Proceedings of First International Caracas Conference on Devices, Circuits and Systems最新文献_第4页

Micro-turbine simulator based on speed and torque of a DC motor to drive actually loaded generators 微型涡轮模拟器基于直流电机的转速和转矩来驱动实际负载的发电机

Proceedings of First International Caracas Conference on Devices, Circuits and Systems Pub Date : 1995-12-12 DOI: 10.1109/ICCDCS.1995.499123

F. Farret, R. Gules, J. Marian

引用次数: 24

Applications of ambiguity function-based kernels in time-frequency representations 基于模糊函数的核函数在时频表示中的应用

Proceedings of First International Caracas Conference on Devices, Circuits and Systems Pub Date : 1995-12-12 DOI: 10.1109/ICCDCS.1995.499165

T. de Perez, R. Badra, A. Viloria, M. Stefanelli, O. Sucre

{"title":"Applications of ambiguity function-based kernels in time-frequency representations","authors":"T. de Perez, R. Badra, A. Viloria, M. Stefanelli, O. Sucre","doi":"10.1109/ICCDCS.1995.499165","DOIUrl":"https://doi.org/10.1109/ICCDCS.1995.499165","url":null,"abstract":"Time-Frequency Representations (TFRs) are useful tools for the analysis of non-stationary signals. However, a single TFR can not be considered optimum for all kinds of signals. This fact has motivated the development of a general optimization procedure to obtain a kernel specially matched to the signal under analysis. The procedure has two shortcomings: its computational complexity and its dependence on a parameter that is difficult to choose. In order to avoid this heavy procedure, this work proposes the use of TFR kernels based on the absolute value of the ambiguity function to obtain attributes related to the physical processes that generate the signals. The concept is applied to noise reduction in monocomponent signals combinations, determination of layer depth in reflection seismology, pitch contour extraction from speech signals and location of evoked potentials in brain signals. Experiments were performed using simulated and real signals. In each case, the selected kernel preserves the relevant information with minimum loss of resolution, and minimizes the cross-terms and other impurities that may affect the signal, thus demonstrating the effectiveness of the proposed method.","PeriodicalId":373470,"journal":{"name":"Proceedings of First International Caracas Conference on Devices, Circuits and Systems","volume":"55 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1995-12-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128957819","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Stability analysis of ferroresonant oscillations in networks with isolated neutral 孤立中性点网络中铁谐振振荡的稳定性分析

Proceedings of First International Caracas Conference on Devices, Circuits and Systems Pub Date : 1995-12-12 DOI: 10.1109/ICCDCS.1995.499115

T. van Craenenbroeck, D. van Dommelen, N. Janssens, F. Van De Meulebroeke

引用次数: 8

Comparisons between classical and neural schemes of process control: applications to a continuous reactor 过程控制经典方案与神经方案的比较:在连续反应器中的应用

Proceedings of First International Caracas Conference on Devices, Circuits and Systems Pub Date : 1995-12-12 DOI: 10.1109/ICCDCS.1995.499148

R. Lamanna, Y. Alcocer, E. Samper

引用次数: 0

Synthesis of antenna arrays using genetic algorithms 利用遗传算法合成天线阵列

Proceedings of First International Caracas Conference on Devices, Circuits and Systems Pub Date : 1995-12-12 DOI: 10.1109/ICCDCS.1995.499170

D. Marcano, M. Jimenez, F. Duran, O. Chang

引用次数: 251

A close loop DC motor speed control simulation system using SPICE 基于SPICE的闭环直流电机调速仿真系统

Proceedings of First International Caracas Conference on Devices, Circuits and Systems Pub Date : 1995-12-12 DOI: 10.1109/ICCDCS.1995.499156

A. Millan, M.I. Gimenez de Guzman, V. Guzmán, M. Torres

引用次数: 10

Nullator/norator models of active circuits with controlled parameters 参数可控有源电路的Nullator/norator模型

Proceedings of First International Caracas Conference on Devices, Circuits and Systems Pub Date : 1995-12-12 DOI: 10.1109/ICCDCS.1995.499110

L. Topor-Kaminski, M. Pasko

引用次数: 3

DSP application for QRS detection, alignment and averaging in ECG signals DSP在心电信号QRS检测、对准和平均中的应用

Proceedings of First International Caracas Conference on Devices, Circuits and Systems Pub Date : 1995-12-12 DOI: 10.1109/ICCDCS.1995.499134

J. Silva, J.R. Caldera, G. Passariello

引用次数: 0

Consideration of the transient configurations in the optimal coordination problem of directional overcurrent relays 定向过流继电器优化协调问题中暂态配置的考虑

Proceedings of First International Caracas Conference on Devices, Circuits and Systems Pub Date : 1995-12-12 DOI: 10.1109/ICCDCS.1995.499138

A. Urdaneta, L. Perez, H. Restrepo, J. Sanchez, J. Fajardo

{"title":"Consideration of the transient configurations in the optimal coordination problem of directional overcurrent relays","authors":"A. Urdaneta, L. Perez, H. Restrepo, J. Sanchez, J. Fajardo","doi":"10.1109/ICCDCS.1995.499138","DOIUrl":"https://doi.org/10.1109/ICCDCS.1995.499138","url":null,"abstract":"An iterative methodology is presented to coordinate the operation of the directional overcurrent relays of a meshed system, considering the changes in the system topology, and therefore, the changes in the currents detected by the relays, that occur during the total fault clearing time, when only one of the main relays has operated (transient configurations). A linear programming algorithm is used to calculate the time dial settings that minimize the sum of the operation times of the relays of the system for the faults under study, subject to the time coordination constraints associated to each of the system configurations that take place during the fault clearing process, considering the limits on the relay settings allowed by the corresponding devices and the time-current characteristic associated to each of the relays. Two real cases are presented to illustrate the application of the methodology: an industrial 5 bus system, with two 115/13.8 kV power transformers, and a realistic transmission and sub transmission network consisting of an 18 bus system with 63 kV and 230 kV transmission lines, 13 power transformers and 96 directional overcurrent relays.","PeriodicalId":373470,"journal":{"name":"Proceedings of First International Caracas Conference on Devices, Circuits and Systems","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1995-12-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123922608","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 6

Novel compound semiconductor devices based on III-V nitrides 基于III-V型氮化物的新型化合物半导体器件

Proceedings of First International Caracas Conference on Devices, Circuits and Systems Pub Date : 1995-12-12 DOI: 10.1109/ICCDCS.1995.499117

S. Pearton, C. Abernathy, F. Ren, R. Shul, S. Kilcoyne, M. Haggerott-Crawford, J. Zolper, R. G. Wilson, R. Schwartz, J. Zavada

引用次数: 0