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2007 18th European Conference on Circuit Theory and Design最新文献

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High speed galois fields GF(2m) multipliers 高速伽罗瓦场GF(2m)乘法器
2007 18th European Conference on Circuit Theory and Design Pub Date : 2007-08-01 DOI: 10.1109/ECCTD.2007.4529634
N. Petra, D. Caro, A. Strollo
{"title":"High speed galois fields GF(2m) multipliers","authors":"N. Petra, D. Caro, A. Strollo","doi":"10.1109/ECCTD.2007.4529634","DOIUrl":"https://doi.org/10.1109/ECCTD.2007.4529634","url":null,"abstract":"In the paper a new GF(2m) multiplier for standard basis representation is developed. Proposed multiplier can be designed for every field GF(2m). Multiplier complexity and delay are analytically evaluated for many polynomial classes. Timing and area occupation performances of the proposed multiplier are compared with those of previously proposed solutions. The comparison shows that the proposed multiplier outperforms previous architectures for every considered GF(2m) field.","PeriodicalId":445822,"journal":{"name":"2007 18th European Conference on Circuit Theory and Design","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130993673","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
Switched-current filter optimization based on evolutionary algorithms 基于进化算法的开关电流滤波器优化
2007 18th European Conference on Circuit Theory and Design Pub Date : 2007-08-01 DOI: 10.1109/ECCTD.2007.4529655
Lukas Dolivka, J. Hospodka
{"title":"Switched-current filter optimization based on evolutionary algorithms","authors":"Lukas Dolivka, J. Hospodka","doi":"10.1109/ECCTD.2007.4529655","DOIUrl":"https://doi.org/10.1109/ECCTD.2007.4529655","url":null,"abstract":"This paper describes a way to eliminate the effect of circuit nonidealities on the magnitude frequency response of a circuit utilizing the switched-current technique. The circuit realizes a band-pass filter. The elimination is carried out by optimization based on one of evolutionary algorithms - the differential evolution. The nonidealities are nonzero on-state resistance of the switches and nonzero output conductance of the field-effect transistors implementing the current sources. It is shown that the filter with the current source transconductance values designed according to a common method for ideal components has a significantly different magnitude frequency response when the nonidealities are considered. Hence, the optimization is applied to finding suitable transconductance values so that the difference between the magnitude frequency responses of the ideal and nonideal filter is minimized.","PeriodicalId":445822,"journal":{"name":"2007 18th European Conference on Circuit Theory and Design","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130365756","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
PWL approximation of the Hindmarsh-Rose neuron model in view of its circuit implementation Hindmarsh-Rose神经元模型的PWL逼近及其电路实现
2007 18th European Conference on Circuit Theory and Design Pub Date : 2007-08-01 DOI: 10.1109/ECCTD.2007.4529737
F. Bizzarri, D. Linaro, M. Storace
{"title":"PWL approximation of the Hindmarsh-Rose neuron model in view of its circuit implementation","authors":"F. Bizzarri, D. Linaro, M. Storace","doi":"10.1109/ECCTD.2007.4529737","DOIUrl":"https://doi.org/10.1109/ECCTD.2007.4529737","url":null,"abstract":"A two-dimensional piecewise-linear approximation of the Hindmarsh-Rose neuron model is obtained, in view of its circuit implementation. The obtained approximation is checked by varying two bifurcation parameters. The brute-force two-dimensional bifurcation diagram of the original model is compared with the one of the piecewise-linear approximation, showing that the approximation is able to reproduce the main qualitative behaviours (quiescency, spiking, bursting, chaotic dynamics) of the original model.","PeriodicalId":445822,"journal":{"name":"2007 18th European Conference on Circuit Theory and Design","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123332094","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
Bioimpedance monitoring with improved accuracy using three-level stimulus 利用三电平刺激提高精度的生物阻抗监测
2007 18th European Conference on Circuit Theory and Design Pub Date : 2007-08-01 DOI: 10.1109/ECCTD.2007.4529620
T. Paavle, P. Annus, A. Kuusik, R. Land, M. Min
{"title":"Bioimpedance monitoring with improved accuracy using three-level stimulus","authors":"T. Paavle, P. Annus, A. Kuusik, R. Land, M. Min","doi":"10.1109/ECCTD.2007.4529620","DOIUrl":"https://doi.org/10.1109/ECCTD.2007.4529620","url":null,"abstract":"Operation principles, modeling, and practical design of a novel system for bioimpedance (BI) measurement and monitoring are introduced in this paper. The system employs excitation and reference signals in a form of three-level rectangular waveforms with specially shortened duty cycles for eliminating some higher harmonics from the measured response. It enables to decrease systematic errors and ensures simplicity and power efficiency for wearable devices at the same time. The system is designed as a four-channel instrument, while both, the analog and digital approaches are discussed.","PeriodicalId":445822,"journal":{"name":"2007 18th European Conference on Circuit Theory and Design","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123354155","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
Multi-user detection for an asynchronous differential chaos-based multiple access system 基于异步差分混沌的多址系统的多用户检测
2007 18th European Conference on Circuit Theory and Design Pub Date : 2007-08-01 DOI: 10.1109/ECCTD.2007.4529698
M. Coulon, D. Roviras
{"title":"Multi-user detection for an asynchronous differential chaos-based multiple access system","authors":"M. Coulon, D. Roviras","doi":"10.1109/ECCTD.2007.4529698","DOIUrl":"https://doi.org/10.1109/ECCTD.2007.4529698","url":null,"abstract":"This paper deals with the bit detection for an asynchronous transmission using a chaos-based multiple access system. Two kinds of detectors are studied: those based on a LMMSE approach, including an adaptive detector, and those based on the estimation of the users' chaotic sequences. Theoretical and simulated performance results are provided, which show the superiority of the first detectors, even when few a priori information concerning the channels is available.","PeriodicalId":445822,"journal":{"name":"2007 18th European Conference on Circuit Theory and Design","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126369285","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
A readout system for inductive position sensors 感应式位置传感器的读出系统
2007 18th European Conference on Circuit Theory and Design Pub Date : 2007-08-01 DOI: 10.1109/ECCTD.2007.4529757
M. Rahal, A. Demosthenous
{"title":"A readout system for inductive position sensors","authors":"M. Rahal, A. Demosthenous","doi":"10.1109/ECCTD.2007.4529757","DOIUrl":"https://doi.org/10.1109/ECCTD.2007.4529757","url":null,"abstract":"The readout electronics for contact-less inductive position sensors are currently based on discrete solutions. To enhance overall system performance, the implementation of the readout electronics into a single ASIC is desirable. This paper discusses the key system blocks of the analog front-end. Two variants of the mixer architecture for the synchronous detection are examined in terms of their ability to reject phase-sensitive offsets. Simulated results using a 0.35-mum CMOS process technology are presented.","PeriodicalId":445822,"journal":{"name":"2007 18th European Conference on Circuit Theory and Design","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122274304","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
Low quiescent current high speed amplifier for LCD column driver 用于LCD列驱动器的低静态电流高速放大器
2007 18th European Conference on Circuit Theory and Design Pub Date : 2007-08-01 DOI: 10.1109/ECCTD.2007.4529648
Salvatore di Fazio, F. Pulvirenti, T. Signorelli, Christian Lao, S. Pennisi
{"title":"Low quiescent current high speed amplifier for LCD column driver","authors":"Salvatore di Fazio, F. Pulvirenti, T. Signorelli, Christian Lao, S. Pennisi","doi":"10.1109/ECCTD.2007.4529648","DOIUrl":"https://doi.org/10.1109/ECCTD.2007.4529648","url":null,"abstract":"The design of a very low-current transconductance operational amplifier specifically optimized for a switched-capacitor LCD column driver is presented. Despite its stringent standby current requirements (lower than 700 nA), the amplifier exhibits a DC gain of about 80 dB and, working in class AB, provides a slew rate greater than 20 V/mus under a load capacitance of 500 fF. The gain-bandwidth product and phase margin are about 2 MHz and 70deg. With exception of the DC gain, these performances represent a major improvement with respect to comparable solutions, and are obtained while halving the area occupation.","PeriodicalId":445822,"journal":{"name":"2007 18th European Conference on Circuit Theory and Design","volume":"168 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121715614","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
Design of bio-inspired network models for spatio-temporal pattern identification 时空模式识别的仿生网络模型设计
2007 18th European Conference on Circuit Theory and Design Pub Date : 2007-08-01 DOI: 10.1109/ECCTD.2007.4529594
F. Corinto, V. Lanza, M. Gilli
{"title":"Design of bio-inspired network models for spatio-temporal pattern identification","authors":"F. Corinto, V. Lanza, M. Gilli","doi":"10.1109/ECCTD.2007.4529594","DOIUrl":"https://doi.org/10.1109/ECCTD.2007.4529594","url":null,"abstract":"Many mathematical models have been proposed to describe systems that present spatio-temporal patterns. Most of them are mainly phase models, where each oscillating cell is characterized in terms of a sole phase variable. It is well known that under suitable assumptions the global dynamics of networks composed by oscillators with weak connections can be investigated through phase models. In particular, the joint application of Malkin's Theorem and the describing function technique allows one to obtain an analytical approximation of the phase deviation equation for weakly connected networks that admit of a Lur'e representation. The aim of this manuscript is to provide a method for identifying the conditions under which weakly connected oscillatory systems exhibit given spatio-temporal patterns and to exploit the results for designing the corresponding networks.","PeriodicalId":445822,"journal":{"name":"2007 18th European Conference on Circuit Theory and Design","volume":"52 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121344905","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 1V low power sigma-delta modulator based on floating gate MOS transistors 一种基于浮栅MOS晶体管的1V低功耗sigma-delta调制器
2007 18th European Conference on Circuit Theory and Design Pub Date : 2007-08-01 DOI: 10.1109/ECCTD.2007.4529533
Min Xu, E. Rodríguez-Villegas
{"title":"A 1V low power sigma-delta modulator based on floating gate MOS transistors","authors":"Min Xu, E. Rodríguez-Villegas","doi":"10.1109/ECCTD.2007.4529533","DOIUrl":"https://doi.org/10.1109/ECCTD.2007.4529533","url":null,"abstract":"This paper presents a novel low voltage and low power continuous time sigma-delta modulator based on the floating gate MOS (FGMOS) transistors. The performance of the two main building blocks in the modulator, the continuous time integrator and the comparator, are achieved by exploiting the benefits of the FGMOS devices. It is proven that using FGMOS devices improves the circuit linearity and hence increases the dynamic range. The modulator, designed in AMS 0.35 mum technology, works at a supply voltage of 1 V, exhibits a dynamic range (DR) of 67 dB, signal-to-noise- ratio (SNR) of 63 dB and signal-to-noise-and-distortion-ratio (SNDR) of 60 dB of 2 kHz Bandwidth (BW), with a power consumption of 5 muW.","PeriodicalId":445822,"journal":{"name":"2007 18th European Conference on Circuit Theory and Design","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131510542","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
Improved noise wave model of microwave FETs based on artificial neural networks 基于人工神经网络的微波场效应管噪声波模型的改进
2007 18th European Conference on Circuit Theory and Design Pub Date : 2007-08-01 DOI: 10.1109/ECCTD.2007.4529708
Z. Marinković, O. Pronić-Rančić, V. Markovic
{"title":"Improved noise wave model of microwave FETs based on artificial neural networks","authors":"Z. Marinković, O. Pronić-Rančić, V. Markovic","doi":"10.1109/ECCTD.2007.4529708","DOIUrl":"https://doi.org/10.1109/ECCTD.2007.4529708","url":null,"abstract":"An application of artificial neural networks for accuracy improving of the microwave FET transistor noise modeling is presented in this paper. The proposed model is based on a basic transistor noise wave model whose noise wave temperatures are assumed to be constant over the operating frequency range. An artificial neural network is included in the model in order to make values of the noise parameters obtained by the original wave model more accurate.","PeriodicalId":445822,"journal":{"name":"2007 18th European Conference on Circuit Theory and Design","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121864469","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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