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

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A 1-V MOSFET-only fully-differential dynamic comparator for use in low-voltage pipelined A/D converters 用于低压流水线A/D转换器的1 v仅mosfet全差分动态比较器
Signals, Circuits and Systems, 2003. SCS 2003. International Symposium on Pub Date : 2003-07-10 DOI: 10.1109/SCS.2003.1227068
R. Lotfi, M. Taherzadeh‐Sani, M. Azizi, O. Shoaei
{"title":"A 1-V MOSFET-only fully-differential dynamic comparator for use in low-voltage pipelined A/D converters","authors":"R. Lotfi, M. Taherzadeh‐Sani, M. Azizi, O. Shoaei","doi":"10.1109/SCS.2003.1227068","DOIUrl":"https://doi.org/10.1109/SCS.2003.1227068","url":null,"abstract":"Low-voltage low-power comparators implemented in standard digital processes are of increasing importance in different integrated applications. In this paper a 1-V fully-differential low-power MOSFET-only comparator with rail-to-rail input swing is presented which can be suitably used in very low-voltage low-power pipelined A/D converters. This comparator utilizes a resistive divider configuration with a MOSFET-only clock booster to supply a higher voltage for the dynamic latch in the intervals that a comparison is to be made. HSPICE simulations of the proposed comparator in a 0.25-μm CMOS process, confirm the rail-to-rail input range of the fully-differential comparator with a supply voltage of 1 V with a decision time of less than 1 ns while driving a capacitive load of 0.2pF. The worst-case dynamic power consumption of the proposed comparator is less than 100μW with a clock frequency of 50MHz.","PeriodicalId":375963,"journal":{"name":"Signals, Circuits and Systems, 2003. SCS 2003. International Symposium on","volume":"79 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":"127643021","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: 25
On the CNN template design for Gabor-type filters based on Pade approximation 基于Pade逼近的gabor型滤波器CNN模板设计
Signals, Circuits and Systems, 2003. SCS 2003. International Symposium on Pub Date : 2003-07-10 DOI: 10.1109/SCS.2003.1226982
E. David, P. Ungureanu, M. Ansorge, L. Goras
{"title":"On the CNN template design for Gabor-type filters based on Pade approximation","authors":"E. David, P. Ungureanu, M. Ansorge, L. Goras","doi":"10.1109/SCS.2003.1226982","DOIUrl":"https://doi.org/10.1109/SCS.2003.1226982","url":null,"abstract":"Gabor filters are widely used in various image processing and computer-vision applications. Being computationally intensive, analog implementation using Cellular Neural Networks (CNN) can be an attractive solution. In this communication is presented a method for CNN template design of Gabor like filters, based on Pade approximation of Gaussian filters. The errors of approximation are evaluated for various neighborhood radii.","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":"129658042","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: 2
Noise-resistant chaotic synchronization of nonhyperbolic maps via information transmission 基于信息传输的非双曲映射的抗噪声混沌同步
Signals, Circuits and Systems, 2003. SCS 2003. International Symposium on Pub Date : 2003-07-10 DOI: 10.1109/SCS.2003.1226934
A. Dmitriev, M. Hasler, G. Kassian, A. Khilinsky
{"title":"Noise-resistant chaotic synchronization of nonhyperbolic maps via information transmission","authors":"A. Dmitriev, M. Hasler, G. Kassian, A. Khilinsky","doi":"10.1109/SCS.2003.1226934","DOIUrl":"https://doi.org/10.1109/SCS.2003.1226934","url":null,"abstract":"Chaotic synchronization is generally extremely sensitive to the presence of noise and other interference in the channel. Is this sensitivity a fundamental property of chaotic synchronization or is it related to the choice of synchronization method and can it be suppressed by a modification of the method? If the answer is positive, then what are the relationships between the properties of a dynamical system and the level of noise at which the suppression of this sensitivity is still possible? What are particular methods to achieve synchronization stable to the presence of noise? In this paper we present the analysis of this issue from the standpoint of information theory. From this viewpoint the fundamental reason for this sensitivity is the fact that the chaotic signal contains information which requires a certain minimal threshold signal-to-noise ratio for transmission. Only in this case high-quality synchronization is transmitted (coded) optimally. Otherwise the threshold level can be much higher.","PeriodicalId":375963,"journal":{"name":"Signals, Circuits and Systems, 2003. SCS 2003. International Symposium on","volume":"54 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":"127580570","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
Short-term load forecasting using a chaotic time series 基于混沌时间序列的短期负荷预测
Signals, Circuits and Systems, 2003. SCS 2003. International Symposium on Pub Date : 2003-07-10 DOI: 10.1109/SCS.2003.1227083
S. P. Michanos, A. Tsakoumis, P. Fessas, S. Vladov, V. Mladenov
{"title":"Short-term load forecasting using a chaotic time series","authors":"S. P. Michanos, A. Tsakoumis, P. Fessas, S. Vladov, V. Mladenov","doi":"10.1109/SCS.2003.1227083","DOIUrl":"https://doi.org/10.1109/SCS.2003.1227083","url":null,"abstract":"A new approach to short-term load forecasting (STLF) in power systems is described in this paper. The method uses a chaotic time series and artificial neural network. The paper describes chaos time series analysis of daily power system peak loads. Nonlinear mapping of deterministic chaos is identified by multilayer perceptron (MLP). Using embedding dimension and delay time, an attractor in pseudo phase plane and an ANN model trained by this attractor are constructed. The proposed approach is demonstrated by an example.","PeriodicalId":375963,"journal":{"name":"Signals, Circuits and Systems, 2003. SCS 2003. International Symposium on","volume":"97 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":"117155663","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: 24
Differential implementations of threshold logic gates 阈值逻辑门的差分实现
Signals, Circuits and Systems, 2003. SCS 2003. International Symposium on Pub Date : 2003-07-10 DOI: 10.1109/SCS.2003.1227096
Valeriu Beiu, J. Quintana, M. J. Avedilo, Răzvan Andonie
{"title":"Differential implementations of threshold logic gates","authors":"Valeriu Beiu, J. Quintana, M. J. Avedilo, Răzvan Andonie","doi":"10.1109/SCS.2003.1227096","DOIUrl":"https://doi.org/10.1109/SCS.2003.1227096","url":null,"abstract":"This paper reviews differential implementations of threshold logic gates, detailing two classes of solutions: capacitive (switched capacitor and floating gate), and conductance/current.","PeriodicalId":375963,"journal":{"name":"Signals, Circuits and Systems, 2003. SCS 2003. International Symposium on","volume":"74 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":"124128952","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: 19
Synthesis of 3D surfaces using the wavelet transform 基于小波变换的三维曲面合成
Signals, Circuits and Systems, 2003. SCS 2003. International Symposium on Pub Date : 2003-07-10 DOI: 10.1109/SCS.2003.1227100
C. Rus, C. Rusu
{"title":"Synthesis of 3D surfaces using the wavelet transform","authors":"C. Rus, C. Rusu","doi":"10.1109/SCS.2003.1227100","DOIUrl":"https://doi.org/10.1109/SCS.2003.1227100","url":null,"abstract":"The aim of this work is to construct digital elevation models using different types of wavelets. For a clear representation of the surfaces we use real and smooth models. A compression ratio has been selected as measure of performances. Experimental results are also provided.","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":"130989373","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
Analysis of a joint action's opportunity of ultra-wideband and narrow-band communication systems in the same frequency band 同一频段的超宽带和窄带通信系统联合行动的机会分析
Signals, Circuits and Systems, 2003. SCS 2003. International Symposium on Pub Date : 2003-07-10 DOI: 10.1109/SCS.2003.1226962
I. Immoreev, A. A. Sudakov
{"title":"Analysis of a joint action's opportunity of ultra-wideband and narrow-band communication systems in the same frequency band","authors":"I. Immoreev, A. A. Sudakov","doi":"10.1109/SCS.2003.1226962","DOIUrl":"https://doi.org/10.1109/SCS.2003.1226962","url":null,"abstract":"A comparison of narrow-band (NB) and ultra-wideband (UWB) communication systems is presented. The requirements to standards on restrictions of a frequency band and radiated emission of UWB and NB systems are surveyed. The analysis of an electromagnetic compatibility (EMC) of NB and UWB systems is carried out. The example of parameters' calculation of UWB communication system, operating in the same frequency band as the NB systems, is given. The expediency of joint application of both systems is shown.","PeriodicalId":375963,"journal":{"name":"Signals, Circuits and Systems, 2003. SCS 2003. International Symposium on","volume":"43 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":"126772322","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: 4
Circuits and methods for measurement the structures with distributed constants 分布常数结构的测量电路与方法
Signals, Circuits and Systems, 2003. SCS 2003. International Symposium on Pub Date : 2003-07-10 DOI: 10.1109/SCS.2003.1227081
N. S. Dimitrachi, V. I. Nastas
{"title":"Circuits and methods for measurement the structures with distributed constants","authors":"N. S. Dimitrachi, V. I. Nastas","doi":"10.1109/SCS.2003.1227081","DOIUrl":"https://doi.org/10.1109/SCS.2003.1227081","url":null,"abstract":"An original method is examined for measuring the structures with distributed constants physically inaccessible to direct connection in the measured chain. This paper also explained the principles of the method and its mathematical bases and analyzed the errors and the possibilities.","PeriodicalId":375963,"journal":{"name":"Signals, Circuits and Systems, 2003. SCS 2003. International Symposium on","volume":"35 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":"121682817","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
A low noise-high counting rate readout system for X-ray imaging applications 用于x射线成像应用的低噪声、高计数率读出系统
Signals, Circuits and Systems, 2003. SCS 2003. International Symposium on Pub Date : 2003-07-10 DOI: 10.1109/SCS.2003.1227064
E. Zervakis, D. Loukas, N. Haralabidis, A. Pavlidis
{"title":"A low noise-high counting rate readout system for X-ray imaging applications","authors":"E. Zervakis, D. Loukas, N. Haralabidis, A. Pavlidis","doi":"10.1109/SCS.2003.1227064","DOIUrl":"https://doi.org/10.1109/SCS.2003.1227064","url":null,"abstract":"A system for processing signals from direct photon conversion sensors has been developed with the aim to be used for applications in X-ray imaging. The system consists of a mixed analog-digital ASIC and a digital 32-channels binary counter ASIC. The digital chips can be daisy-chained. In this way a system with high number of readout channels can be constructed. A custom made PCI card is also developed in order to control the operation of the whole system. The system is intended to operate with CdTe sensors in a luggage inspection system. The first experimental results including overall noise and counting rate are reported here.","PeriodicalId":375963,"journal":{"name":"Signals, Circuits and Systems, 2003. SCS 2003. International Symposium on","volume":"254 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":"114445006","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
An area-efficient low-power SC integrator for very high resolution ADCS 用于高分辨率adc的面积效率低功耗SC积分器
Signals, Circuits and Systems, 2003. SCS 2003. International Symposium on Pub Date : 2003-07-10 DOI: 10.1109/SCS.2003.1227065
H. Zare-Hoseini, M. Azizi, O. Shoaei
{"title":"An area-efficient low-power SC integrator for very high resolution ADCS","authors":"H. Zare-Hoseini, M. Azizi, O. Shoaei","doi":"10.1109/SCS.2003.1227065","DOIUrl":"https://doi.org/10.1109/SCS.2003.1227065","url":null,"abstract":"In this paper, a very area-efficient low-noise low-power correlated double sampled integrator has been presented. A fully differential class AB op-amp with preamplifier is designed with gain of 85dB, bandwidth of 12 Mrad/s and overall input referred noise floor of -171 dB. For attenuating the integrator's op-amp thermal noise, the input transconductance is kept as large as needed and also the bandwidth of the op-amp is decreased as much as possible without the need for large compensation capacitors as in the ordinary topologies are used. The integrator is used in the front-end of a 24 bit, fourth-order single-loop Delta-Sigma modulator for a bandwidth of 1000 Rad/s. The integrator power consumption is only 2.8 mW with a single 3.0V supply in 0.6-μm CMOS technology.","PeriodicalId":375963,"journal":{"name":"Signals, Circuits and Systems, 2003. SCS 2003. International Symposium on","volume":"45 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":"124062203","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
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