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IEEE International Symposium on Intelligent Signal Processing, 2003最新文献

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Order adaptive local polynomial FT based interference rejection in spread spectrum communication systems 扩频通信系统中基于阶自适应局部多项式FT的干扰抑制
IEEE International Symposium on Intelligent Signal Processing, 2003 Pub Date : 2003-09-04 DOI: 10.1109/ISP.2003.1275849
L. Stanković, S. Djukanović
{"title":"Order adaptive local polynomial FT based interference rejection in spread spectrum communication systems","authors":"L. Stanković, S. Djukanović","doi":"10.1109/ISP.2003.1275849","DOIUrl":"https://doi.org/10.1109/ISP.2003.1275849","url":null,"abstract":"Methods for jammer rejection in spread spectrum communications, based on time-frequency representations, have been proposed in order to improve desired signal receiving performances. We also consider nonstationary jammer. The local polynomial Fourier transform (LPFT) is used to represent received corrupted signal. Time-varying filtering is implemented in this domain, having in mind that the LPFT is linear with respect to the signal. An order adaptive algorithm of the LPFT calculation is presented. Performance of the proposed nonparametric method is tested in the presence of linear and sinusoidal FM interferences in the noisy signal, without any a priori assumption about the jammer form. Results in terms of the bit error rate (BER) values are calculated, showing the achieved improvements. Since the first order LPFT is closely related to windowed modified fractional Fourier transform, procedure for an efficient optimization is presented.","PeriodicalId":285893,"journal":{"name":"IEEE International Symposium on Intelligent Signal Processing, 2003","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126325857","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
Simulink block library for fast prototyping of reconfigurable DSP systems 用于可重构DSP系统快速原型设计的Simulink块库
IEEE International Symposium on Intelligent Signal Processing, 2003 Pub Date : 2003-09-04 DOI: 10.1109/ISP.2003.1275835
T. Kovácsházy, G. Samu, G. Péceli
{"title":"Simulink block library for fast prototyping of reconfigurable DSP systems","authors":"T. Kovácsházy, G. Samu, G. Péceli","doi":"10.1109/ISP.2003.1275835","DOIUrl":"https://doi.org/10.1109/ISP.2003.1275835","url":null,"abstract":"We present a block library for Matlab/Simulink that allows fast prototyping of reconfigurable DSP systems. Up till now no similar software package was available. The block library supports the construction of reconfigurable discrete time linear and nonlinear systems from reconfigurable digital filters using various filter structures, state-space form implementations, polynomial filters, and PID controllers. We list the requirements for the block library and introduce the main implementation related decisions that allows the block library to meet these requirements. An example illustrates the usage of the block library.","PeriodicalId":285893,"journal":{"name":"IEEE International Symposium on Intelligent Signal Processing, 2003","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128547713","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
Stochastic model for single photon-counting measurements 单光子计数测量的随机模型
IEEE International Symposium on Intelligent Signal Processing, 2003 Pub Date : 2003-09-04 DOI: 10.1109/ISP.2003.1275854
L. Nádai, P. Várlaki
{"title":"Stochastic model for single photon-counting measurements","authors":"L. Nádai, P. Várlaki","doi":"10.1109/ISP.2003.1275854","DOIUrl":"https://doi.org/10.1109/ISP.2003.1275854","url":null,"abstract":"Time-correlated single photon counting is a technique to record low level light signals with very high time resolution. We first describe the experimental apparatus and briefly outline the statistical interpretation of the measurement series. After, we propose a stochastic model for the formulation of interference patterns based on doubly stochastic autoregressive model class. We suggest the application of optimal filtering technique conceived in [R. J. Elliott et al., (1997)] in order to estimate the underlying intensity process of the Poisson type measurement series. Finally, we present some results of the identification of realistic data that is although in coincidence with the general view of interference experiments, goes beyond the physical interpretation and may deepen our understanding of the quantum world.","PeriodicalId":285893,"journal":{"name":"IEEE International Symposium on Intelligent Signal Processing, 2003","volume":"797 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116417215","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
A solution for eigen fuzzy sets of adjoint max-min composition and its application to image analysis 伴随极大极小组合特征模糊集的求解及其在图像分析中的应用
IEEE International Symposium on Intelligent Signal Processing, 2003 Pub Date : 2003-09-04 DOI: 10.1109/ISP.2003.1275808
H. Nobuhara, K. Hirota
{"title":"A solution for eigen fuzzy sets of adjoint max-min composition and its application to image analysis","authors":"H. Nobuhara, K. Hirota","doi":"10.1109/ISP.2003.1275808","DOIUrl":"https://doi.org/10.1109/ISP.2003.1275808","url":null,"abstract":"As a principal component analysis of the images based on an ordered structure, the greatest eigen fuzzy set (GEFS) and the smallest eigen fuzzy set (SEFS) of max-min composition and adjoint one, are proposed. In the case of the proposed method, an original image is regarded as a fuzzy relation by intensity normalization, and the GEFS and the SEFS are obtained as the transitive closure of the fuzzy relation. Through experiments using 91 test images extracted from 'view sphere database', it is confirmed that the GEFS and SEFS are obtained during 10 iterations, under the condition that the size of the original image is 256 x 256 pixels.","PeriodicalId":285893,"journal":{"name":"IEEE International Symposium on Intelligent Signal Processing, 2003","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133669212","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
Asymptotic stabilization of aeroelastic systems via TP transformation 基于TP变换的气动弹性系统渐近镇定
IEEE International Symposium on Intelligent Signal Processing, 2003 Pub Date : 2003-09-04 DOI: 10.1109/ISP.2003.1275829
P. Baranyi, A. Várkonyi-Kóczy
{"title":"Asymptotic stabilization of aeroelastic systems via TP transformation","authors":"P. Baranyi, A. Várkonyi-Kóczy","doi":"10.1109/ISP.2003.1275829","DOIUrl":"https://doi.org/10.1109/ISP.2003.1275829","url":null,"abstract":"A comprehensive analysis of aeroelastic systems has shown that these systems exhibit a broad class of pathological response regimes when certain types of nonlinearities are included. We propose a design method of a state-dependent nonlinear controller for aeroelastic systems that includes polynomial structural nonlinearities. The method is based on recent numerical methods such as tensor product model transformation and parallel distributed compensation. As an example, a controller is derived that ensures the global asymptotic stability of a prototypical aeroelastic wing section via one control surface. Alternative solution with one control surface and global asymptotic stability does not exist so far. Numerical simulations are used to provide empirical validation of the control results. The effectiveness of the controller design is compared with former approaches.","PeriodicalId":285893,"journal":{"name":"IEEE International Symposium on Intelligent Signal Processing, 2003","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123896619","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
Real-time FEXT crosstalk identification in ADSL systems ADSL系统中实时文本串扰识别
IEEE International Symposium on Intelligent Signal Processing, 2003 Pub Date : 2003-09-04 DOI: 10.1109/ISP.2003.1275814
N. Papandreou, T. Antonakopoulos
{"title":"Real-time FEXT crosstalk identification in ADSL systems","authors":"N. Papandreou, T. Antonakopoulos","doi":"10.1109/ISP.2003.1275814","DOIUrl":"https://doi.org/10.1109/ISP.2003.1275814","url":null,"abstract":"FEXT crosstalk identification results in improved frequency spectrum utilization in ADSL systems. The accurate determination of the crosstalk transfer function is a demanding task that is affected by various system impairments. We investigate the performance of a real-time method that exploits the exchange of signaling information of a new activated ADSL line in order to determine the crosstalk function between this line and an existing operational line.","PeriodicalId":285893,"journal":{"name":"IEEE International Symposium on Intelligent Signal Processing, 2003","volume":"126 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116111232","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
Advanced signal processing methods for analysis of non-stationary signals in power systems 电力系统非平稳信号分析的先进信号处理方法
IEEE International Symposium on Intelligent Signal Processing, 2003 Pub Date : 2003-09-04 DOI: 10.1109/ISP.2003.1275811
T. Lobos, J. Rezmer, T. Sikorski
{"title":"Advanced signal processing methods for analysis of non-stationary signals in power systems","authors":"T. Lobos, J. Rezmer, T. Sikorski","doi":"10.1109/ISP.2003.1275811","DOIUrl":"https://doi.org/10.1109/ISP.2003.1275811","url":null,"abstract":"This paper aims to consider using the wavelet transform (WT), Wigner-Ville distribution (WVD) and Choi-Williams distribution (CWD) for spectrum estimation of nonstationary signals in power systems. The main goal is to emphasize the advantage and disadvantage of the mentioned methods in comparison with the short-time Fourier transform (STFT). The aspect of frequency resolution is explored on the basis of signals at the output of the simulated frequency converter, which is a major issue when diagnosis problems of drive faults are considered.","PeriodicalId":285893,"journal":{"name":"IEEE International Symposium on Intelligent Signal Processing, 2003","volume":"44 3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117252383","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
Nonlinear processing and semantic content analysis in medical imaging 医学影像中的非线性处理与语义内容分析
IEEE International Symposium on Intelligent Signal Processing, 2003 Pub Date : 2003-09-04 DOI: 10.1109/ISP.2003.1275846
M. Ogiela, R. Tadeusiewicz
{"title":"Nonlinear processing and semantic content analysis in medical imaging","authors":"M. Ogiela, R. Tadeusiewicz","doi":"10.1109/ISP.2003.1275846","DOIUrl":"https://doi.org/10.1109/ISP.2003.1275846","url":null,"abstract":"Traditional approach to automated analysis of medical data is mostly based on statistical or theoretical-decision methods of pattern recognition. Using such methods, we can obtain many valuable items, e.g. tracking of patients moving, control of medical treatment etc. But in medical informatics are still many problems not solvable by computers and reserved for human medical staff. Such problems can be solved by development of scientific research towards machine intelligence. We try to show how computer can understand medical date instead of simple processing, and analysis. Sometimes it may be useful to make semantic content analysis leading to automatic understanding of medical data e.g. for intelligent helping of diagnosis process or for semantic based searching in medical databases. We present the application of cognitive-based approach for intelligent semantic analysis allowing automatically describe important diagnostic features of analyzed images. This approach is based on a special kind of image description languages and grammar formalism. During the linguistic analysis of medical patterns, we can solve problem of generalization of features of selected image and obtaining semantic content description of the image. Most important part of this analysis depends on the \"cognitive resonance\" process, when features of real image are compared with some kind of expectations taken from the knowledge base containing knowledge regarding pathological cases, originating from medical practice.","PeriodicalId":285893,"journal":{"name":"IEEE International Symposium on Intelligent Signal Processing, 2003","volume":"30 4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127105221","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
Sliding mode navigation control in intelligent space 智能空间的滑模导航控制
IEEE International Symposium on Intelligent Signal Processing, 2003 Pub Date : 2003-09-04 DOI: 10.1109/ISP.2003.1275843
R. Precup, S. Preitl, C. Szabo, Z. Gyurkó, P. Szemes
{"title":"Sliding mode navigation control in intelligent space","authors":"R. Precup, S. Preitl, C. Szabo, Z. Gyurkó, P. Szemes","doi":"10.1109/ISP.2003.1275843","DOIUrl":"https://doi.org/10.1109/ISP.2003.1275843","url":null,"abstract":"We present a general description for obstacle avoidance algorithms that can also describe the obstacle avoidance style (walking habit) of moving objects (human beings). A complex sliding mode based obstacle avoidance is presented as a test method, which is learned and modeled by this general description. We present simulation results of three control systems by considering the robot movement control approximated by a benchmark-type one-dimensional model.","PeriodicalId":285893,"journal":{"name":"IEEE International Symposium on Intelligent Signal Processing, 2003","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125077241","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
Intelligent monitor for anytime systems 智能监视器随时系统
IEEE International Symposium on Intelligent Signal Processing, 2003 Pub Date : 2003-09-04 DOI: 10.1109/ISP.2003.1275852
G. Samu, A. Várkonyi-Kóczy
{"title":"Intelligent monitor for anytime systems","authors":"G. Samu, A. Várkonyi-Kóczy","doi":"10.1109/ISP.2003.1275852","DOIUrl":"https://doi.org/10.1109/ISP.2003.1275852","url":null,"abstract":"Anytime systems provide a tradeoff between the time resource, and computational performance, namely the quality of the results. Intelligent monitoring schemes are needed to achieve such a property and these schemes are supported by special compilation methods. Besides the global and local compilations, hierarchical compilation provides a theoretical base for the applicability of active monitoring of anytime systems represented by a directed acyclic graph. Active monitoring methods have to deal with timing considerations and constraints of the underlying operating system and even their own run-time characteristics. The theoretical basics of a new compilation method, the hierarchical compilation and the active monitoring scheme based on this proposed techniques are introduced.","PeriodicalId":285893,"journal":{"name":"IEEE International Symposium on Intelligent Signal Processing, 2003","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130732150","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
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