Signals, Circuits and Systems, 2003. SCS 2003. International Symposium on最新文献

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On the speaker verification using the TESPAR coding method 用TESPAR编码方法对说话人进行验证
Signals, Circuits and Systems, 2003. SCS 2003. International Symposium on Pub Date : 2003-07-10 DOI: 10.1109/SCS.2003.1226976
E. Lupu, Z. Fehér, P. Pop
{"title":"On the speaker verification using the TESPAR coding method","authors":"E. Lupu, Z. Fehér, P. Pop","doi":"10.1109/SCS.2003.1226976","DOIUrl":"https://doi.org/10.1109/SCS.2003.1226976","url":null,"abstract":"This work describes study on the speaker verification rate, using the TESPAR (Time Encoding Signal Processing and Recognition) coding method, when the speech signal is sampled at different rates. The effect of filtering on the speech signal was studied, as well. The TESPAR method is a processing and recognition method in the time domain, proposed by R.A. King. The key problem is to define the TESPAR alphabet used for the TESPAR coding process. In this paper is proposed an approach to generate this alphabet using the Kohonen Neural Networks in a vector quantization process. For the recognition process parallel Multi Layer Perceptron (MLP) neural network were used. As inputs for training/test vectors of the MLP-NN, the TESPAR-S matrices were employed.","PeriodicalId":375963,"journal":{"name":"Signals, Circuits and Systems, 2003. SCS 2003. International Symposium on","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131154524","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: 20
Fourier transform of signal induced in circuits with soft ferrite cores 软铁氧体磁心电路中感应信号的傅里叶变换
Signals, Circuits and Systems, 2003. SCS 2003. International Symposium on Pub Date : 2003-07-10 DOI: 10.1109/SCS.2003.1227140
O. Caltun
{"title":"Fourier transform of signal induced in circuits with soft ferrite cores","authors":"O. Caltun","doi":"10.1109/SCS.2003.1227140","DOIUrl":"https://doi.org/10.1109/SCS.2003.1227140","url":null,"abstract":"Frequently the distortions in an inductive circuit are analyzed and characterized by the ration between the amplitude of the superior harmonics of the induced signal and the amplitude of the first harmonic. More often the second and the third harmonics are considered. The paper tries to demonstrate to importance which must be done to the superior harmonic in order to characterize the response and magnetic properties of the soft ferrite core.","PeriodicalId":375963,"journal":{"name":"Signals, Circuits and Systems, 2003. SCS 2003. International Symposium on","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133085773","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: 1
Computer-aided network function approximation for multicriteria filter design 多准则滤波器设计的计算机辅助网络函数逼近
Signals, Circuits and Systems, 2003. SCS 2003. International Symposium on Pub Date : 2003-07-10 DOI: 10.1109/SCS.2003.1226953
L. Nedelea, M. Topa, M. Neag
{"title":"Computer-aided network function approximation for multicriteria filter design","authors":"L. Nedelea, M. Topa, M. Neag","doi":"10.1109/SCS.2003.1226953","DOIUrl":"https://doi.org/10.1109/SCS.2003.1226953","url":null,"abstract":"The paper presents the steps in computer-aided design of analog low and high-pass filters. The design starts with a classical filter, and then is multicriteria optimized to meet the behavioral and implementation requirements. The computer-aided tool uses Mathematica for symbolic computation of the objective function and its gradient, MATLAB for the optimization process.","PeriodicalId":375963,"journal":{"name":"Signals, Circuits and Systems, 2003. SCS 2003. International Symposium on","volume":"66 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133415388","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: 3
Characterizing and improving energy-delay tradeoffs in heterogeneous communication systems 异构通信系统中能量延迟权衡的表征与改进
Signals, Circuits and Systems, 2003. SCS 2003. International Symposium on Pub Date : 2003-07-10 DOI: 10.1109/SCS.2003.1227076
Nan Jiang Nan Jiang, J. Pisharath, A. Choudhary
{"title":"Characterizing and improving energy-delay tradeoffs in heterogeneous communication systems","authors":"Nan Jiang Nan Jiang, J. Pisharath, A. Choudhary","doi":"10.1109/SCS.2003.1227076","DOIUrl":"https://doi.org/10.1109/SCS.2003.1227076","url":null,"abstract":"Communication systems with multiple computing resources are gaining popularity. These devices consume a considerable amount of energy, and require that the system resources be fully utilized at all times. In this paper, we aim to reduce the energy consumption and also improve the system utilization by incorporating performance-enhancement and power-optimization techniques into a multi-resource heterogeneous communication system. We study the performance and energy improvements contributed by our techniques, using a traditional evaluation framework. However, this framework fails to clearly model the performance-energy tradeoffs in the system. Hence, we propose a more relevant framework with a new metric named Energy-resource efficiency (ERE) to study these systems. ERE defines a link between the performance and energy variations in a system to clearly highlight the various performance-energy tradeoffs. Our experimental results shown that, when ERE is used to calibrate the performance-energy tradeoffs, one can achieve up to 80% performance and energy gains in a power-aware heterogeneous communication system.","PeriodicalId":375963,"journal":{"name":"Signals, Circuits and Systems, 2003. SCS 2003. International Symposium on","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124535389","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: 5
Implementation of neural network with approximations functions 用逼近函数实现神经网络
Signals, Circuits and Systems, 2003. SCS 2003. International Symposium on Pub Date : 2003-07-10 DOI: 10.1109/SCS.2003.1227112
M. Hnatiuc, G. Lamarque
{"title":"Implementation of neural network with approximations functions","authors":"M. Hnatiuc, G. Lamarque","doi":"10.1109/SCS.2003.1227112","DOIUrl":"https://doi.org/10.1109/SCS.2003.1227112","url":null,"abstract":"The purpose of this work is to stimulate a neural network with non-linear activation functions. The non-linear functions are simulated in Microsoft Visual Studio C++ 6.0 to observe the precision and to implement on the programmable logic devices. This network is realized to accept very small input values. The multiplication between input values and weight values is realized with the add-logarithm and exponential functions. One approximates all the non-linear functions with linear functions using shift-add blocks.","PeriodicalId":375963,"journal":{"name":"Signals, Circuits and Systems, 2003. SCS 2003. International Symposium on","volume":"106 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131864110","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: 1
Sub-optimal solutions to code synthesis for space-time diversity 时空分集编码合成的次优解
Signals, Circuits and Systems, 2003. SCS 2003. International Symposium on Pub Date : 2003-07-10 DOI: 10.1109/SCS.2003.1226946
S. Ciochină, C. Anghel, A. Enescu
{"title":"Sub-optimal solutions to code synthesis for space-time diversity","authors":"S. Ciochină, C. Anghel, A. Enescu","doi":"10.1109/SCS.2003.1226946","DOIUrl":"https://doi.org/10.1109/SCS.2003.1226946","url":null,"abstract":"Transmit diversity is a very attractive solution for efficient communications through fading wireless channels. The paper presents some aspects concerning the synthesis of the coding matrix in a multiantenna configuration. Because no optimal (maximum coding advantage, maximum transmission rate, minimum delay) codes can be found for systems with more than two antennas, some sub-optimal solutions are analyzed.","PeriodicalId":375963,"journal":{"name":"Signals, Circuits and Systems, 2003. SCS 2003. International Symposium on","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132566440","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: 3
Neuronal prediction system of meteorological parameters for quality assurance of the traffic 用于交通质量保证的气象参数神经预测系统
Signals, Circuits and Systems, 2003. SCS 2003. International Symposium on Pub Date : 2003-07-10 DOI: 10.1109/SCS.2003.1227111
A. Trandabăț, M. Pîslaru, R. Ciobanu
{"title":"Neuronal prediction system of meteorological parameters for quality assurance of the traffic","authors":"A. Trandabăț, M. Pîslaru, R. Ciobanu","doi":"10.1109/SCS.2003.1227111","DOIUrl":"https://doi.org/10.1109/SCS.2003.1227111","url":null,"abstract":"This work tries to be an answer to the problem of the ice formations on the road and over the taking of landing ways surfaces. As we all know, the unpredicted apparition of the ice over the roads and in the airports is the main cause of the majority human and material looses in those two places. The neuronal prediction system wants to be an alternative to the existent forecasting systems. This system will combine the last moment technique like the networks, the software (Labview, Matlab) and the most modern programming approach: neuronal networks, neuro-fuzzy systems, statistical signal processing, and the result wants to be a prediction system for the ice formation which is very precise and less expensive than the existent systems.","PeriodicalId":375963,"journal":{"name":"Signals, Circuits and Systems, 2003. SCS 2003. International Symposium on","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116227717","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
The reduction of interference terms in the time-frequency plane 时频平面上干扰项的减少
Signals, Circuits and Systems, 2003. SCS 2003. International Symposium on Pub Date : 2003-07-10 DOI: 10.1109/SCS.2003.1227089
Mirela Bianu, A. Isar
{"title":"The reduction of interference terms in the time-frequency plane","authors":"Mirela Bianu, A. Isar","doi":"10.1109/SCS.2003.1227089","DOIUrl":"https://doi.org/10.1109/SCS.2003.1227089","url":null,"abstract":"There are few techniques for the reduction of interference terms. The most important between them is the reallocation technique. Other methods are based on the decomposition in frames of the signals to be processed. These frames represent discrete variants of some corresponding linear time-frequency representations. The aim of this paper is to propose a new method for the Wigner-Ville time-frequency representation's interference term reduction. This method is based on the conjoint use of the Gabor and Wigner-Ville time-frequency representations of the same signal. Simulations prove the performances of the new method.","PeriodicalId":375963,"journal":{"name":"Signals, Circuits and Systems, 2003. SCS 2003. International Symposium on","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116054046","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: 13
An 8-bit, 150 MS/s folding and interpolating ADC in 0.25 μm CMOS with resistive averaging 一个8位,150毫秒/秒的折叠和插值ADC在0.25 & μ m CMOS电阻平均
Signals, Circuits and Systems, 2003. SCS 2003. International Symposium on Pub Date : 2003-07-10 DOI: 10.1109/SCS.2003.1227067
H. Ahmadi, O. Shoaei, M. Azizi
{"title":"An 8-bit, 150 MS/s folding and interpolating ADC in 0.25 μm CMOS with resistive averaging","authors":"H. Ahmadi, O. Shoaei, M. Azizi","doi":"10.1109/SCS.2003.1227067","DOIUrl":"https://doi.org/10.1109/SCS.2003.1227067","url":null,"abstract":"An 8-bit, 150 MS/s folding interpolating ADC in a digital CMOS technology is described. The developed converter uses resistor interpolation method along with the fully-differential, continuous-time, and open-loop circuitry in order to achieve a high speed operation with low area and power consumption. Also the number of latches in the digital encoder block is reduced using previously described analog encoding. The simulation results of the converter in 0.25 μm CMOS are presented. The ADC power dissipation from a 3V power supply is 310 mW at 150 MHz sampling rate.","PeriodicalId":375963,"journal":{"name":"Signals, Circuits and Systems, 2003. SCS 2003. International Symposium on","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116176355","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: 7
A new approach to parameter identification of linear circuits 线性电路参数辨识的一种新方法
Signals, Circuits and Systems, 2003. SCS 2003. International Symposium on Pub Date : 2003-07-10 DOI: 10.1109/SCS.2003.1227088
F. Constantinescu, C. V. Marin, M. Nitescu, D. Marin
{"title":"A new approach to parameter identification of linear circuits","authors":"F. Constantinescu, C. V. Marin, M. Nitescu, D. Marin","doi":"10.1109/SCS.2003.1227088","DOIUrl":"https://doi.org/10.1109/SCS.2003.1227088","url":null,"abstract":"A new approach to parameter identification for linear circuits is presented. Approximate symbolic pole/zero expressions are equated to numerical values of poles and zeros extracted from gain vs. frequency characteristics. For illustration, parameters of an equivalent circuit of a separation transformer are identified.","PeriodicalId":375963,"journal":{"name":"Signals, Circuits and Systems, 2003. SCS 2003. International Symposium on","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115682998","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: 1
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