Pub Date : 2007-07-01DOI: 10.1109/ICDSP.2007.4288553
S. Colonnese, G. Panci, S. Rinauro, G. Scarano
This paper addresses the problem of semiblind equalization for long sparse channels using a sparse equalizer. We formulate the equalization problem following a Bussgang approach, derive the coherent MMSE input synbol estimator, and assess the performances of the analyzed semi-blind Bussgang equalizer in typical sparse channels. The simulations show that the semi-blind linear equalization algorithm allows flexible integration of the training in the eqaulization procedure while the sparse, not connected, support favourably copes with channels characterized by long delayed echoes.
{"title":"Semi Blind Bussgang Equalization for Sparse Channels","authors":"S. Colonnese, G. Panci, S. Rinauro, G. Scarano","doi":"10.1109/ICDSP.2007.4288553","DOIUrl":"https://doi.org/10.1109/ICDSP.2007.4288553","url":null,"abstract":"This paper addresses the problem of semiblind equalization for long sparse channels using a sparse equalizer. We formulate the equalization problem following a Bussgang approach, derive the coherent MMSE input synbol estimator, and assess the performances of the analyzed semi-blind Bussgang equalizer in typical sparse channels. The simulations show that the semi-blind linear equalization algorithm allows flexible integration of the training in the eqaulization procedure while the sparse, not connected, support favourably copes with channels characterized by long delayed echoes.","PeriodicalId":88900,"journal":{"name":"International Conference on Digital Signal Processing proceedings : DSP. International Conference on Digital Signal Processing","volume":"186 1","pages":"199-202"},"PeriodicalIF":0.0,"publicationDate":"2007-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75865242","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 : 2007-01-01DOI: 10.1109/ICDSP.2007.4288509
E. Soria-Olivas, J. Martín-Guerrero, M. Martínez-Sober, A. R. Muñoz, J. Calpe-Maravilla
{"title":"A Family of Adaptive Algorithms Robust to Impulsive Noise","authors":"E. Soria-Olivas, J. Martín-Guerrero, M. Martínez-Sober, A. R. Muñoz, J. Calpe-Maravilla","doi":"10.1109/ICDSP.2007.4288509","DOIUrl":"https://doi.org/10.1109/ICDSP.2007.4288509","url":null,"abstract":"","PeriodicalId":88900,"journal":{"name":"International Conference on Digital Signal Processing proceedings : DSP. International Conference on Digital Signal Processing","volume":"42 1","pages":"23-26"},"PeriodicalIF":0.0,"publicationDate":"2007-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74866600","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 : 2007-01-01DOI: 10.1109/ICDSP.2007.4288585
J. Izydorczyk
{"title":"New Algorithm for Designing FIR Filters with Power-of-Two Coefficients","authors":"J. Izydorczyk","doi":"10.1109/ICDSP.2007.4288585","DOIUrl":"https://doi.org/10.1109/ICDSP.2007.4288585","url":null,"abstract":"","PeriodicalId":88900,"journal":{"name":"International Conference on Digital Signal Processing proceedings : DSP. International Conference on Digital Signal Processing","volume":"11 1","pages":"327-330"},"PeriodicalIF":0.0,"publicationDate":"2007-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81809574","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 : 2002-07-01DOI: 10.1109/ICDSP.2002.1028322
N. Kavvadias, S. Nikolaidis
Multimedia applications are characterized by high computational demands related to data transfer and storage operations. Multimedia algorithms in their majority consist of regular repetitive loop constructs. In this paper, a novel control architecture for implementing such loop intensive algorithms is described. The proposed control unit takes advantage of the regularity of computations in order to serve as high performance parametric controller of multimedia datapaths. The control unit cooperates with datapath modules and their corresponding controlling FSM. Algorithmic flow dependencies which determine the appropriate loop sequencing are mapped on a LUT. For another algorithm to execute, LUT context and FSM configurations only have to be reprogrammed. Thus, partial reconfiguration possibilities for implementing multimedia algorithms on programmable platforms can be exploited. For demonstration purposes, a matrix multiply algorithm implementation case is investigated. Compared to a software realization on ARM7 processor, significant performance improvements are reported.
{"title":"Parametric architecture for implementing multimedia algorithms","authors":"N. Kavvadias, S. Nikolaidis","doi":"10.1109/ICDSP.2002.1028322","DOIUrl":"https://doi.org/10.1109/ICDSP.2002.1028322","url":null,"abstract":"Multimedia applications are characterized by high computational demands related to data transfer and storage operations. Multimedia algorithms in their majority consist of regular repetitive loop constructs. In this paper, a novel control architecture for implementing such loop intensive algorithms is described. The proposed control unit takes advantage of the regularity of computations in order to serve as high performance parametric controller of multimedia datapaths. The control unit cooperates with datapath modules and their corresponding controlling FSM. Algorithmic flow dependencies which determine the appropriate loop sequencing are mapped on a LUT. For another algorithm to execute, LUT context and FSM configurations only have to be reprogrammed. Thus, partial reconfiguration possibilities for implementing multimedia algorithms on programmable platforms can be exploited. For demonstration purposes, a matrix multiply algorithm implementation case is investigated. Compared to a software realization on ARM7 processor, significant performance improvements are reported.","PeriodicalId":88900,"journal":{"name":"International Conference on Digital Signal Processing proceedings : DSP. International Conference on Digital Signal Processing","volume":"108 1","pages":"1261-1264"},"PeriodicalIF":0.0,"publicationDate":"2002-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84205536","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 : 2002-01-01DOI: 10.1109/icdsp.2002.1027902
O. Bajdechi, J. Huijsing, G. Gielen
{"title":"Power optimization in ΣΔ ADC design","authors":"O. Bajdechi, J. Huijsing, G. Gielen","doi":"10.1109/icdsp.2002.1027902","DOIUrl":"https://doi.org/10.1109/icdsp.2002.1027902","url":null,"abstract":"","PeriodicalId":88900,"journal":{"name":"International Conference on Digital Signal Processing proceedings : DSP. International Conference on Digital Signal Processing","volume":"54 1","pages":"353-359"},"PeriodicalIF":0.0,"publicationDate":"2002-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73552507","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 : 2002-01-01DOI: 10.1109/ICDSP.2002.1027881
G. Nokas, E. Dermatas
{"title":"Spectrum-entropy based beam-former with speaker tracking for hands-free continuous speech recognition in noise","authors":"G. Nokas, E. Dermatas","doi":"10.1109/ICDSP.2002.1027881","DOIUrl":"https://doi.org/10.1109/ICDSP.2002.1027881","url":null,"abstract":"","PeriodicalId":88900,"journal":{"name":"International Conference on Digital Signal Processing proceedings : DSP. International Conference on Digital Signal Processing","volume":"37 1","pages":"251-254"},"PeriodicalIF":0.0,"publicationDate":"2002-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75210386","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 : 2002-01-01DOI: 10.1109/icdsp.2002.1028230
G. Bourdopoulos, A. Pneumatikakis, T. Deliyannis
{"title":"Optimal NTFs for single-bit ΣΔ modulators","authors":"G. Bourdopoulos, A. Pneumatikakis, T. Deliyannis","doi":"10.1109/icdsp.2002.1028230","DOIUrl":"https://doi.org/10.1109/icdsp.2002.1028230","url":null,"abstract":"","PeriodicalId":88900,"journal":{"name":"International Conference on Digital Signal Processing proceedings : DSP. International Conference on Digital Signal Processing","volume":"38 1","pages":"877-880"},"PeriodicalIF":0.0,"publicationDate":"2002-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85996291","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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