1/012002.

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Abstract The system is based on digital signal processing technology, takes MSP432P401R single-chip microcomputer as the main controller, uses the on-board ADC to convert the input signal into a digital signal, and then carries out FFT transformation to obtain the amplitude of each harmonic component, so as to carry out spectrum analysis and calculate THD/ THDo/ Δ values for further signal processing. The system realizes the signal processing and the calculation of distortion and distortion measurement error and expands the functions of calculating the normalized amplitude of the fundamental wave and harmonic and recovering the input signal waveform. Distortion measurement error value Δ ≤3%, can process signal amplitude range 30mV~600mV, fundamental frequency range 1kHz~100kHz, and the calculation and processing time is less than 10 seconds.
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Hou, Yonghong, Guihua Liu, Qing Wang, and Wei Xiang. "Performance Optimization of Digital Spectrum Analyzer With Gaussian Input Signal." IEEE Signal Processing Letters 20, no. 1 (January 2013): 31–34. http://dx.doi.org/10.1109/lsp.2012.2227255.

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Peterson, A. M., K. S. Chen, and I. R. Linscott. "The Multichannel Spectrum Analyzer." Symposium - International Astronomical Union 112 (1985): 373–83. http://dx.doi.org/10.1017/s0074180900146716.

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The MCSA is a special-purpose digital signal processor. Its main function is to filter a wide-band signal into many narrower bands, so that each of the output bands has a bandwidth that is a better match to the signal being searched for.The basic MCSA provides simultaneous output bandwidths of approximately 1 HZ, 32 Hz, 1024 Hz, and 74 kHz over a spectrum that is about 8 MHz wide. The input to the MCSA consists of a complex signal sampled at 10 MHz, and the outputs consist of either complex samples or power (square-law-detected) samples. In addition, the MCSA provides an accumulator for taking the integral of the power of the output bands for periods up to 1000 sec.The MCSA hardware is constructed using wire-wrap technology. The implementation of the hardware is done with the aid of a computer program developed specifically for the design of the MCSA. Care has been taken in the MCSA design to ensure that engineering tradeoffs do not adversely affect the performance of the system.
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Liu, Yang, Yong Tie, Shun Na, and Dong Li. "Correlation Analyzer Project for Teaching Digital Signal Processing with MATLAB and DSP Processor." Applied Mechanics and Materials 263-266 (December 2012): 139–42. http://dx.doi.org/10.4028/www.scientific.net/amm.263-266.139.

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Digital signal processing (DSP) has become one of key enabling technologies for communications, condition monitoring, multimedia computing, wireless networks and other areas requiring signal and information processing. With the rapid growth of applications of digital signal processing in the world, it has become necessary to introduce these concepts to graduates and undergraduates. Teaching of digital signal processing is carried out not only at the electrical and electronic engineering departments as the most traditional interested in this subject, but also others technical universities are carried out lectures and tutorials. In this paper, a digital signal processing development process is described. It starts from the conceptual algorithm design and computer simulation using MATLAB. After verification of the algorithm, a fixed-point C program is developed for a specific fixed-point DSP processor. This application covers most topics included in a DSP courses performing independent multiple simple experiments. The used methodology enables students and engineers to understand and develop complex fixed-point applications on hardware implementations.
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Fateeva, A. S., G. V. Nikonova, and I. E. Kashchenko. "Wideband Signal Analyzer Based on Time-Interleaved ADCs with Digital Calibration." Journal of Physics: Conference Series 1546 (May 2020): 012013. http://dx.doi.org/10.1088/1742-6596/1546/1/012013.

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Tan, Qiang, Cuimei Bo, Jun Li, Yiqing Wang, Xiaorong Wang, and Shubo Jiang. "Glucose Analyzer Based on Self-made Biosensor for High-performance Glucose Detection." MATEC Web of Conferences 327 (2020): 01003. http://dx.doi.org/10.1051/matecconf/202032701003.

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The concentration analyzer with high precision and wide range is the core device for monitoring the fermentation process. In this work, we designed and proposed a lowcost three-electrode glucose analyzer based on a self-made screen-printed enzyme biosensor chip, which has a Prussian blue (PB) nanocubic structure and leads to high sensitivity of 117.31 μAmM-1cm-2. The hardware design of the glucose analyzer can be divided into five critical parts, including digital, signal treatment system, power supply, motor-driven and the host computer. The signal treatment system is used to collect, convert and amplify the weak current signal generated by the biosensor. The digital circuit of the central processing unit of the analyzer is designed using the STM32F407ZET6. Besides, an external analog-to-digital converter is used to achieve high precision A/D conversion. The stability of the potentiostat is ensured by designing the precision power supply, hardware filtering, and algorithm filtering. The experimental results show that the glucose analyzer has a wide linear detection range from 1g/L to 120g/L and the coefficient of variation at 1g/L is 0.038, which exhibits excellent performance in stability and detection accuracy. The analyzer can be applied in the future for in-situ measurement of glucose concentration for its wide-range and high-precision detection capabilities.
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Фаустов, И. С., В. Б. Манелис, А. Б. Токарев, В. А. Козьмин, and В. А. Сладких. "ZIGBEE SIGNALS ANALYZER." ВЕСТНИК ВОРОНЕЖСКОГО ГОСУДАРСТВЕННОГО ТЕХНИЧЕСКОГО УНИВЕРСИТЕТА, no. 4 (October 20, 2021): 65–70. http://dx.doi.org/10.36622/vstu.2021.17.4.009.

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Широкое распространение беспроводных технологий требует развития средств контроля за устройствами и сетями передачи данных и, в частности, за беспроводными персональными сетями стандарта ZigBee. Известные способы поиска и приема сигналов ZigBee, требующие осуществления предварительной оценки частотного рассогласования, обладают высокой вычислительной сложностью. Некогерентный способ приема сигналов ZigBee не требует больших вычислительных ресурсов, но не обеспечивает удовлетворительную помехоустойчивость. Целью работы являлась разработка комбинированного алгоритма обнаружения и приема сигналов ZigBee. На основе разработанного алгоритма построен анализатор, позволяющий идентифицировать персональные сети, их передающее и приемное устройства. Новизна: для приёма сигналов при неизвестной частотной расстройке используется сочетание когерентной обработки на коротких временных интервалах с их последующим некогерентным накоплением. Предложенный алгоритм способен эффективно работать в неблагоприятных условиях приема и обладает относительно невысокой вычислительной сложностью. Результат: использование представленного решения позволяет выполнять обнаружение и прием сигналов ZigBee радиодоступных источников, идентифицировать персональную сеть, передающее и приемное устройства в этой сети. Практическая значимость: предложенный алгоритм может использоваться для построения анализатора сигналов ZigBee на программно-определяемом радиоприемном устройстве с полосой одновременной обработки сигналов от 2 МГц. Реализованный в универсальных цифровых радиоприемных устройствах семейства АРГАМАК алгоритм применяется в системах поиска и локализации несанкционированных источников радиоизлучений в контролируемых объектах The widespread adoption of wireless technologies requires the development of controls over devices and data networks and in particular over ZigBee wireless personal networks. Known methods of searching for and receiving ZigBee signals, which require a preliminary assessment of frequency offset, have a high computational complexity. The non-coherent method of receiving ZigBee signals does not require large computing resources but does not provide satisfactory noise immunity. The purpose of the work was to develop a combined algorithm for detecting and receiving ZigBee signals. Based on the developed algorithm, we built an analyzer that allows you to identify personal networks, their transmitting and receiving devices. Novelty: to receive signals with an unknown frequency offset, we used a combination of coherent processing at short time intervals with their subsequent non coherent accumulation. The proposed algorithm is able to work effectively in unfavorable reception conditions and has a relatively low computational complexity. Result: the use of the presented solution allows you to detect and receive ZigBee signals from radio-accessible sources, identify a personal network, a transmitting and receiving device in this network Practical relevance: the proposed method can be used to build a ZigBee signal analyzer on an SDR with a band of simultaneous signal processing from 2 MHz. The ZigBee network analyzer, implemented on the basis of a digital radio receiver of the ARGAMAK family, serves as the basis for the device for searching and localizing unauthorized radio sources in controlled objects
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Zhang, Guoping, and Mande Xie. "Design and Implementation of Digital Signal Transmission Performance Analyzer Based on FPGA." Research Journal of Applied Sciences, Engineering and Technology ` 11, no. 9 (February 21, 2013): 1991–97. http://dx.doi.org/10.19026/rjaset.5.4740.

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Inagaki, Shigemi, Eizi Ezura, Masaaki Kobayashi, and Kimio Morimoto. "Nonlinear Gain for a Subnoise-level Signal in a Digital Spectrum Analyzer." Japanese Journal of Applied Physics 37, Part 1, No. 9A (September 15, 1998): 5076–77. http://dx.doi.org/10.1143/jjap.37.5076.

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Dissertations / Theses on the topic "Digital Signal Analyzer"

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Shi, Xiaodong. "Upgrading liquid metal cleanliness analyzer (LiMCA) with digital signal processing (DSP) technology." Thesis, McGill University, 1994. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=22677.

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The development of advanced metal products requires "clean" liquid metals as their basic materials. There are more and more applications for which the cleanliness of the liquid metals has to be qualified that the number and size of inclusions must be controlled below some acceptable limits. Such demands for quality have resulted in the development of measuring systems that can count the number and size distribution of inclusions. One such device, the so-called LiMCA (Liquid Metal Cleanliness Analyzer), which was developed at McGill University, measures inclusions in liquid metals and has been successfully used in the aluminum industry for years.
Digital Signal Processing (DSP) technology has been successfully applied to upgrade the LiMCA system. With this technology, the DSP-based LiMCA system is able to describe each LiMCA transient by a group of seven parameters, and with the help of them, classify it into a certain category. Moreover, it simultaneously counts the classified peaks based on their height and their time of occurrence. (Abstract shortened by UMI.)
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Зубков, О. В., І. В. Свид, О. С. Мальцев, and Л. Ф. Сайківська. "In-circuit Signal Analysis in the Development of Digital Devices in Vivado 2018." Thesis, Theoretical and Applied Aspects of Device Development on Microcontrollers and FPGAs, MC&FPGA-2019, 2019. https://doi.org/10.35598/mcfpga.2019.003.

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Considered the implementation of in-circuit analysis of logical signals in digital devices synthesized in Xilinx Field-Programmable Gate Array. Designed a digital control device streaming analog-to-digital converter. An analysis of the results of the analog-digital conversion was carried out and measures were taken to smooth out the false results of the conversion.
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Зубков, О. В., І. В. Свид, О. С. Мальцев, and Л. Ф. Сайківська. "In-circuit Signal Analysis in the Development of Digital Devices in Vivado 2018." Thesis, NURE, MC&FPGA, 2019. https://mcfpga.nure.ua/conf/2019-mcfpga/10-35598-mcfpga-2019-003.

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Considered the implementation of in-circuit analysis of logical signals in digital devices synthesized in Xilinx Field-Programmable Gate Array. Designed a digital control device streaming analog-to-digital converter. An analysis of the results of the analog-digital conversion was carried out and measures were taken to smooth out the false results of the conversion.
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Lau, Anthony Kwok. "A digital oscilloscope and spectrum analyzer for anaysis of primate vocalizations : master's research project report." Scholarly Commons, 1989. https://scholarlycommons.pacific.edu/uop_etds/2177.

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The major objective of this report is to present information regarding the design, construction, and testing of the Digital Oscilloscope Peripheral which allows the IBM Personal Computer (IBM PC) to be used as both a digital oscilloscope and a spectrum analyzer. The design and development of both hardware and software are described briefly; however, the test results are analyzed and discussed in great detail. All documents including the circuit diagrams, program flowcharts and listings, and user manual are provided in the appendices for reference. Several different products are referred to in this report; the following lists each one and its respective company: IBM, XT, AT, and PS/2 are registered trademarks of International Business; Machines Corporation.; MS-DOS is a registered trademark of Microsoft Corporation.; and Turbo Basic is a registered trademark of Borland International, Inc.
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Whittaker, Philip. "On board signal analysis using novel analogue/digital signal processing techniques on low earth orbit mini/microsatellites." Thesis, University of Surrey, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.343484.

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Ghent, Jeremy E. "A digital signal processing approach to analyze the effects of multiple reflections between highway noise barriers." Ohio : Ohio University, 2003. http://www.ohiolink.edu/etd/view.cgi?ohiou1175090494.

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Pous, Nicolas. "Analyse de signaux analogiques/radiofréquences à l'aide de ressources digitales en vue du test." Phd thesis, Université Montpellier II - Sciences et Techniques du Languedoc, 2011. http://tel.archives-ouvertes.fr/tel-00667202.

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Les travaux présentés dans ce mémoire entrent dans le cadre de la réduction des coûts de production des circuits RF. En effet, la démocratisation de ces appareils pousse les industriels à chercher de nouvelles solutions afin de produire, à bas prix, ces circuits RF. Le test représentant une large partie du coût de ces produits, l'objectif de cette thèse a donc été de proposer une stratégie originale permettant d'effectuer l'analyse de signaux modulés à l'aide d'un équipement de test numérique faible coût. Tout d'abord, le manuscrit dresse un tableau général du test industriel et présente un éventail des solutions proposées dans la littérature pour réduire le coût du test des circuits RF, ainsi que des exemples d'utilisation du concept de " level-crossing ", méthode choisie pour effectuer la capture puis la reconstruction des signaux analogiques et RF. Les principes de base utilisés pour la reconstruction de signaux analogiques à partir d'informations temporelles sont ensuite abordés. L'élément clé des algorithmes de reconstruction est la détermination des instants de passage du signal par un seuil de tension prédéterminé. De cette information, il est ensuite possible de déterminer la phase, la fréquence et l'amplitude du signal observé. La suite est consacrée à l'analyse de signaux modulés. Dans un premier temps sur des modulations élémentaires, puis sur des schémas de modulations plus complexes, basés sur des cas d'étude concrets. Le travail se termine en abordant la prise en compte des non-idéalités de la chaîne d'acquisition. Il s'agit en particulier d'étudier l'impact de ces non-idéalités pour élaborer des algorithmes visant à compenser les erreurs résultantes.
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Lê, Nguyên Khoa 1975. "Time-frequency analyses of the hyperbolic kernel and hyperbolic wavelet." Monash University, Dept. of Electrical and Computer Systems Engineering, 2002. http://arrow.monash.edu.au/hdl/1959.1/8299.

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Larguier, Laurent. "Analyse de l'impact du bruit de commutation sur les blocs digitaux des circuits intégrés CMOS." Montpellier 2, 2008. http://www.theses.fr/2008MON20191.

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Rodesten, Stephan. "Program för frekvensanalys." Thesis, Örebro universitet, Institutionen för naturvetenskap och teknik, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:oru:diva-58157.

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Denna rapport täcker arbetsprocessen bakom att skapa en spektrumanalysator. Läsaren kommer att få läsa om den valda metoden men även alternativa metoder. Utöver detta kommer även de teoretiska delarna bakom varje moment att undersökas samt jämföras med potentiella alternativa lösningar. Projektet har utförts på uppdrag av KA Automation. Syftet med projektet var att skapa en basplattform för analys av ljudfrekvenser. Målet med detta var att kunna identifiera ljudegenskaper i form av frekvenserna hos exempelvis servomotorer i vattenpumpar. Tanken var att i ett senare utvecklingsskede kunna identifiera om och när nya frekvenser dykt upp i ljudprofilen vilket i sådana fall kan resultera i att motorn är i behov av service. Basplattformen är uppbyggd med hjälp av C# och ljudbehandlingsbiblioteket NAudio. Från resultatet kan slutsatsen dras att detta program kan analysera ljud och visa de olika frekvensernas styrka och därmed är en lämplig basplattform för vidareutveckling.
This report will cover the work process behind creating a spectrum analyzer. The reader will be able to read about the chosen method but also the alternative methods. Apart from this the theoretical parts behind every moment will also be covered and compared to potential alternative solutions. The project has been carried out on behalf of KA Automation. The purpose of the project was to create a base for analyzing sound frequencies. The goal was to be able to identify sound properties in the form of frequencies in servo motors in for example water pumps. The idea was to be able to in a later development stage be able to identify when new frequencies have entered the audio profile which might result in the motor to be in need of service. The base is created with the help of C# and the sound library NAudio. From the result one can conclude that this program can analyze sound and display the magnitude of its frequency components and is therefore a suitable base for future development.
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Books on the topic "Digital Signal Analyzer"

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Lechner, Werner, and Norbert Lohl. Analyse digitaler Signale. Edited by Wolfgang Schneider. Wiesbaden: Vieweg+Teubner Verlag, 1990. http://dx.doi.org/10.1007/978-3-322-89465-6.

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Schüssler, Hans Wilhelm. Digitale Signalverarbeitung: Analyse diskreter Signale und Systeme. 5th ed. Berlin: Springer, 2008.

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Glinchenko, Aleksandr Semenovich. Kompʹi︠u︡ternye spektralʹnye izmerenii︠a︡ parametrov signalov: Monografii︠a︡. Krasnoi︠a︡rsk: Sibirskiĭ federalʹnyĭ universitet, 2010.

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Bauer, Stephan. Online cardiac performance monitoring using digital signal processing techniques to analyze the intra-operative phonocardiogram. Ottawa: National Library of Canada = Bibliothèque nationale du Canada, 1993.

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Schüßler, Hans W. Digitale Signalverarbeitung 1: Analyse diskreter Signale und Systeme. 4th ed. Springer, 1994.

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Digitale Signalverarbeitung 1: Analyse diskreter Signale und Systeme. Berlin, Heidelberg: Springer Berlin Heidelberg, 1994.

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Ingle, Vinay K., and John G. Proakis. Digital Signal Processing Using MATLAB (Bookware Companion Series). Thomson-Engineering, 1999.

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Digitale Signalverarbeitung: Band I Analyse diskreter Signale und Systeme. Berlin, Heidelberg: Springer Berlin Heidelberg, 1988.

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Digitale Signalverarbeitung: Band I: Analyse diskreter Signale und Systeme. Berlin, Heidelberg: Springer Berlin Heidelberg, 1992.

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Schubler, Hans Wilhelm. Digitale Signalverarbeitung (Band 1 : Analyse Diskreter Signale Und System). 3rd ed. Springer-Verlag, 1992.

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Book chapters on the topic "Digital Signal Analyzer"

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Xu, Yanyi, Ming Yin, and Jianlin Xu. "Design of Digital Signal Transmission Performance Analyzer." In Advances in Intelligent and Soft Computing, 617–22. Berlin, Heidelberg: Springer Berlin Heidelberg, 2012. http://dx.doi.org/10.1007/978-3-642-30126-1_97.

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Lechner, Werner, and Norbert Lohl. "Digitale Filtertechnik." In Analyse digitaler Signale, 47–70. Wiesbaden: Vieweg+Teubner Verlag, 1990. http://dx.doi.org/10.1007/978-3-322-89465-6_3.

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Becker, Wolf-Jürgen, and Walter Hofmann. "Digitale Analyse analoger Signale." In Aufgabensammlung Elektrische Messtechnik, 319–57. Wiesbaden: Springer Fachmedien Wiesbaden, 2014. http://dx.doi.org/10.1007/978-3-658-05156-3_12.

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Lechner, Werner, and Norbert Lohl. "Einleitung." In Analyse digitaler Signale, 1–4. Wiesbaden: Vieweg+Teubner Verlag, 1990. http://dx.doi.org/10.1007/978-3-322-89465-6_1.

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Lechner, Werner, and Norbert Lohl. "Mathematische Grundlagen." In Analyse digitaler Signale, 5–46. Wiesbaden: Vieweg+Teubner Verlag, 1990. http://dx.doi.org/10.1007/978-3-322-89465-6_2.

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Lechner, Werner, and Norbert Lohl. "Frequenzanalyse-Verfahren." In Analyse digitaler Signale, 71–100. Wiesbaden: Vieweg+Teubner Verlag, 1990. http://dx.doi.org/10.1007/978-3-322-89465-6_4.

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Lechner, Werner, and Norbert Lohl. "Regressions- und Korrelationstechniken." In Analyse digitaler Signale, 101–62. Wiesbaden: Vieweg+Teubner Verlag, 1990. http://dx.doi.org/10.1007/978-3-322-89465-6_5.

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Lechner, Werner, and Norbert Lohl. "Trendanalyse-Verfahren." In Analyse digitaler Signale, 163–88. Wiesbaden: Vieweg+Teubner Verlag, 1990. http://dx.doi.org/10.1007/978-3-322-89465-6_6.

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Lechner, Werner, and Norbert Lohl. "Modellierung von Zufallsprozessen." In Analyse digitaler Signale, 189–226. Wiesbaden: Vieweg+Teubner Verlag, 1990. http://dx.doi.org/10.1007/978-3-322-89465-6_7.

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Lechner, Werner, and Norbert Lohl. "Kalmanfiltertechnik." In Analyse digitaler Signale, 227–51. Wiesbaden: Vieweg+Teubner Verlag, 1990. http://dx.doi.org/10.1007/978-3-322-89465-6_8.

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Conference papers on the topic "Digital Signal Analyzer"

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Cherevatenko, A. A., and V. B. Prikhozhenko. "LFM-500D digital-signal analyzer." In 2010 20th International Crimean Conference "Microwave & Telecommunication Technology" (CriMiCo 2010). IEEE, 2010. http://dx.doi.org/10.1109/crmico.2010.5632796.

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Beling, S., K. Leary, and G. Yukna. "An in-circuit signal analyzer for mixed signal digital signal processor." In [Proceedings] ICASSP 91: 1991 International Conference on Acoustics, Speech, and Signal Processing. IEEE, 1991. http://dx.doi.org/10.1109/icassp.1991.150559.

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Qi, Dewen, Xuan Guo, and Weitao Du. "Design of digital signal spectrum analyzer based on FPGA." In 2015 IEEE International Conference on Information and Automation (ICIA). IEEE, 2015. http://dx.doi.org/10.1109/icinfa.2015.7279747.

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Li, Huan, and Wenhua Ye. "Study of Digital Modulation Signal Error Vector Magnitude Based on Vector Signal Analyzer." In 2015 8th International Symposium on Computational Intelligence and Design (ISCID). IEEE, 2015. http://dx.doi.org/10.1109/iscid.2015.260.

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5

Taherkhani, M., and Sh Mohammadnejad. "Mode analyzer and modal phase-flip gate for integrated photonic circuits." In 2012 8th International Symposium on Communication Systems, Networks & Digital Signal Processing (CSNDSP 2012). IEEE, 2012. http://dx.doi.org/10.1109/csndsp.2012.6292675.

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6

Tang, Kai, Qiao Meng, and Hai-Tao Liu. "High-Speed Multi-Channel Multi-Threshold Level Sampling Test: Detected 1GHz Digital Signal by Agilent 16903A Logic Analyzer." In 2009 IEEE Circuits and Systems International Conference on Testing and Diagnosis. IEEE, 2009. http://dx.doi.org/10.1109/cas-ictd.2009.4960830.

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Yang, Steven, and Aaron Y. K. Yan. "Calibration of Defibrilator Analyzers at The HKSARG Standards and Calibration Laoratory (SCL)." In NCSL International Workshop & Symposium. NCSL International, 2015. http://dx.doi.org/10.51843/wsproceedings.2015.04.

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The Standards and Calibration Laboratory (SCL) has set up calibration facility for the calibration of defibrillator and defibrillator analyzer. Defibrillators are medical devices designed to resume normal heart pulse of a patient by discharging energy pulse to a person who is suffering from an emergency cardiac attack. They are commonly used in hospitals and medical institutes. At the SCL, the energy delivered by a defibrillator is measured using a high quality digital sampling system. The system comprises a high voltage divider, a sampling voltmeter, an impedance analyzer and a control computer. The sampled voltage waveform is digitally processed to derive the delivered energy. The system can also be used to check the accuracy of a defibrillator analyzer. The sampling system and its signal processing are described in this paper. To ensure the accuracy of the sampling system, it is calibrated against the laboratory's voltage and time reference standards. A standard waveform with calculable energy is used to verify the sampling system. It is shown that the system can achieve an energy measuring accuracy of better than 0.7%.
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Libreros, Domitilo, F. Sa´nchez Silva, I. Carvajal Mariscal, and G. Polupan. "Annular Flow Experimental Study in Horizontal Pipes Using Radial Proximity Probes." In ASME 2008 Fluids Engineering Division Summer Meeting collocated with the Heat Transfer, Energy Sustainability, and 3rd Energy Nanotechnology Conferences. ASMEDC, 2008. http://dx.doi.org/10.1115/fedsm2008-55305.

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The development of a new technique to detect and measure the annular flow parameters is presented in this article, the liquid film thickness was detected and measured in eight different radial positions, and the experimental information obtained was used to analyze the liquid film behaviour in order to set the wall regions where the probability to dry is higher. For the above purpose, a measuring system was developed, it was formed by a Digital Signal Processor (DSP) and a proximity circuit based on the embedded technology, it was also implemented a calibration methodology based on the Mandhane map to set the annular flow region in the experimental set up. The Digital Signal Processor (DSP) was also used to interpret and construct the signals according to its time and frequency behaviour. Due to its capacity of making complex operations, including its programming in C language, the device becomes an excellent real time tool to observe and quantify this phenomenon. The measuring and description of the annular flow is carried out through a digital camera, getting time series and visual patterns, creating a data base with hundreds of tests from the experimental system. The liquid film time series are interpreted through lineal transformation with Fourier series, where they are analyzed controlling the frequency and time. Subsequently, they are compared with the original signals to detect measurements uncertainty. The measuring prototype is full described for future applications in the instrumentation and control of the two-phase and multiphase flows experimental studies.
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Brandys, Irad, Yeshayahu Levin, Rahamim Atias, Yair Ifergan, and Yosef Cohen. "Experimental Heat Transfer Spectrum Shift Prevention of a Portable Radiation Spectrometry System." In ASME 2011 International Mechanical Engineering Congress and Exposition. ASMEDC, 2011. http://dx.doi.org/10.1115/imece2011-62929.

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Each radioactive material has its unique energy signature (spectrum). Spectrum shift during measurements is a well know phenomenon which occurs due to environmental temperature changes which affect the electronics, and can lead to misidentification of the radioactive material. We developed a new portable spectroscopy workstation based on Digital Signal Processing (DSP) technology, which includes an analog circuit, a Multi Channel Analyzer (MCA), 7 power suppliers and a laptop. The designed system, to which wide range of radioactive detectors can be attached, uses to identify a sampled radioactive material according to its spectrum. In order to prevent the spectrum shift phenomena, both natural and forced convection heat transfer experiments were carried out. Few configurations were tested during these experiments whose results yielded the final electronic packaging configuration of the system as well as the definition of the stabilization time of the system.
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Gu¨ler, Cenk, and Daniel H. Risher. "RCS Depressurization and Loss of Flow No Trip 3D Neutronic Transient Analyses." In 16th International Conference on Nuclear Engineering. ASMEDC, 2008. http://dx.doi.org/10.1115/icone16-48891.

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To be able to correctly analyze an RCS Depressurization or Loss of Flow accident with no reactor trip, the Westinghouse 3D Transient Neutronics tool RAVE™ was used. Plants which utilize all-digital Instrumentation and Control (I&C) systems may be required to consider a complete failure of the digital protection system. A backup analog system is provided in the event of a failure of the digital system; however the backup analog systems do not carry all safety trip signals. Therefore, it is postulated that the plant might experience an accident event in which no immediate trip signal is generated and protection would rely on operator action. To allow adequate time for the operator to recognize the malfunction and take action to manually trip the plant, it is assumed that operator action will not occur for ten minutes from the initiation of the transient. These kinds of transients may be analyzed with point kinetic transient codes; however, due to the lack of 3D neutronic feedback with a core height dependent moderator temperature coefficient and its effect on the axial and radial power distributions, it may not be possible to show that Departure from Nucleate Boiling (DNB) does not occur. Using 3D Neutronic transient analyses methods (RAVE™), it was shown that neither of these transients (RCS Depressurization or Loss of Flow) would generate DNB violations, even though the point kinetics version is showing the opposite.
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Reports on the topic "Digital Signal Analyzer"

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Graves, T. Evaluation of Tektronix (2 gigasample/second) Digital Signal Analyzer DSA 602. Office of Scientific and Technical Information (OSTI), January 1990. http://dx.doi.org/10.2172/6432247.

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Bielinskyi, Andrii O., Oleksandr A. Serdyuk, Сергій Олексійович Семеріков, Володимир Миколайович Соловйов, Андрій Іванович Білінський, and О. А. Сердюк. Econophysics of cryptocurrency crashes: a systematic review. Криворізький державний педагогічний університет, December 2021. http://dx.doi.org/10.31812/123456789/6974.

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Cryptocurrencies refer to a type of digital asset that uses distributed ledger, or blockchain technology to enable a secure transaction. Like other financial assets, they show signs of complex systems built from a large number of nonlinearly interacting constituents, which exhibits collective behavior and, due to an exchange of energy or information with the environment, can easily modify its internal structure and patterns of activity. We review the econophysics analysis methods and models adopted in or invented for financial time series and their subtle properties, which are applicable to time series in other disciplines. Quantitative measures of complexity have been proposed, classified, and adapted to the cryptocurrency market. Their behavior in the face of critical events and known cryptocurrency market crashes has been analyzed. It has been shown that most of these measures behave characteristically in the periods preceding the critical event. Therefore, it is possible to build indicators-precursors of crisis phenomena in the cryptocurrency market.
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Pstuty, Norbert, Mark Duffy, Dennis Skidds, Tanya Silveira, Andrea Habeck, Katherine Ames, and Glenn Liu. Northeast Coastal and Barrier Network Geomorphological Monitoring Protocol: Part I—Ocean Shoreline Position, Version 2. National Park Service, June 2022. http://dx.doi.org/10.36967/2293713.

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Following a review of Vital Signs – indicators of ecosystem health – in the coastal parks of the Northeast Coastal and Barrier Network (NCBN), knowledge of shoreline change was ranked as the top variable for monitoring. Shoreline change is a basic element in the management of any coastal system because it contributes to the understanding of the functioning of the natural resources and to the administration of the cultural resources within the parks. Collection of information on the vectors of change relies on the establishment of a rigorous system of protocols to monitor elements of the coastal geomorphology that are guided by three basic principles: 1) all of the elements in the protocols are to be based on scientific principles; 2) the products of the monitoring must relate to issues of importance to park management; and 3) the application of the protocols must be capable of implementation at the local level within the NCBN. Changes in ocean shoreline position are recognized as interacting with many other elements of the Ocean Beach-Dune Ecosystem and are thus both driving and responding to the variety of natural and cultural factors active at the coast at a variety of temporal and spatial scales. The direction and magnitude of shoreline change can be monitored through the application of a protocol that tracks the spatial position of the neap-tide, high tide swash line under well-defined conditions of temporal sampling. Spring and fall surveys conducted in accordance with standard operating procedures will generate consistent and comparable shoreline position data sets that can be incorporated within a data matrix and subsequently analyzed for temporal and spatial variations. The Ocean Shoreline Position Monitoring Protocol will be applied to six parks in the NCBN: Assateague Island National Seashore, Cape Cod National Seashore, Fire Island National Seashore, Gateway National Recreation Area, George Washington Birthplace National Monument, and Sagamore Hill National Historic Site. Monitoring will be accomplished with a Global Positioning System (GPS )/ Global Navigation Satellite System (GNSS) unit capable of sub-meter horizontal accuracy that is usually mounted on an off-road vehicle and driven along the swash line. Under the guidance of a set of Standard Operating Procedures (SOPs) (Psuty et al., 2022), the monitoring will generate comparable data sets. The protocol will produce shoreline change metrics following the methodology of the Digital Shoreline Analysis System developed by the United States Geological Survey. Annual Data Summaries and Trend Reports will present and analyze the collected data sets. All collected data will undergo rigorous quality-assurance and quality-control procedures and will be archived at the offices of the NCBN. All monitoring products will be made available via the National Park Service’s Integrated Resource Management Applications Portal.
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Payment Systems Report - June of 2020. Banco de la República de Colombia, February 2021. http://dx.doi.org/10.32468/rept-sist-pag.eng.2020.

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With its annual Payment Systems Report, Banco de la República offers a complete overview of the infrastructure of Colombia’s financial market. Each edition of the report has four objectives: 1) to publicize a consolidated account of how the figures for payment infrastructures have evolved with respect to both financial assets and goods and services; 2) to summarize the issues that are being debated internationally and are of interest to the industry that provides payment clearing and settlement services; 3) to offer the public an explanation of the ideas and concepts behind retail-value payment processes and the trends in retail payments within the circuit of individuals and companies; and 4) to familiarize the public, the industry, and all other financial authorities with the methodological progress that has been achieved through applied research to analyze the stability of payment systems. This edition introduces changes that have been made in the structure of the report, which are intended to make it easier and more enjoyable to read. The initial sections in this edition, which is the eleventh, contain an analysis of the statistics on the evolution and performance of financial market infrastructures. These are understood as multilateral systems wherein the participating entities clear, settle and register payments, securities, derivatives and other financial assets. The large-value payment system (CUD) saw less momentum in 2019 than it did the year before, mainly because of a decline in the amount of secondary market operations for government bonds, both in cash and sell/buy-backs, which was offset by an increase in operations with collective investment funds (CIFs) and Banco de la República’s operations to increase the money supply (repos). Consequently, the Central Securities Depository (DCV) registered less activity, due to fewer negotiations on the secondary market for public debt. This trend was also observed in the private debt market, as evidenced by the decline in the average amounts cleared and settled through the Central Securities Depository of Colombia (Deceval) and in the value of operations with financial derivatives cleared and settled through the Central Counterparty of Colombia (CRCC). Section three offers a comprehensive look at the market for retail-value payments; that is, transactions made by individuals and companies. During 2019, electronic transfers increased, and payments made with debit and credit cards continued to trend upward. In contrast, payments by check continued to decline, although the average daily value was almost four times the value of debit and credit card purchases. The same section contains the results of the fourth survey on how the use of retail-value payment instruments (for usual payments) is perceived. Conducted at the end of 2019, the main purpose of the survey was to identify the availability of these payment instruments, the public’s preferences for them, and their acceptance by merchants. It is worth noting that cash continues to be the instrument most used by the population for usual monthly payments (88.1% with respect to the number of payments and 87.4% in value). However, its use in terms of value has declined, having registered 89.6% in the 2017 survey. In turn, the level of acceptance by merchants of payment instruments other than cash is 14.1% for debit cards, 13.4% for credit cards, 8.2% for electronic transfers of funds and 1.8% for checks. The main reason for the use of cash is the absence of point-of-sale terminals at commercial establishments. Considering that the retail-payment market worldwide is influenced by constant innovation in payment services, by the modernization of clearing and settlement systems, and by the efforts of regulators to redefine the payment industry for the future, these trends are addressed in the fourth section of the report. There is an account of how innovations in technology-based financial payment services have developed, and it shows that while this topic is not new, it has evolved, particularly in terms of origin and vocation. One of the boxes that accompanies the fourth section deals with certain payment aspects of open banking and international experience in that regard, which has given the customers of a financial entity sovereignty over their data, allowing them, under transparent and secure conditions, to authorize a third party, other than their financial entity, to request information on their accounts with financial entities, thus enabling the third party to offer various financial services or initiate payments. Innovation also has sparked interest among international organizations, central banks, and research groups concerning the creation of digital currencies. Accordingly, the last box deals with the recent international debate on issuance of central bank digital currencies. In terms of the methodological progress that has been made, it is important to underscore the work that has been done on the role of central counterparties (CCPs) in mitigating liquidity and counterparty risk. The fifth section of the report offers an explanation of a document in which the work of CCPs in financial markets is analyzed and corroborated through an exercise that was built around the Central Counterparty of Colombia (CRCC) in the Colombian market for non-delivery peso-dollar forward exchange transactions, using the methodology of network topology. The results provide empirical support for the different theoretical models developed to study the effect of CCPs on financial markets. Finally, the results of research using artificial intelligence with information from the large-value payment system are presented. Based on the payments made among financial institutions in the large-value payment system, a methodology is used to compare different payment networks, as well as to determine which ones can be considered abnormal. The methodology shows signs that indicate when a network moves away from its historical trend, so it can be studied and monitored. A methodology similar to the one applied to classify images is used to make this comparison, the idea being to extract the main characteristics of the networks and use them as a parameter for comparison. Juan José Echavarría Governor
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