Pub Date : 2010-12-17DOI: 10.1109/SM2ACD.2010.5672313
D. Biolek, V. Biolková, Z. Kolka
On the basis of the modified nodal analysis, universal matrices-stamps are defined for modeling several types of current conveyor. From these stamps, the so-called Dragonfly Mason-Coates' graphs are derived for a fast hand-and-paper symbolic analysis of current-conveyor circuits.
{"title":"Dragonfly M-C graphs for symbolic analysis of current-conveyor circuits","authors":"D. Biolek, V. Biolková, Z. Kolka","doi":"10.1109/SM2ACD.2010.5672313","DOIUrl":"https://doi.org/10.1109/SM2ACD.2010.5672313","url":null,"abstract":"On the basis of the modified nodal analysis, universal matrices-stamps are defined for modeling several types of current conveyor. From these stamps, the so-called Dragonfly Mason-Coates' graphs are derived for a fast hand-and-paper symbolic analysis of current-conveyor circuits.","PeriodicalId":442381,"journal":{"name":"2010 XIth International Workshop on Symbolic and Numerical Methods, Modeling and Applications to Circuit Design (SM2ACD)","volume":"20 Suppl 2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123590526","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}
Pub Date : 2010-12-17DOI: 10.1109/SM2ACD.2010.5672324
J. Hospodka, J. Bicak
This paper presents a special package for Maple program designed for electric and electronic circuit analysis. The package contains functions for analysis of continuous-time linear and nonlinear circuits as well as periodically switched linear circuits. The method of analysis is based on modified nodal voltages method. Results can be obtained in symbolic or semisymbolic form. This contribution introduces possibilities of the package for nonlinear circuit symbolic analyses. Simplification of active element models can be made by special package option to obtain useful results for dominant circuit behavior. This is demonstrated on elementary examples of nonlinear DC analysis and AC analysis of linearized circuit. The package was developed at the Department of Circuit Theory, for research and teaching support.
{"title":"Symbolic analysis of nonlinear electronic circuits by PraCAn package in Maple program","authors":"J. Hospodka, J. Bicak","doi":"10.1109/SM2ACD.2010.5672324","DOIUrl":"https://doi.org/10.1109/SM2ACD.2010.5672324","url":null,"abstract":"This paper presents a special package for Maple program designed for electric and electronic circuit analysis. The package contains functions for analysis of continuous-time linear and nonlinear circuits as well as periodically switched linear circuits. The method of analysis is based on modified nodal voltages method. Results can be obtained in symbolic or semisymbolic form. This contribution introduces possibilities of the package for nonlinear circuit symbolic analyses. Simplification of active element models can be made by special package option to obtain useful results for dominant circuit behavior. This is demonstrated on elementary examples of nonlinear DC analysis and AC analysis of linearized circuit. The package was developed at the Department of Circuit Theory, for research and teaching support.","PeriodicalId":442381,"journal":{"name":"2010 XIth International Workshop on Symbolic and Numerical Methods, Modeling and Applications to Circuit Design (SM2ACD)","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117037248","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}
Pub Date : 2010-12-17DOI: 10.1109/SM2ACD.2010.5672308
L. Dumitriu, M. Iordache, L. Mandache
The simulation of large-scale analog circuits is very expensive. Instead of the circuit complex model, reduction of the computing effort implies using a macromodel capable to capture the behaviors of the original circuit while preserving its essential properties. Building such a model is based on a simplified and unitary description of the circuit, by establishing a simple relationship between the input/output variables. In this paper, the model order reduction techniques based on the projection method in Krylov subspace are presented in two implementations: on the state equations and on the semi-sate equations of the analog circuits.
{"title":"Reduced-order modeling of MIMO systems","authors":"L. Dumitriu, M. Iordache, L. Mandache","doi":"10.1109/SM2ACD.2010.5672308","DOIUrl":"https://doi.org/10.1109/SM2ACD.2010.5672308","url":null,"abstract":"The simulation of large-scale analog circuits is very expensive. Instead of the circuit complex model, reduction of the computing effort implies using a macromodel capable to capture the behaviors of the original circuit while preserving its essential properties. Building such a model is based on a simplified and unitary description of the circuit, by establishing a simple relationship between the input/output variables. In this paper, the model order reduction techniques based on the projection method in Krylov subspace are presented in two implementations: on the state equations and on the semi-sate equations of the analog circuits.","PeriodicalId":442381,"journal":{"name":"2010 XIth International Workshop on Symbolic and Numerical Methods, Modeling and Applications to Circuit Design (SM2ACD)","volume":"57 7","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120883527","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}
Pub Date : 2010-12-17DOI: 10.1109/SM2ACD.2010.5672361
Mehdi Ali, A. Kachouri, M. Samet
Nowadays, Sensor network is extensively practical in numerous fields including general engineering, agriculture and environmental monitoring, health monitoring and surgery [1].
目前，传感器网络已广泛应用于一般工程、农业和环境监测、健康监测和外科等众多领域。
{"title":"Network sensor miniature antenna","authors":"Mehdi Ali, A. Kachouri, M. Samet","doi":"10.1109/SM2ACD.2010.5672361","DOIUrl":"https://doi.org/10.1109/SM2ACD.2010.5672361","url":null,"abstract":"Nowadays, Sensor network is extensively practical in numerous fields including general engineering, agriculture and environmental monitoring, health monitoring and surgery [1].","PeriodicalId":442381,"journal":{"name":"2010 XIth International Workshop on Symbolic and Numerical Methods, Modeling and Applications to Circuit Design (SM2ACD)","volume":"55 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117030528","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}
Pub Date : 2010-12-17DOI: 10.1109/SM2ACD.2010.5672320
P. Rakovic, M. Daković, L. Stanković, Thayaparan Thayananthan
An algorithm for radar signal detection method based on a time-frequency representation (TFR) and Viterbi algorithm (VA) is proposed. Two TFR methods are considered, Short-time Fourier Transform (STFT) and S-method (SM). Performance and detection ability of the proposed algorithm was investigated on real radar signals of a single manuvering target with added Gaussian noise and signal-to-noise ratio from −15 dB to −2 dB. The results show that the proposed algorithm works well even in very low SNR values.
提出了一种基于时频表示和Viterbi算法的雷达信号检测方法。考虑了短时傅里叶变换(STFT)和s -法(SM)两种TFR方法。在加高斯噪声、信噪比为- 15 dB ~ - 2 dB的单机动目标真实雷达信号中，研究了该算法的性能和检测能力。结果表明，即使在很低的信噪比下，该算法也能很好地工作。
{"title":"An algorithm for detecting a maneuvering target based on TFR and Viterbi algorithm","authors":"P. Rakovic, M. Daković, L. Stanković, Thayaparan Thayananthan","doi":"10.1109/SM2ACD.2010.5672320","DOIUrl":"https://doi.org/10.1109/SM2ACD.2010.5672320","url":null,"abstract":"An algorithm for radar signal detection method based on a time-frequency representation (TFR) and Viterbi algorithm (VA) is proposed. Two TFR methods are considered, Short-time Fourier Transform (STFT) and S-method (SM). Performance and detection ability of the proposed algorithm was investigated on real radar signals of a single manuvering target with added Gaussian noise and signal-to-noise ratio from −15 dB to −2 dB. The results show that the proposed algorithm works well even in very low SNR values.","PeriodicalId":442381,"journal":{"name":"2010 XIth International Workshop on Symbolic and Numerical Methods, Modeling and Applications to Circuit Design (SM2ACD)","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125888850","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}
Pub Date : 2010-12-17DOI: 10.1109/SM2ACD.2010.5672334
A. Ebrahimi, H. M. Naimi
In this paper, a new low voltage topology for analog multiplier is presented. The circuit can be used with single low-power supply. The complete circuit has only twelve transistors; therefore, it satisfies the need for compact sub-circuit in analog VLSI systems. The mathematical discussion on the power consumption, total harmonic distortion and other features of the circuit and also simulation results in 0.18µm CMOS technology are presented. The results show 113µW power consumption with 1.2V single supply, 1.1% total harmonic distortion (THD) and 1GHz band-width.
{"title":"A 1.2V single supply and low power, CMOS four-quadrant analog multiplier","authors":"A. Ebrahimi, H. M. Naimi","doi":"10.1109/SM2ACD.2010.5672334","DOIUrl":"https://doi.org/10.1109/SM2ACD.2010.5672334","url":null,"abstract":"In this paper, a new low voltage topology for analog multiplier is presented. The circuit can be used with single low-power supply. The complete circuit has only twelve transistors; therefore, it satisfies the need for compact sub-circuit in analog VLSI systems. The mathematical discussion on the power consumption, total harmonic distortion and other features of the circuit and also simulation results in 0.18µm CMOS technology are presented. The results show 113µW power consumption with 1.2V single supply, 1.1% total harmonic distortion (THD) and 1GHz band-width.","PeriodicalId":442381,"journal":{"name":"2010 XIth International Workshop on Symbolic and Numerical Methods, Modeling and Applications to Circuit Design (SM2ACD)","volume":"58 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124357103","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}
Pub Date : 2010-12-17DOI: 10.1109/SM2ACD.2010.5672363
S. Sahnoun, A. Fakhfakh, N. Masmoudi, H. Levi
The purpose of this work is to optimize the design of an MSK modulator able to operate at a high data modulation. The optimization approach applies an experimental design methodology having in view to minimize the modulator response time. This methodology is traditionally applied by agronomists and chemists. We show how it can be perfectly suited to optimize electronic designs.
{"title":"High level modelling and optimization of an MSK modulator with experimental design methodology","authors":"S. Sahnoun, A. Fakhfakh, N. Masmoudi, H. Levi","doi":"10.1109/SM2ACD.2010.5672363","DOIUrl":"https://doi.org/10.1109/SM2ACD.2010.5672363","url":null,"abstract":"The purpose of this work is to optimize the design of an MSK modulator able to operate at a high data modulation. The optimization approach applies an experimental design methodology having in view to minimize the modulator response time. This methodology is traditionally applied by agronomists and chemists. We show how it can be perfectly suited to optimize electronic designs.","PeriodicalId":442381,"journal":{"name":"2010 XIth International Workshop on Symbolic and Numerical Methods, Modeling and Applications to Circuit Design (SM2ACD)","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124363338","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}
Pub Date : 2010-12-17DOI: 10.1109/SM2ACD.2010.5672331
S. Akkar, F. Harabi, A. Gharsallah
In this paper, a special design of Uniform Concentric Circular Array (UCCA) is proposed to improve directions of arrival (DoAs) estimation accuracy in fully correlated sources situation. The Centro-symmetry propriety of the introduced antennas shape, as well as each of its subarrays, allow us to develop a Modified Forward/Backward Spatial Smoothing technique (MFBSS) to remove signals' coherence. The excellent performances of the uniform circular geometry are used to provide a good and uniform DoAs estimation in all of the azimuth coverage. Simulation results, using the MUSIC algorithm, show that applying the MFBSS technique with the proposed antenna array shape yields significant improved performances in DoAs estimation especially in highly correlated sources situations.
{"title":"Concentric Circular Array for directions of arival estimation of coherent sources with MUSIC algorithm","authors":"S. Akkar, F. Harabi, A. Gharsallah","doi":"10.1109/SM2ACD.2010.5672331","DOIUrl":"https://doi.org/10.1109/SM2ACD.2010.5672331","url":null,"abstract":"In this paper, a special design of Uniform Concentric Circular Array (UCCA) is proposed to improve directions of arrival (DoAs) estimation accuracy in fully correlated sources situation. The Centro-symmetry propriety of the introduced antennas shape, as well as each of its subarrays, allow us to develop a Modified Forward/Backward Spatial Smoothing technique (MFBSS) to remove signals' coherence. The excellent performances of the uniform circular geometry are used to provide a good and uniform DoAs estimation in all of the azimuth coverage. Simulation results, using the MUSIC algorithm, show that applying the MFBSS technique with the proposed antenna array shape yields significant improved performances in DoAs estimation especially in highly correlated sources situations.","PeriodicalId":442381,"journal":{"name":"2010 XIth International Workshop on Symbolic and Numerical Methods, Modeling and Applications to Circuit Design (SM2ACD)","volume":"268 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132448932","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}
Pub Date : 2010-12-17DOI: 10.1109/SM2ACD.2010.5672325
M. L. Tounsi, C. Boularak, M. Yagoub
In this paper, a hybrid-mode method is presented for an efficient propagation parameter computation of a large variety of shielded coupled planar circuits. Conductor strips are assumed to be embedded in a multilayered isotropic and/or anisotropic medium. The proposed technique is based on extension of the spectral domain approach and provides accurate expressions for computing the dyadic Green's functions. Furthermore, the effect of anisotropy is investigated. Some particular multilayered structures are analyzed, which could be applied to the design of directional couplers and filters‥ Numerical results are discussed and compared with the published data.
{"title":"Enhanced fullwave approach for accurate parameter computation of multilayer microwave couplers including anisotropic substrates","authors":"M. L. Tounsi, C. Boularak, M. Yagoub","doi":"10.1109/SM2ACD.2010.5672325","DOIUrl":"https://doi.org/10.1109/SM2ACD.2010.5672325","url":null,"abstract":"In this paper, a hybrid-mode method is presented for an efficient propagation parameter computation of a large variety of shielded coupled planar circuits. Conductor strips are assumed to be embedded in a multilayered isotropic and/or anisotropic medium. The proposed technique is based on extension of the spectral domain approach and provides accurate expressions for computing the dyadic Green's functions. Furthermore, the effect of anisotropy is investigated. Some particular multilayered structures are analyzed, which could be applied to the design of directional couplers and filters‥ Numerical results are discussed and compared with the published data.","PeriodicalId":442381,"journal":{"name":"2010 XIth International Workshop on Symbolic and Numerical Methods, Modeling and Applications to Circuit Design (SM2ACD)","volume":"273 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132925144","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}
Pub Date : 2010-12-17DOI: 10.1109/SM2ACD.2010.5672359
W. Gharibi, V. Hahanov
The testing and verification technology for system HDL models, focused to the significant improvement of the quality of design components for digital systems on chips and reduction the development time (time-to-market) by using the simulation environment, testable analysis of the logical structure HDL-program and the optimal placement of assertion engine is proposed.
{"title":"SoC design verification infrastructure","authors":"W. Gharibi, V. Hahanov","doi":"10.1109/SM2ACD.2010.5672359","DOIUrl":"https://doi.org/10.1109/SM2ACD.2010.5672359","url":null,"abstract":"The testing and verification technology for system HDL models, focused to the significant improvement of the quality of design components for digital systems on chips and reduction the development time (time-to-market) by using the simulation environment, testable analysis of the logical structure HDL-program and the optimal placement of assertion engine is proposed.","PeriodicalId":442381,"journal":{"name":"2010 XIth International Workshop on Symbolic and Numerical Methods, Modeling and Applications to Circuit Design (SM2ACD)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123087310","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}
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