Relevant bibliographies by topics / Impulse circuits

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  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers

Academic literature on the topic 'Impulse circuits'

Author: Grafiati
Published: 29 July 2024
Last updated: 30 July 2024

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Journal articles on the topic "Impulse circuits"

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ITOH, MAKOTO, TAO YANG, and LEON O. CHUA. "EXPERIMENTAL STUDY OF IMPULSIVE SYNCHRONIZATION OF CHAOTIC AND HYPERCHAOTIC CIRCUITS." International Journal of Bifurcation and Chaos 09, no. 07 (July 1999): 1393–424. http://dx.doi.org/10.1142/s0218127499000961.

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In this paper, experimental results on impulsive synchronization of two kinds of chaotic circuits; namely, Chua's oscillator and a hyperchaotic circuit, are presented. To impulsively synchronize two Chua's oscillators, synchronization impulses sampled from one state variable of the driving circuit are transmitted to the driven circuit. To impulsively synchronize two hyperchaotic circuits, synchronizing impulses sampled from two signals of the driving circuit are sent to the driven circuit. Our experimental results show that the accuracy of impulsive synchronization depends on both the period and the width of the impulse. The ratio between the impulse width and impulse period for "almost-identical" synchronization increases as the impulse period increases. The robustness of impulsive synchronization to additive noise is also experimentally studied. For sufficiently short impulse periods, no significant differences are observed between impulsive and continuous synchronizations. The performance of chaotic spread spectrum communication systems based on impulsive synchronization is also studied experimentally.
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KILIÇ, RECAİ. "IMPULSIVE SYNCHRONIZATION BETWEEN TWO MIXED-MODE CHAOTIC CIRCUITS." Journal of Circuits, Systems and Computers 14, no. 02 (April 2005): 333–46. http://dx.doi.org/10.1142/s0218126605002325.

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So far, impulsive synchronization method has been applied to several well-known chaotic circuits and systems such as Chua's circuit, Lorenz system and hyperchaotic circuit. Here, we present a study of impulsive synchronization of another chaotic circuit, namely mixed-mode chaotic circuit which oscillates both autonomous and nonautonomous chaotic dynamics. By choosing two mixed-mode chaotic circuits as driving and driven chaotic circuits, we investigated whether these circuits are synchronized impulsively or not by evaluating the minimum length of impulse width (Q), and the ratio of impulse width to impulse period (Q/T). The results of our investigation confirm that two mixed-mode chaotic circuits can be synchronized impulsively with very narrow impulse width.
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KILIÇ, RECAI, MUSTAFA ALÇI, and ENIS GÜNAY. "TWO IMPULSIVE SYNCHRONIZATION STUDIES USING SC-CNN-BASED CIRCUIT AND CHUA'S CIRCUIT." International Journal of Bifurcation and Chaos 14, no. 09 (September 2004): 3277–93. http://dx.doi.org/10.1142/s0218127404011193.

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The impulsive synchronization method has been applied to several well-known chaotic circuits and systems such as Chua's circuit, Lorenz system and hyperchaotic circuit in the literature. In this paper, we also present two impulsive synchronization studies using SC-CNN-based circuit and Chua's circuit. In the first study, we have investigated the impulsive synchronization between two SC-CNN-based circuits. Pspice simulation results show that two SC-CNN-based circuits can be synchronized impulsively via x1 and x2 cell dynamics for different impulse width and impulse period values. And in the second study, we have investigated the impulsive synchronization between SC-CNN-based circuit and Chua's circuit. Pspice simulation results verify that two chaotic circuits, which have identical dynamical systems via appropriate parameter transformations but having quite different hardware implementations, can be synchronized impulsively for different impulse width and impulse period values.
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Pandey, Amit Kumar. "Marx Multistage Impulse Generator." Journal of Advanced Research in Power Electronics and Power Systems 07, no. 1&2 (May 13, 2020): 7–12. http://dx.doi.org/10.24321/2456.1401.202002.

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This generator generates lightning impulse voltages of upto 45 KV. This paper defines the progress of a cost effective and effortlessly portable compact 10 stages Marx Generator proficient of manufacturing lightning impulses voltage up to 45kV. In adding, three different investigational circuits of HV DC provisions have been made. The uppermost output was 15 kV DC which was occupied as the main supply for the Marx generator circuit. This generator can be castoff by small scale productions and theoretical institutions to prove impulse voltages and also to achieve testing on insulators of lower rating in laboratory. A total of 10 stages of both replicated, new Marx impulse generator circuit was considered and the impulse waves were documented. In this work, the assessment in terms of magnitude of the investigational and simulated 10 stages Marx generator circuit has been carried out as well as its descriptive curve has been drawn. These results have long-established the strength of the planned technique and they were in close arrangement.
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Sun, Cheng. "A Neuromuscular Electrotherapy Device Based on Arduino System." Theoretical and Natural Science 3, no. 1 (April 28, 2023): 584–89. http://dx.doi.org/10.54254/2753-8818/3/20220372.

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One form of electrophysiological therapy, low frequency impulse electrotherapy, makes use of electrical impulses of very low voltage and frequency. The low frequency impulsed current affects the skin's outer layer, causing an electrolytic effect and a powerful stimulation of nerves, which in turn activates the nerves, improves local blood circulation, and, most importantly, provides analgesia. The frequency, time, waveform, and duty cycle of the electrical pulse have a significant impact on the efficacy of low frequency impulse therapy. The design is built on an Arduino UNO development board, with five additional buttons and LED beads for display. Electrotherapy impulses of varying frequencies and duty ratios can be generated by pushing the correct button, and the device can be preconfigured to provide high, medium, or low levels of stimulation. Then, two amplifier circuits send the electrotherapy impulses to two electrodes that are placed on the skin's surface.
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Meador, J. L., A. Wu, C. Cole, N. Nintunze, and P. Chintrakulchai. "Programmable impulse neural circuits." IEEE Transactions on Neural Networks 2, no. 1 (1991): 101–9. http://dx.doi.org/10.1109/72.80295.

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Panas, Andrey I., Tao Yang, and Leon O. Chua. "Experimental Results of Impulsive Synchronization Between Two Chua's Circuits." International Journal of Bifurcation and Chaos 08, no. 03 (March 1998): 639–44. http://dx.doi.org/10.1142/s0218127498000437.

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Impulsive synchronization of chaotic dynamic systems has some important applications to chaotic secure communication and chaotic spread-spectrum communication systems. In this paper we present some experimental results on impulsive synchronization between two Chua's circuits. In our experiments, only one synchronizing impulse sequence is transmitted. The robustness of impulsive synchronization with respect to variations in the frequency and the width of impulses is studied. Experimental results show that robust impulsive synchronization can be achieved under noisy conditions and a 2% parameter mismatch between the driving system and the driven system. We also found that an amplified impulse sequence with a gain greater than unity can make the impulsive synchronization more robust. Moreover, we found that impulsive synchronization can be achieved with very narrow impulses.
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Tuethong, Piyapon, Peerawut Yutthagowith, and Anantawat Kunakorn. "Effective Simulation Approach for Lightning Impulse Voltage Tests of Reactor and Transformer Windings." Energies 13, no. 20 (October 16, 2020): 5399. http://dx.doi.org/10.3390/en13205399.

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In this paper, an effective simulation method for lightning impulse voltage tests of reactor and transformer windings is presented. The method is started from the determination of the realized equivalent circuit of the considered winding in the wide frequency range from 10 Hz to 10 MHz. From the determined equivalent circuit and with the use of the circuit simulator, the circuit parameters in the impulse generator circuit are adjusted to obtain the waveform parameters according to the standard requirement. The realized equivalent circuits of windings for impulse voltage tests have been identified. The identification approach starts from equivalent circuit determination based on a vector fitting algorithm. However, the vector fitting algorithm with the equivalent circuit extraction is not guaranteed to obtain the realized equivalent circuit. From the equivalent circuit, it is possible that there are some negative parameters of resistance, inductance, and capacitance. Using such circuit parameters from the vector fitting approach as the beginning circuit parameters, a genetic algorithm is employed for searching equivalent circuit parameters with the constraints of positive values. The realized equivalent circuits of the windings can be determined. The validity of the combined algorithm is confirmed by comparison of the simulated results by the determined circuit model and the experimental results, and good agreement is observed. The proposed approach is very useful in lightning impulse tests on the reactor and transformer windings.
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Ebrahim, Abdulla H., and Sergey Yu Udovichenko. "Algorithms for building and operation modeling of large electrical circuits with memristor-diode crossbars in a biomorphic neuroprocessor." Tyumen State University Herald. Physical and Mathematical Modeling. Oil, Gas, Energy 8, no. 4 (2022): 163–78. http://dx.doi.org/10.21684/2411-7978-2022-8-4-163-178.

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The biomorphic neuroprocessor is the hardware implementation of the impulse neural network in which incoming information from a set of numbers is converted into impulses, and outgoing information, on the contrary, from impulses into binary code. For the automatic building of electrical circuits of the input coding and output decoding units in neuroprocessor using ultra-large logic matrices based on a memristor-diode crossbar, appropriate algorithms have been developed. For the subsequent imitation modeling of information processing in these units, as well as in the memory matrix of the neuroprocessor, the algorithm for calculating large electrical circuits containing memristor-diode crossbars has been created. This simulation algorithm is based on the well-known algorithm of Simulation Program with Integrated Circuit Emphasis and includes original mathematical models of the memristor and the selective element of the Zener diode, as well as the algorithm for modeling the resistive switching of the memristor. The results of imitation modeling using the developed algorithms and corresponding programs showed the operability of the constructed electrical circuits of the input unit in the mode of encoding a binary number into a impulse frequency by a population of three neurons and the output unit of a neuroprocessor that decodes the impulses coming from neurons into binary format as well as the operability of the memory matrix under weighting and summing impulses. The created algorithms and programs package based on them can be used to effectively solve the engineering and technical problem of manufacturing a biomorphic neuroprocessor that requires modeling of information processing in individual neuroprocessor units based on large memristor-diode arrays in order to optimize their parameters.
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Glushko, V. I., and E. A. Deryugina. "DETERMINATION OF THE LEVEL OF OVERVOLTAGE IN THE SECONDARY CIRCUITS OF SUBSTATIONS WHEN LIGHTNING IMPULSE VOLTAGE IS DISTRIBUTED IN HIGH-VOLTAGE BUSES." ENERGETIKA. Proceedings of CIS higher education institutions and power engineering associations 60, no. 3 (May 17, 2017): 211–27. http://dx.doi.org/10.21122/1029-7448-2017-60-3-211-227.

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Lightning voltage impulse due to the waves of storm surge rolling out the high voltage line to a substation causes current to flow in the buses that, due to magnetic effect, induces overvoltage in the secondary circuit. Overvoltage in the system “wire – ground” is considered as obstructions which are hazard in relation to the possibility of electrical damage of the devices of relay protection and automation of substations. With the use of the inverse Laplace transformation, the solution of the problem the magnetic influence of the primary circuits to secondary circuits in the time domain depending on time of transition, which always occurs during the distribution of the voltage impulse in the buses, has been obtained. Estimation of the level of overvol tage in the system “wire – ground” for the case of failure of a bus nonlinear surges and arresters when lightning impulse of voltage is distributed on the buses along their length without deformation has been fulfilled. Solutions are obtained for overvoltage in the secondary circuits, according to which the levels of overvoltage can be estimated as “extremely stepped-up”, “lowered” and “averagely stepped-up” levels. With a method of computational experiment the levels of overvol tage for distribution substations with voltage 110 and 220 kV were assessed. The results are compared with the normalized values of the interference voltage. The suggested method of calculation of impulse magnetic influence of the primary circuits on the secondary circuits of substations while lightning impulse voltage is being distributed in high voltage buses for the case of failure of a nonlinear surge and arresters at the stage of design and operation of substations can be used as a test method for estimation of electrical durability of relay protection and automatic equipment from lightning and switching overvoltage.
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Dissertations / Theses on the topic "Impulse circuits"

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Lin, Dayang [Verfasser]. "Impulse-radio ultra-wideband circuits for communication and radar sensing / Dayang Lin." Ulm : Universität Ulm. Fakultät für Ingenieurwissenschaften und Informatik, 2015. http://d-nb.info/1069578452/34.

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Ferraz, Rafael da Silva. "Dispositivo para medição de impedância em sistemas de aterramento elétricos em alta frequência." Universidade Federal de Goiás, 2016. http://repositorio.bc.ufg.br/tede/handle/tede/6615.

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior - CAPES
This work presents the project and the implementation of a device that is capable of measuring the electrical effects, especially the impedance, in grounding meshes when subjected to atmospherical discharges. An analysis on the influence of the atmospheric discharges in electrical protection systems is performed and also a comparison between current and voltage impulsive circuits. The device is built of electronic circuits controlled by a microcontroller, with the possibility of parameter adjusting for shaping the generated impulse wave. The device was conceived such that it can be used for tests of soil impedance measurement and for verification of the behavior of electrical grounding systems under high frequencies. The results are presented for tests in different types of systems and there was satisfactory performance for the developed equipment when compared with a commercial device
Este trabalho apresenta o projeto e a implementação do dispositivo capaz de medir os efeitos elétricos, em especial, as impedâncias, em malha de aterramento, sujeito a descargas atmosféricas. Analisa-se as influências das descargas atmosféricas nos sistemas de proteção elétricos e desenvolve-se análise comparativa dos circuitos impulsivos de corrente e de tensão. Constrói-se o dispositivo que consiste de circuitos eletrônicos controlados por microcontrolador, com possibilidade de ajuste de parâmetros da onda gerada. O dispositivo produzido é utilizado para medição da impedância do solo e verificação do comportamento de sistemas de aterramento elétrico em baixas e altas frequências. São apresentados os resultados dos testes em diferentes tipos de sistemas, demonstrando o satisfatório desempenho quando comparado com instrumento comercial.
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Talej, Elie N. "A VLSI design of a finite impulse response low-pass digital filter." Ohio : Ohio University, 1988. http://www.ohiolink.edu/etd/view.cgi?ohiou1182871591.

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Lombardi, Alvaro Cesar Otoni. "Detecção de falhas em circuitos eletrônicos lineares baseados em classificadores de classe única." Universidade do Estado do Rio de Janeiro, 2011. http://www.bdtd.uerj.br/tde_busca/arquivo.php?codArquivo=3869.

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Esse trabalho está baseado na investigação dos detectores de falhas aplicando classificadores de classe única. As falhas a serem detectadas são relativas ao estado de funcionamento de cada componente do circuito, especificamente de suas tolerâncias (falha paramétrica). Usando a função de transferência de cada um dos circuitos são gerados e analisados os sinais de saída com os componentes dentro e fora da tolerância. Uma função degrau é aplicada à entrada do circuito, o sinal de saída desse circuito passa por uma função diferenciadora e um filtro. O sinal de saída do filtro passa por um processo de redução de atributos e finalmente, o sinal segue simultaneamente para os classificadores multiclasse e classe única. Na análise são empregados ferramentas de reconhecimento de padrões e de classificação de classe única. Os classficadores multiclasse são capazes de classificar o sinal de saída do circuito em uma das classes de falha para o qual foram treinados. Eles apresentam um bom desempenho quando as classes de falha não possuem superposição e quando eles não são apresentados a classes de falhas para os quais não foram treinados. Comitê de classificadores de classe única podem classificar o sinal de saída em uma ou mais classes de falha e também podem classificá-lo em nenhuma classe. Eles apresentam desempenho comparável ao classificador multiclasse, mas também são capazes detectar casos de sobreposição de classes de falhas e indicar situações de falhas para os quais não foram treinados (falhas desconhecidas). Os resultados obtidos nesse trabalho mostraram que os classificadores de classe única, além de ser compatível com o desempenho do classificador multiclasse quando não há sobreposição, também detectou todas as sobreposições existentes sugerindo as possíveis falhas.
This work deals with the application of one class classifiers in fault detection. The faults to be detected are related parametric faults. The transfer function of each circuit was generated and the outputs signals with the components in and out of tolerance were analyzed. Pattern recognition and one class classifications tools are employed to perform the analysis. The multiclass classifiers are able to classify the circuit output signal in one of the trained classes. They present a good performance when the fault classes do not overlap or when they are not presented to fault classes that were not presented in the training. The one class classifier committee may classify the output signal in one or more fault classes and may also classify them in none of the trained class faults. They present comparable performance to multiclass classifiers, but also are able to detect overlapping fault classes and show fault situations that were no present in the training (unknown faults).
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Fayolle, Gérard. "Conceptions et applications de circuits à mémoire de courant basse tension." Grenoble 1, 1998. http://www.theses.fr/1998GRE10151.

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Ce travail presente deux circuits bases sur les memoires de courant. Les applications developpees sont capables de travailler avec des alimentations en tension de 3v et moins. Pour ces realisations, il a ete necessaire de developper a la fois de nouvelles memoires de courants ainsi que des architectures originales pour repondre a tous les criteres des cahiers des charges. La premiere realisation est un fir pour une application video dont la fonction est, en sortie d'un filtre continu, d'y transferer une partie des contraintes de rejection. La phase lineaire que presente ce type de filtre se prete parfaitement bien a cette application tres sensible au delai de groupe. L'architecture developpee utilise un adressage cyclique qui permet de fortement reduire les degradations engendrees par les memoires de courant tout en conservant la dynamique. Le deuxieme circuit est un modulateur sigma-delta d'ordre 2 dont les performances requises sont une resolution superieure a 12 bits dans la bande 300-3400 hz, une surface d'integration reduite et une faible consommation. Pour arriver a obtenir la precision necessaire avec la faible tension d'alimentation, une nouvelle memoire a ete developpee. Sa particularite est d'utiliser un transistor de memorisation en zone triode qui lui confere une grande linearite. Elle laisse esperer des resultats en terme de linearite et de resolution proche de 14 bits.
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Muhr, Eloi. "Conception de générateurs d'impulsions et des circuits de mise en forme reconfigurables associés." Thesis, Aix-Marseille, 2016. http://www.theses.fr/2016AIXM4346.

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Depuis 2002, différentes bandes de fréquences de plusieurs GHz dites « Ultra-Large Bande » (ULB), généralement comprises entre 3,1GHz et 10,6GHz, ont été libérées de par le monde pour la transmission d’informations sans fil. La largeur de ces bandes est telle qu’il devient envisageable d’utiliser des impulsions comme support de l’information en lieu et place d’une porteuse modulée comme cela est le cas habituellement. En effet, le spectre d’une impulsion étant inversement proportionnel à sa durée, une large plage de fréquences est requise pour la transmission d’informations via des impulsions. Cependant, il devient possible d’accroitre les débits en rapprochant les impulsions émises lorsque ceci est nécessaire, tout en offrant la possibilité d’éteindre les circuits et donc réduire la consommation lorsque deux impulsions sont suffisamment éloignées dans le temps.Le travail de recherche de cette thèse est dans ce contexte de proposer une structure d’émetteur impulsionnel reconfigurable disposant d’un contrôle suffisamment fin pour s’adapter aux différents canaux des standards IEEE 802.15.4 et 802.15.6 et ce, en n’utilisant que des circuits numériques pour les besoins des applications faibles coût. Pour cela, une étude théorique sur la mise en forme des impulsions requises est faite. Puis, il est question de la conception des différentes fonctions nécessaires à la mise en œuvre d’un émetteur impulsionnel reconfigurable, telles qu’un oscillateur contrôlé en tension pour la bande 3,1GHz-10,6GHz à démarrage rapide et que le circuit de mise en forme des oscillations associé
Since 2002, various frequency bands of several GHz called "Ultra-WideBand" (UWB), generally between 3,1GHz and 10,6GHz, were liberalized in the world for wireless data transmission. The width of these bands is that it becomes possible to use pulses instead of a modulated carrier to transmit data. Indeed, as the spectrum of a pulse is inversely proportional to its duration, a wide range of frequencies is required for the transmission of information via pulses. However, it becomes possible to increase the rates by moving closer the emitted pulses when this is necessary, while providing the ability to switch off the circuits and thus reduce power consumption when two pulses are sufficiently far in time.To standardize the use of UWB frequency bands, standards such as IEEE 802.15.4 and 802.15.6 standards have emerged and have chosen to cut these frequency bands in channels of 500MHz and more. The aim of this thesis is also to propose a reconfigurable pulse transmitter structure with a fine enough control to address the different channels of IEEE 802.15.4 and 802.15.6 standard and, using only digital circuits to target low cost applications. For this, a theoretical study on the shaping of pulses required is made. Then it comes to the design of the various functions necessary for the implementation of a reconfigurable pulse transmitter, such as the implementation of a voltage controlled oscillator for 3,1GHz band-10,6GHz with quick start ability and the required oscillations shaping circuit
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Muhr, Eloi. "Conception de générateurs d'impulsions et des circuits de mise en forme reconfigurables associés." Electronic Thesis or Diss., Aix-Marseille, 2016. http://www.theses.fr/2016AIXM4346.

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Depuis 2002, différentes bandes de fréquences de plusieurs GHz dites « Ultra-Large Bande » (ULB), généralement comprises entre 3,1GHz et 10,6GHz, ont été libérées de par le monde pour la transmission d’informations sans fil. La largeur de ces bandes est telle qu’il devient envisageable d’utiliser des impulsions comme support de l’information en lieu et place d’une porteuse modulée comme cela est le cas habituellement. En effet, le spectre d’une impulsion étant inversement proportionnel à sa durée, une large plage de fréquences est requise pour la transmission d’informations via des impulsions. Cependant, il devient possible d’accroitre les débits en rapprochant les impulsions émises lorsque ceci est nécessaire, tout en offrant la possibilité d’éteindre les circuits et donc réduire la consommation lorsque deux impulsions sont suffisamment éloignées dans le temps.Le travail de recherche de cette thèse est dans ce contexte de proposer une structure d’émetteur impulsionnel reconfigurable disposant d’un contrôle suffisamment fin pour s’adapter aux différents canaux des standards IEEE 802.15.4 et 802.15.6 et ce, en n’utilisant que des circuits numériques pour les besoins des applications faibles coût. Pour cela, une étude théorique sur la mise en forme des impulsions requises est faite. Puis, il est question de la conception des différentes fonctions nécessaires à la mise en œuvre d’un émetteur impulsionnel reconfigurable, telles qu’un oscillateur contrôlé en tension pour la bande 3,1GHz-10,6GHz à démarrage rapide et que le circuit de mise en forme des oscillations associé
Since 2002, various frequency bands of several GHz called "Ultra-WideBand" (UWB), generally between 3,1GHz and 10,6GHz, were liberalized in the world for wireless data transmission. The width of these bands is that it becomes possible to use pulses instead of a modulated carrier to transmit data. Indeed, as the spectrum of a pulse is inversely proportional to its duration, a wide range of frequencies is required for the transmission of information via pulses. However, it becomes possible to increase the rates by moving closer the emitted pulses when this is necessary, while providing the ability to switch off the circuits and thus reduce power consumption when two pulses are sufficiently far in time.To standardize the use of UWB frequency bands, standards such as IEEE 802.15.4 and 802.15.6 standards have emerged and have chosen to cut these frequency bands in channels of 500MHz and more. The aim of this thesis is also to propose a reconfigurable pulse transmitter structure with a fine enough control to address the different channels of IEEE 802.15.4 and 802.15.6 standard and, using only digital circuits to target low cost applications. For this, a theoretical study on the shaping of pulses required is made. Then it comes to the design of the various functions necessary for the implementation of a reconfigurable pulse transmitter, such as the implementation of a voltage controlled oscillator for 3,1GHz band-10,6GHz with quick start ability and the required oscillations shaping circuit
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Tall, Ndiogou. "Etude et réalisation de circuits de récupération d'horloge et de données analogiques et numériques pour des applications bas débit et très faible consommation." Thesis, Aix-Marseille, 2013. http://www.theses.fr/2013AIXM4717.

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Les circuits de récupération d'horloge et de données sont nécessaires au bon fonctionnement de plusieurs systèmes de communication sans fil. Les travaux effectués dans le cadre de cette thèse concernent le développement de ces circuits avec d'une part la réalisation, en technologie HCMOS9 0,13 μm de STMICROELECTRONICS, de circuits CDR analogiques à 1 et 54 Mbit/s, et d'autre part, la mise en œuvre de fonctions CDR numériques programmables à bas débit. Un circuit CDR fonctionnant à plus bas débit (1 Mbit/s) a été conçu dans le cadre de la gestion d'énergie d'un récepteur ULB impulsionnel non cohérent. Ces deux structures ont été réalisées à l'aide de PLL analogiques du 3ème ordre. Un comparateur de phase adapté aux impulsions issues du détecteur d'énergie a été proposé dans cette étude. Les circuits ont ensuite été dimensionnés dans le but d'obtenir de très bonnes performances en termes de jitter et de consommation. En particulier, les performances mesurées (sous pointes) du circuit CDR à 1 Mbit/s permettent d'envisager une gestion d'énergie efficace (réduction de plus de 97% de la consommation du récepteur). Dans le cadre d'une chaîne de télémesure avion vers sol, deux circuits CDR numériques ont également été réalisés durant cette thèse. Une PLL numérique du second degré a été implémentée en vue de fournir des données et une horloge synchrone de celles-ci afin de piloter une chaîne SOQPSK entièrement numérique. Un circuit ELGS a également mis au point pour fonctionner au sein d'un récepteur PCM/FM
Clock and data recovery circuits are required in many wireless communication systems. This thesis is about development of such circuits with: firstly, the realization, in HCMOS9 0.13 μm of STMICROELECTRONICS technology, of 1 and 54 Mb/s analog CDR circuits, and secondly, the implementation of programmable digital circuits at low rates. In the aim of an impulse UWB transceiver dealing with video transmission, a CDR circuit at 54 Mb/s rate has been realized to provide clock signal synchronously with narrow pulses (their duration is about a few nanoseconds) from the energy detector. Another CDR circuit has been built at 1 Mb/s rate in a non-coherent IR- UWB receiver power management context. Both circuits have been implemented as 3rd order analog PLL. In this work, a phase comparator suitable for “RZ low duty cycle” data from the energy detector has been proposed. Circuits have been sized to obtain very good performances in terms of jitter and power consumption. Particularly, measured performances of the 1 Mb/s CDR circuit allow to plan an efficient power management (a decrease of more than 97% of the receiver total power consumption). In the context of a telemetry system from aircraft to ground, two digital CDR circuits have also been implemented. A second order digital PLL has been adopted in order to provide synchronous clock and data to an SOQPSK digital transmitter. Also, a digital ELGS circuit has been proposed to work in a PCM/FM receiver. For both CDR structures, the input signal rate is programmable and varies globally from 1 to 30 Mb/s
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Lecointre, Aubin. "Interface radio IR-UWB reconfigurable pour les réseaux de microsystèmes communicants." Thesis, Toulouse, INSA, 2010. http://www.theses.fr/2010ISAT0026/document.

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Les travaux présentés lors de cette thèse s’inscrivent dans le cadre des réseaux de microsystèmes communicants dont les réseaux de capteurs sont l’exemple le plus connu. La problématique adressée est la conception d’une interface radio communicante répondant aux besoins spécifiques des microsystèmes communicants : simplicité, faible coût, faible consommation, faible encombrement, haut débit et reconfigurabilité. Les technologies actuelles sans fil comme le WiFi, le Bluetooth, et Zigbee ne sont pas en mesure de répondre à ces contraintes spécifiques. L’étude se focalise sur la technologie IR-UWB (Impulse Radio Ultra-WideBand). Dans un premier temps, une étude conjointe sur la capacité du canal et l’implémentation matérielle est menée pour déterminer l’architecture optimale des émetteurs-récepteurs en IR-UWB. Cette étude propose l’utilisation d’une architecture multi bandes IR-UWB (MB-IR-UWB) à implémentation mixte à 60 GHz avec des antennes directives. Cette solution est optimisée sur les critères de débit et puissance consommée. Afin de supporter l’ensemble des besoins des applications des réseaux de microsystèmes communicants et l’évolution de l’environnement d’opération, la reconfigurabilité doit être implémentée dans les émetteur-récepteurs proposés. Ces travaux présentent une proposition de reconfigurabilité par paramètres, qui permet de supporter la plus grande gamme de reconfigurabilités multi propriétés (débit, taux d’erreur, portée, puissance consommée, …) de l’état de l’art. Enfin, pour valider par la mesure les travaux sur la reconfigurabilité et sur les architectures d’émetteur-récepteurs IR-UWB, des implémentations FPGA et ASIC sont réalisées. Un nouveau procédé de synchronisation et démodulation conjointe reconfigurable est proposé dans le récepteur IR-UWB BPSK S-Rake. Les mesures montrent que le circuit de traitement proposé améliore les performances en synchronisation, démodulation, efficacité, débit du réseau, consommation et complexité du circuit. L’émetteur-récepteur IR-UWB reconfigurable proposé atteint un débit et une gamme de reconfigurabilité supérieure à l’état de l’art
The research work presented in this thesis is situated in the framework of wireless sensor networks (WSNs). The issue addressed is the design of a radio interface answering the specific needs of WSNs: simplicity, low cost, low power, small size, high data rate and reconfigurability. Current wireless technologies like WiFi, Bluetooth, and Zigbee are not able to respond to these requirements. Thus this study focuses on Impulse Radio Ultra-WideBand (IR-UWB) technology. At first, a joint study of the channel capacity and the hardware implementation is carried out to determine the optimal architecture of IR-UWB transceivers. This study proposes an architecture using multi-band IR-UWB (MB-UWB-IR) with a mixed implementation at 60 GHz with directional antennas. This solution is optimized according to the criteria of data rate and power consumption. To support the all the needs of WSN applications and to adapt to the evolution of the WSN’s environment, reconfigurability must be implemented in the proposed IR-UWB transceiver. This thesis presents a new solution: the reconfigurability by parameters. It supports the widest range of multi-property reconfigurability (with respect to data rate, bit error rate, radio range, power consumption, ...) of the state of the art. Finally, to validate these techniques by measurements, FPGA and ASIC implementations are realized by using the reconfigurability and the IR-UWB transceiver architecture proposed. A new method for joint synchronization and demodulation is proposed for a reconfigurable IR-UWB BPSK S-Rake receiver. The measurements show that the proposed technique improves the circuit performance: synchronization, demodulation, efficiency, network throughput, power consumption and complexity of the circuit. The proposed IR-UWB reconfigurable transceiver achieves a data rate and a wider range of reconfigurability compared to the state of the art
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McBride, David Iain. "Air blast circuit breaker impulse noise : the role of audiometry in risk assessment of industrial noise." Thesis, University of Birmingham, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.393839.

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Books on the topic "Impulse circuits"

1

author, Wang Xiao, and Dokania Rajeev author, eds. Design of ultra-low power impulse radios. New York: Springer, 2013.

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McBride, David Iain. Air blast circuit breaker impulse noise: The role of audiometry in risk assessment of industrial noise. Birmingham: University of Birmingham, 1999.

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Watola, David Adam. Autoadaptive artificial impulse neural networks for pattern classification. 1991.

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Oren, Joel A. Design of an asynchronous third-order finite impulse response filter. 1994.

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Dokania, Rajeev, Xiao Wang, and Alyssa Apsel. Design of Ultra-Low Power Impulse Radios. Springer New York, 2016.

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Lee, Royce, Jennifer R. Fanning, and Emil F. Coccaro. The Clinical Neuroscience of Impulsive Aggression. Edited by Christian Schmahl, K. Luan Phan, Robert O. Friedel, and Larry J. Siever. Oxford University Press, 2018. http://dx.doi.org/10.1093/med/9780199362318.003.0008.

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Aggression can be categorized into three subtypes: premeditated aggression, frustration-related aggression, and impulsive aggression (IA), which is the focus of this chapter. It first delineates the social information processing model of IA and its neurobiological underpinnings, with a special focus on ventral prefrontal-amygdala, frontostriatal, and frontoparietal circuits. In these circuits, structural as well as functional alterations have been associated with IA. A large body of basic and clinical research has examined the role of neurotransmitters (glutamate, GABA) and neuromodulators (monoamines and neuropeptides) in mediating IA. The important role of the monoamines dopamine, serotonin, norepinephrine, and acetylcholine in the mediation of different aspects of IA and the pharmacological potential resulting from these alterations are depicted in the second half of the chapter. The chapter concludes with an overview of the most important etiological factors.
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Padhi, Ashwini K., Ali M. Mehdi, Kevin J. Craig, and Naomi A. Fineberg. Current Classification of Impulse Control Disorders: Neurocognitive and Behavioral Models of Impulsivity and the Role of Personality. Edited by Jon E. Grant and Marc N. Potenza. Oxford University Press, 2012. http://dx.doi.org/10.1093/oxfordhb/9780195389715.013.0017.

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Impulse control disorders (ICDs) are common disabling disorders that have impulsive behavior as a core feature. They emerge early in life and run a chronic lifelong course. They are assumed to lie at the severest end of a continuum of impulsivity that connects normal with pathological states. People with ICDs experience a drive to undertake repetitive acts. Although the consequences are damaging, performance of the impulsive act may be experienced as rewarding, or alternatively may relieve distress, implicating dysfunction of the neural circuitry involved in reward processing and/or behavioral inhibition. Clinical data are increasingly pointing toward an etiological association between some ICDs, such as pathological gambling and addiction, and others, such as trichotillomania and compulsive disorders. Comorbidity with other psychiatric disorders is also common, and hints at overlapping psychobiological processes across several diagnostic groups. The results of neurocognitive studies suggest that impulsivity is multidimensional and comprises dissociable cognitive and behavioral indices governed by separate underlying neural mechanisms. For example, trichotillomania may primarily involve motor impulsivity, whereas problem gambling may involve reward impulsivity and reflection impulsivity. Exploring neurocognitive changes in individuals with ICDs and other mental disorders characterized by poor impulse control, and among their family members, may help to elucidate the underpinning neurocircuitry and clarify their nosological status.
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Fanning, Jennifer R., and Emil F. Coccaro. Neurobiology of Impulsive Aggression. Edited by Phillip M. Kleespies. Oxford University Press, 2015. http://dx.doi.org/10.1093/oxfordhb/9780199352722.013.24.

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Aggression is a behavior with evolutionary origins, but in today’s society it’s often both destructive and maladaptive. The fact that aggression has a strong basis in biological factors has long been apparent from case histories of traumatic brain damage. Research over the past several decades has confirmed the involvement of neurotransmitter function and abnormalities in brain structure and function in aggressive behavior. This research has centered around the “serotonin hypothesis” and on dysfunction in prefrontal brain regions. As this literature continues to grow, guided by preclinical research and aided by the application of increasingly sophisticated neuroimaging methodology, a more complex picture has emerged, implicating diverse neurotransmitter and neuropeptide systems (e.g., glutamate, vasopressin, and oxytocin) and neural circuits. As the current pharmacological and therapeutic interventions are effective but imperfect, it is hoped that new insights into the neurobiology of aggression will reveal novel avenues for treatment of this destructive and costly behavior.
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Jones, Michael, Norman Qureshi, and Kim Rajappan. Atrial flutter. Edited by Patrick Davey and David Sprigings. Oxford University Press, 2018. http://dx.doi.org/10.1093/med/9780199568741.003.0117.

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Atrial flutter is the term given to one of the four types of supraventricular tachycardia; in it, atrial activation occurs as a consequence of a continuous ‘short circuit’: a defined and fixed anatomical route, resulting in a fairly uniform atrial rate, and uniform atrial flutter waves on the ECG. The ventricles are not a part of this arrhythmia circuit, and ventricular activation is variable, dependent on atrioventricular (AV) nodal conduction. Given that the atrial rate is essentially uniform (e.g. 300 min−1), ventricular activation tends to be regular (i.e. 150 min−1, 100 min−1, 75 min−1, etc., if the atrial rate is 300 mins−1), or regularly irregular if changes are occurring in the fraction of conducted impulses to the ventricles. When AV nodal conduction permits only 4:1 conduction or less, atrial flutter is usually obvious, but when ventricular rates are higher (150 min−1 or more) the flutter waves can be obscured by the QRS complexes, making diagnosis more difficult. Atrial flutter is of two types, typical and atypical. Typical atrial flutter is a right atrial tachycardia, with electrical activation proceeding around the tricuspid valve annulus. This arrhythmia is dependent on a zone of slow electrical conduction through the cavotricuspid isthmus (the tissue lying between the origin of the inferior vena cava and the posterior tricuspid valve). The resulting circuit can be either anticlockwise (activation proceeds up the inter-atrial septum, across the atrial roof, down the free wall, and then through the cavotricuspid isthmus to the basal septum) or clockwise (down the inter-atrial septum and around the circuit in the opposite direction). Anticlockwise typical atrial flutter is more common. Atypical atrial flutter refers to all other atrial flutters, and this includes other right atrial flutters (e.g. pericristal flutter), left atrial flutters, post-ablation or post-surgical flutters, and pulmonary vein flutters. The feature common to all types of flutter and which differentiates flutter from other types of supraventricular tachycardia is the presence of a macro-re-entrant anatomical circuit around which the electrical impulse travels continuously and repeatedly, thereby generating the flutter. Even though typical atrial flutter has a fairly obvious and specific appearance on the ECG, atypical flutters do not, and often it is only possible to differentiate atypical flutter from atrial tachycardias by invasive electrophysiology studies, as the ECG alone may be insufficient.
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Hogh-Olesen, Henrik. Art and the Brain’s Reward System. Oxford University Press, 2018. http://dx.doi.org/10.1093/oso/9780190927929.003.0008.

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Chapter 7 takes the investigation of the aesthetic impulse into the human brain to understand, first, why only we—and not our closest relatives among the primates—express ourselves aesthetically; and second, how the brain reacts when presented with aesthetic material. Brain scans are less useful when you are interested in the Why of aesthetic behavior rather than the How. Nevertheless, some brain studies have been ground-breaking, and neuroaesthetics offers a pivotal argument for the key function of the aesthetic impulse in human lives; it shows us that the brain’s reward circuit is activated when we are presented with aesthetic objects and stimuli. For why reward a perception or an activity that is evolutionarily useless and worthless in relation to human existence?
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Book chapters on the topic "Impulse circuits"

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Apsel, Alyssa, Xiao Wang, and Rajeev Dokania. "Low Power Impulse Radio Transceivers." In Analog Circuits and Signal Processing, 37–69. New York, NY: Springer New York, 2013. http://dx.doi.org/10.1007/978-1-4614-1845-0_3.

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Dutta Roy, Suhash Chandra. "The Mysterious Impulse Function and its Mysteries." In Circuits, Systems and Signal Processing, 17–24. Singapore: Springer Singapore, 2018. http://dx.doi.org/10.1007/978-981-10-6919-2_2.

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Dey, Anilesh, Anwesha Banerjee, D. K. Bhattacharya, and D. N. Tibarewala. "Does Music Affect HRV Impulse? A Time Domain Study." In Computational Advancement in Communication Circuits and Systems, 453–61. New Delhi: Springer India, 2015. http://dx.doi.org/10.1007/978-81-322-2274-3_50.

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Wiak, Sławomir. "Analysis of Transients in Electrical Circuits Containing Initially Magnetized Ferromagnetics for Impulse Excitation." In Electromagnetic Fields in Electrical Engineering, 83–88. Boston, MA: Springer US, 1988. http://dx.doi.org/10.1007/978-1-4613-0721-1_16.

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Pavan, Shanthi. "Continuous-Time Delta-Sigma Converters with Finite-Impulse-Response (FIR) Feedback." In Next-Generation ADCs, High-Performance Power Management, and Technology Considerations for Advanced Integrated Circuits, 77–90. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-25267-0_5.

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Badrieh, Fuad. "Impulse Response." In Spectral, Convolution and Numerical Techniques in Circuit Theory, 449–64. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-71437-0_22.

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Sabah, Nassir H. "Responses to Step and Impulse Inputs." In Circuit Analysis with PSpice, 547–75. Boca Raton : Taylor & Francis, CRC Press, 2017.: CRC Press, 2017. http://dx.doi.org/10.1201/9781315402222-18.

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Badrieh, Fuad. "Time Convolution with Impulse Response." In Spectral, Convolution and Numerical Techniques in Circuit Theory, 465–79. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-71437-0_23.

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Volos, Ch K., S. G. Stavrinides, I. M. Kyprianidis, I. N. Stouboulos, M. Ozer, and A. N. Anagnostopoulos. "Impulsive Synchronization Between Double-Scroll Circuits." In Chaos and Complex Systems, 469–74. Berlin, Heidelberg: Springer Berlin Heidelberg, 2012. http://dx.doi.org/10.1007/978-3-642-33914-1_65.

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Shin, Jong-Han. "New Impulse Neuron Circuit for Oscillatory Neural Networks." In ICANN ’94, 767–70. London: Springer London, 1994. http://dx.doi.org/10.1007/978-1-4471-2097-1_181.

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Conference papers on the topic "Impulse circuits"

1

Ren, Jingwei, and Pingyi Fan. "An OFDM Impulse Canceller with Impulse Detection." In 2006 International Conference on Communications, Circuits and Systems. IEEE, 2006. http://dx.doi.org/10.1109/icccas.2006.284900.

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Kim, Jaeha, Brian S. Leibowitz, and Metha Jeeradit. "Impulse sensitivity function analysis of periodic circuits." In 2008 IEEE/ACM International Conference on Computer-Aided Design (ICCAD). IEEE, 2008. http://dx.doi.org/10.1109/iccad.2008.4681602.

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Du, Chenliang, and Hossein Hashemi. "An UWB CMOS impulse radar." In 2013 IEEE Radio Frequency Integrated Circuits Symposium (RFIC). IEEE, 2013. http://dx.doi.org/10.1109/rfic.2013.6569621.

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Bakshi, S. T., and M. Coenen. "Impulse immunity test method for digital integrated circuits." In 8th International Conference on Electromagnetic Interference and Compatibility. IEEE, 2003. http://dx.doi.org/10.1109/icemic.2003.238030.

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Lande, Tor Sverre, and Hakon A. Hjortland. "Impulse Radio technology for Biomedical applications." In 2007 IEEE Biomedical Circuits and Systems Conference. IEEE, 2007. http://dx.doi.org/10.1109/biocas.2007.4463310.

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Hjortland, Hakon A., Dag T. Wisland, Tor Sverre Lande, Claus Limbodal, and Kjetil Meisal. "Thresholded samplers for UWB impulse radar." In 2007 IEEE International Symposium on Circuits and Systems. IEEE, 2007. http://dx.doi.org/10.1109/iscas.2007.378326.

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Bajramovic, Zijad, Meludin Veledar, Omer Hadzic, and Adnan Carsimamovic. "Analysis of test circuits for measuring impulse grounding resistance." In IEEE EUROCON 2013. IEEE, 2013. http://dx.doi.org/10.1109/eurocon.2013.6625061.

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Yutthagowith, P., and N. Pattanadech. "A Program for Design of Impulse Current Generator Circuits." In 2008 International Conference on Condition Monitoring and Diagnosis, CMD 2008. IEEE, 2008. http://dx.doi.org/10.1109/cmd.2008.4580412.

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Vavriv, D. M., and D. D. Vavriv. "Mechanisms of the chaos onset in electronic circuits." In 2008 4th International Conference on Ultrawideband and Ultrashort Impulse Signals (UWBUSIS). IEEE, 2008. http://dx.doi.org/10.1109/uwbus.2008.4669347.

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Tanji, Yuichi, and Hiroto Kamei. "Behavioral modeling of class E switching circuits with impulse modes." In 2015 IEEE 2nd International Future Energy Electronics Conference (IFEEC). IEEE, 2015. http://dx.doi.org/10.1109/ifeec.2015.7361417.

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