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2001 IEEE Pacific Rim Conference on Communications, Computers and Signal Processing (IEEE Cat. No.01CH37233)最新文献

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Complex Chebyshev approximation to stable IIR filters design 稳定IIR滤波器的复切比雪夫近似设计
2001 IEEE Pacific Rim Conference on Communications, Computers and Signal Processing (IEEE Cat. No.01CH37233) Pub Date : 2001-08-26 DOI: 10.1109/PACRIM.2001.953695
T. Sugita, N. Aikawa
{"title":"Complex Chebyshev approximation to stable IIR filters design","authors":"T. Sugita, N. Aikawa","doi":"10.1109/PACRIM.2001.953695","DOIUrl":"https://doi.org/10.1109/PACRIM.2001.953695","url":null,"abstract":"This paper presents a minimax design method of stable IIR digital filters with an arbitrary magnitude and phase response using the successive projection (SP) method. Because the design of IIR filters generally results in a complex approximation problem, the complex approximation problem is converted into a real approximation problem and its problem is solved using the SP method. Then, we use the implications of Rouche's theorem to modify the SP method in such a way that a constraint on the maximum pole radius can be incorporated. Hence, the filters obtained can be guaranteed to be stable and are optimum in the Chebyshev sense.","PeriodicalId":261724,"journal":{"name":"2001 IEEE Pacific Rim Conference on Communications, Computers and Signal Processing (IEEE Cat. No.01CH37233)","volume":"19 2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133375273","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
The synchronization without biased error in spatiotemporal chaos 时空混沌中无偏差的同步
2001 IEEE Pacific Rim Conference on Communications, Computers and Signal Processing (IEEE Cat. No.01CH37233) Pub Date : 2001-08-26 DOI: 10.1109/PACRIM.2001.953511
Jianbo Liu, Decun Dong, Wentao Song, Shujing Zhang, Qigang Zhou
{"title":"The synchronization without biased error in spatiotemporal chaos","authors":"Jianbo Liu, Decun Dong, Wentao Song, Shujing Zhang, Qigang Zhou","doi":"10.1109/PACRIM.2001.953511","DOIUrl":"https://doi.org/10.1109/PACRIM.2001.953511","url":null,"abstract":"The synchronization of spatiotemporal chaos is discussed in this paper, and the in-phase and anti-phase synchronization of spatiotemporal chaos without biased error is proposed. The synchronization can be achieved by embedding the transmitted signal in spatiotemporal chaos, and there is no transient once synchronization is attained.. The sensitivity of synchronization performance to the system parameters is analyzed via simulation. These properties make this kind of synchronization potentially useful in digital communication.","PeriodicalId":261724,"journal":{"name":"2001 IEEE Pacific Rim Conference on Communications, Computers and Signal Processing (IEEE Cat. No.01CH37233)","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132497369","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 new adaptive filter structure: comparative study of NLMS, DST-LMS and DCT-LMS schemes applied to electromyographic signal modelling 一种新的自适应滤波结构:NLMS、DST-LMS和DCT-LMS方案在肌电信号建模中的比较研究
2001 IEEE Pacific Rim Conference on Communications, Computers and Signal Processing (IEEE Cat. No.01CH37233) Pub Date : 2001-08-26 DOI: 10.1109/PACRIM.2001.953693
A. Veiga, Y. Iano, G. Carrijo
{"title":"A new adaptive filter structure: comparative study of NLMS, DST-LMS and DCT-LMS schemes applied to electromyographic signal modelling","authors":"A. Veiga, Y. Iano, G. Carrijo","doi":"10.1109/PACRIM.2001.953693","DOIUrl":"https://doi.org/10.1109/PACRIM.2001.953693","url":null,"abstract":"The goal of this work is to present a transform domain algorithm called discrete sine transform with axis rotation LMS adaptive filter. Based on the least-mean-square (LMS) and discrete sine transform with axis rotation (DSTr) equations, a proposed algorithm is deduced. The authors compare its performance, through computer simulations, with normalized LMS (NLMS), discrete sine transform LMS (DST-LMS) and discrete cosine transform LMS (DCT-LMS) schemes. Another goal of this paper is the study of electromyographic (EMG) signal modeling using the DSTr-LMS algorithm. This is a type of signal that can be represented by an autoregressive model of the fourth order. Using an adaptive filter with adequate order as a predictor, its coefficients can be viewed as a representation of this signal. The learning curves of DSTr-LMS exhibit a better convergence rate and equivalent values of steady state mean-square error (MSE) if compared with learning curves of the other algorithms already mentioned. Therefore, the authors conclude that this set of coefficients is a good representation of this type of signal.","PeriodicalId":261724,"journal":{"name":"2001 IEEE Pacific Rim Conference on Communications, Computers and Signal Processing (IEEE Cat. No.01CH37233)","volume":"61 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114952876","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
A new adaptive forward error correction scheme for ATM and wireless ATM networks 一种新的ATM和无线ATM网络自适应前向纠错方案
2001 IEEE Pacific Rim Conference on Communications, Computers and Signal Processing (IEEE Cat. No.01CH37233) Pub Date : 2001-08-26 DOI: 10.1109/PACRIM.2001.953562
K. Srinivas, C. Rangan, S. Raghavan
{"title":"A new adaptive forward error correction scheme for ATM and wireless ATM networks","authors":"K. Srinivas, C. Rangan, S. Raghavan","doi":"10.1109/PACRIM.2001.953562","DOIUrl":"https://doi.org/10.1109/PACRIM.2001.953562","url":null,"abstract":"Wireless asynchronous transfer mode (WATM) systems have been proposed for future broadband multimedia personal communication. The errors in the wireless channel are characterized by burstier error patterns which are time varying in nature. The cell losses in asynchronous transfer mode (ATM) occur mostly due to buffer overflow resulting in burst cell losses. Most of the existing error correcting codes do not adequately account for the burst errors and concentrate only on cell errors rather than cell losses. Hence, they are not suitable for time-varying channels like WATM. Efficient error control for the time-varying channel can be realized with an adaptive coding scheme, which adjusts according to the network characteristics.","PeriodicalId":261724,"journal":{"name":"2001 IEEE Pacific Rim Conference on Communications, Computers and Signal Processing (IEEE Cat. No.01CH37233)","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114474260","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
Adaptive motion estimation algorithm using spatial and temporal correlation 基于时空相关的自适应运动估计算法
2001 IEEE Pacific Rim Conference on Communications, Computers and Signal Processing (IEEE Cat. No.01CH37233) Pub Date : 2001-08-26 DOI: 10.1109/PACRIM.2001.953672
Jong-Hyun Lim, Hae-Wook Choi
{"title":"Adaptive motion estimation algorithm using spatial and temporal correlation","authors":"Jong-Hyun Lim, Hae-Wook Choi","doi":"10.1109/PACRIM.2001.953672","DOIUrl":"https://doi.org/10.1109/PACRIM.2001.953672","url":null,"abstract":"Block motion estimation using full search is computationally intensive. Previously proposed fast search algorithms limit the size of search window, the size of sequence (usually QCIF format) and search locations. These algorithms do not fit for sequences having large motion or larger picture size. In this paper, we present a new fast and efficient search algorithm for block motion estimation that produce better performance in quality than TSS and 4SS and less computational time. The proposed algorithm is based on the idea of selecting an adaptive search window per macro-block using 3 spatial macro-blocks and one temporal macro-block with the distance criterion without computational burden. The result of simulation shows not only better quality of pictures than that of TSS and 4SS, but also faster execution time. Therefore it can be good solution for the real time multimedia mobile systems.","PeriodicalId":261724,"journal":{"name":"2001 IEEE Pacific Rim Conference on Communications, Computers and Signal Processing (IEEE Cat. No.01CH37233)","volume":"57 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134217990","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: 10
Analytical modeling of a fat-tree network with buffered switches 带缓冲交换机的胖树网络的分析建模
2001 IEEE Pacific Rim Conference on Communications, Computers and Signal Processing (IEEE Cat. No.01CH37233) Pub Date : 2001-08-26 DOI: 10.1109/PACRIM.2001.953553
S. Cho, M.K. Yang, J. Lee
{"title":"Analytical modeling of a fat-tree network with buffered switches","authors":"S. Cho, M.K. Yang, J. Lee","doi":"10.1109/PACRIM.2001.953553","DOIUrl":"https://doi.org/10.1109/PACRIM.2001.953553","url":null,"abstract":"A performance analysis model of a fat-tree network with the multiple buffered crossbar switches is proposed and examined. The buffered switch technique is well known to solve the data collision problem in the switch network. The proposed evaluation model is developed by formulating the transfer pattern of data packets in a switch. The performance of the multiple-buffered a/spl times/b crossbar switch is then analyzed. The steady state probability concept is used to simplify the analyzing processes. The proposed model takes simple and primitive switch networks, i.e., no flow control and drop packet, to demonstrate analysis procedures clearly. It, however, can not only be applied to any other complicated modern switch networks that have intelligent flow control but also estimate the performance of any size networks with multiple-buffered switches. To validate the proposed analysis model, the simulation is carried out on the various sizes of fat-tree networks that use the multiple buffered crossbar switches.","PeriodicalId":261724,"journal":{"name":"2001 IEEE Pacific Rim Conference on Communications, Computers and Signal Processing (IEEE Cat. No.01CH37233)","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134593291","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
Observing the state of a linear time-invariant system: a frequency domain approach 观察线性时不变系统的状态:一种频域方法
2001 IEEE Pacific Rim Conference on Communications, Computers and Signal Processing (IEEE Cat. No.01CH37233) Pub Date : 2001-08-26 DOI: 10.1109/PACRIM.2001.953661
H. Marquez
{"title":"Observing the state of a linear time-invariant system: a frequency domain approach","authors":"H. Marquez","doi":"10.1109/PACRIM.2001.953661","DOIUrl":"https://doi.org/10.1109/PACRIM.2001.953661","url":null,"abstract":"A novel input-output approach to the problem of robust state estimation in the presence of model uncertainty as well as plant disturbance and sensor noise is considered. A new observer structure is introduced and shown to have advantages over the classical Luenberger observer. This structure is then used to solve the robust estimation problem in the H/sub /spl infin// framework.","PeriodicalId":261724,"journal":{"name":"2001 IEEE Pacific Rim Conference on Communications, Computers and Signal Processing (IEEE Cat. No.01CH37233)","volume":"65 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133878638","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
Mobile communication in power distribution application 移动通信在配电中的应用
2001 IEEE Pacific Rim Conference on Communications, Computers and Signal Processing (IEEE Cat. No.01CH37233) Pub Date : 2001-08-26 DOI: 10.1109/PACRIM.2001.953714
R. Cheung, Y. Fung, T. Ho
{"title":"Mobile communication in power distribution application","authors":"R. Cheung, Y. Fung, T. Ho","doi":"10.1109/PACRIM.2001.953714","DOIUrl":"https://doi.org/10.1109/PACRIM.2001.953714","url":null,"abstract":"This paper investigates how to interface the wireless application protocol (WAP) architecture to the SCADA system running distributed network protocol (DNP) in a power process plant. DNP is a well-developed protocol to be applied in the supervisory control and data acquisition (SCADA) system but the system control centre and remote terminal units (RTUs) are presently connected through a local area network. The conditions in a process plant are harsh and the site is remote. Resources for data communication are difficult to obtain under these conditions, thus, a wireless channel communication through a mobile phone is practical and efficient in a process plant environment. The mobile communication industries and the public have a strong interest in the WAP technology application in mobile phone networks and the WAP application programming interface (API) in power industry applications is one area that requires extensive investigation.","PeriodicalId":261724,"journal":{"name":"2001 IEEE Pacific Rim Conference on Communications, Computers and Signal Processing (IEEE Cat. No.01CH37233)","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133961973","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
Implementation of a microcontroller-based parameter estimator for a converter-driven DC motor system using General Hybrid Orthogonal Functions (GHOF) 基于通用混合正交函数(GHOF)的变换器驱动直流电机参数估计器的实现
2001 IEEE Pacific Rim Conference on Communications, Computers and Signal Processing (IEEE Cat. No.01CH37233) Pub Date : 2001-08-26 DOI: 10.1109/PACRIM.2001.953659
S. Nungam, S. Seejunfur
{"title":"Implementation of a microcontroller-based parameter estimator for a converter-driven DC motor system using General Hybrid Orthogonal Functions (GHOF)","authors":"S. Nungam, S. Seejunfur","doi":"10.1109/PACRIM.2001.953659","DOIUrl":"https://doi.org/10.1109/PACRIM.2001.953659","url":null,"abstract":"A microcontroller-based parameter estimator for a converter-driven DC motor is implemented within the framework of general hybrid orthogonal functions (GHOF). The use of GHOF enables parameter estimation directly in continuous-time model. Modification of the estimator algorithm suitable for on-line estimation using the microcontroller is discussed. The experimental results and simulation results are reported.","PeriodicalId":261724,"journal":{"name":"2001 IEEE Pacific Rim Conference on Communications, Computers and Signal Processing (IEEE Cat. No.01CH37233)","volume":"91 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125865095","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
Reduced code transmission and high speed reconstruction of Huffman tables 减少代码传输和霍夫曼表的高速重建
2001 IEEE Pacific Rim Conference on Communications, Computers and Signal Processing (IEEE Cat. No.01CH37233) Pub Date : 2001-08-26 DOI: 10.1109/PACRIM.2001.953552
R. Hashemian, M. Ahmadi
{"title":"Reduced code transmission and high speed reconstruction of Huffman tables","authors":"R. Hashemian, M. Ahmadi","doi":"10.1109/PACRIM.2001.953552","DOIUrl":"https://doi.org/10.1109/PACRIM.2001.953552","url":null,"abstract":"A Huffman (1952) code reconstruction technique is presented. It is shown that, based on some unique properties of a particular Huffman coding scheme, called single-side grown Huffman table, only certain codes need to be transmitted to the decoder to reconstruct the entire Huffman table.","PeriodicalId":261724,"journal":{"name":"2001 IEEE Pacific Rim Conference on Communications, Computers and Signal Processing (IEEE Cat. No.01CH37233)","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121852772","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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