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1996 IEEE Digital Signal Processing Workshop Proceedings最新文献

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New results on the evaluation of equalizers performance 均衡器性能评价的新结果
1996 IEEE Digital Signal Processing Workshop Proceedings Pub Date : 1996-09-01 DOI: 10.1109/DSPWS.1996.555562
M. Prandini, M. Campi, R. Leonardi
{"title":"New results on the evaluation of equalizers performance","authors":"M. Prandini, M. Campi, R. Leonardi","doi":"10.1109/DSPWS.1996.555562","DOIUrl":"https://doi.org/10.1109/DSPWS.1996.555562","url":null,"abstract":"An important feature in the analysis of a digital linear transmission system is the evaluation of its intersymbol interference phenomenon. A suitable measure of performance is represented by the probability of error. We present a new upper bound on the probability of error in PAM systems. The main feature of this bound is that it depends on the variance and fourth-order cumulant of the measurable equalizer output and on the a-priori known statistics of the channel input. It can therefore be useful for an a-posteriori evaluation of the equalization accuracy in a blind equalization context.","PeriodicalId":131323,"journal":{"name":"1996 IEEE Digital Signal Processing Workshop Proceedings","volume":"613 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1996-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134453307","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
Cosine-modulated non-uniform filter banks 余弦调制非均匀滤波器组
1996 IEEE Digital Signal Processing Workshop Proceedings Pub Date : 1996-09-01 DOI: 10.1109/DSPWS.1996.555477
F. Argenti, B. Brogelli, E. D. Re
{"title":"Cosine-modulated non-uniform filter banks","authors":"F. Argenti, B. Brogelli, E. D. Re","doi":"10.1109/DSPWS.1996.555477","DOIUrl":"https://doi.org/10.1109/DSPWS.1996.555477","url":null,"abstract":"A method used to design filter banks that allow one to split the spectrum of a signal into non-uniform width subbands is presented. The filters of the banks are obtained by cosine modulation of more than one prototype. The prototypes are designed by imposing the cancellation of the main component of aliasing in the reconstructed signal. Aliasing components and their cancellation in rational sampling factors banks are described and design examples are presented.","PeriodicalId":131323,"journal":{"name":"1996 IEEE Digital Signal Processing Workshop Proceedings","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1996-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131185540","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
Finding the right wavelet for image compression: on the relevance of criteria 为图像压缩寻找合适的小波:关于标准的相关性
1996 IEEE Digital Signal Processing Workshop Proceedings Pub Date : 1996-09-01 DOI: 10.1109/DSPWS.1996.555458
T. Buschgens, F. Hartenstein
{"title":"Finding the right wavelet for image compression: on the relevance of criteria","authors":"T. Buschgens, F. Hartenstein","doi":"10.1109/DSPWS.1996.555458","DOIUrl":"https://doi.org/10.1109/DSPWS.1996.555458","url":null,"abstract":"Finding the right wavelet is a crucial problem in wavelet-based image compression. Several criteria for choosing the right wavelet have been presented during the last years, but have never been evaluated together under equivalent conditions. We review some of them, present one additional criterion, the shift variance of compressed impulses, and show the results of an extensive evaluation using parameterized orthonormal wavelet filters of lengths 4, 6 and 8. We can show that under these conditions only few of the proposed criteria prove relevant.","PeriodicalId":131323,"journal":{"name":"1996 IEEE Digital Signal Processing Workshop Proceedings","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1996-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124413775","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 noise cancellation algorithm based on hypergraph modeling 一种基于超图建模的噪声消除算法
1996 IEEE Digital Signal Processing Workshop Proceedings Pub Date : 1996-09-01 DOI: 10.1109/DSPWS.1996.555446
A. Bretto, H. Cherifi
{"title":"A noise cancellation algorithm based on hypergraph modeling","authors":"A. Bretto, H. Cherifi","doi":"10.1109/DSPWS.1996.555446","DOIUrl":"https://doi.org/10.1109/DSPWS.1996.555446","url":null,"abstract":"Although the binary relations used in proximity graphs are relevant for many basic situations, they cannot represent the structuration process of digital images. In this paper we show that hypergraph theory is a more appropriate frame to describe the neighborhood relations that can be formalized between pixels. We illustrate the effectiveness of such a model by deriving a noise cancellation algorithm based on a basic combinatoric property of hypergraphs.","PeriodicalId":131323,"journal":{"name":"1996 IEEE Digital Signal Processing Workshop Proceedings","volume":"177 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1996-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127310911","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: 9
Wave digital simulation of transmission lines with arbitrary initial potential and current distributions 具有任意初始电位和电流分布的输电线路的波动数字模拟
1996 IEEE Digital Signal Processing Workshop Proceedings Pub Date : 1996-09-01 DOI: 10.1109/DSPWS.1996.555494
H. Krauß
{"title":"Wave digital simulation of transmission lines with arbitrary initial potential and current distributions","authors":"H. Krauß","doi":"10.1109/DSPWS.1996.555494","DOIUrl":"https://doi.org/10.1109/DSPWS.1996.555494","url":null,"abstract":"A method for simulating transients on coupled transmission lines by means of multidimensional wave digital filter (MWDF) techniques is proposed. The suggested method allows one to treat arbitrary initial potential and current distributions as well as boundary conditions originating from linear lumped element terminations. Moreover, the method is also applicable to nonuniform transmission lines with space-dependent parameters. A great advantage of the method is its computational efficiency, because all necessary calculations take place directly in the space-time domain.","PeriodicalId":131323,"journal":{"name":"1996 IEEE Digital Signal Processing Workshop Proceedings","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1996-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127393811","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
Data association from two acoustic-magnetic measurement sites 两个声磁测点的数据关联
1996 IEEE Digital Signal Processing Workshop Proceedings Pub Date : 1996-09-01 DOI: 10.1109/DSPWS.1996.555528
G. Dassot, R. Blanpain
{"title":"Data association from two acoustic-magnetic measurement sites","authors":"G. Dassot, R. Blanpain","doi":"10.1109/DSPWS.1996.555528","DOIUrl":"https://doi.org/10.1109/DSPWS.1996.555528","url":null,"abstract":"This paper is dealing with the localisation problem of acoustic-magnetic sources moving in straight line at constant speed. Our technique is based on the association of acoustic Doppler and magnetostatic methods when two measurement sites are available. In that case the problem is not fully observable and a ghost solution remains. We present an extended Kalman filter with an extensive state vector and a linear observation equation. This structure ensures high convergence properties in case of poor initialisation as is shown on a comparative example.","PeriodicalId":131323,"journal":{"name":"1996 IEEE Digital Signal Processing Workshop Proceedings","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1996-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130533123","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
An MPEG-2 video decoder DSP architecture 一种MPEG-2视频解码器的DSP架构
1996 IEEE Digital Signal Processing Workshop Proceedings Pub Date : 1996-09-01 DOI: 10.1109/DSPWS.1996.555495
M. Rudberg, L. Wanhammar
{"title":"An MPEG-2 video decoder DSP architecture","authors":"M. Rudberg, L. Wanhammar","doi":"10.1109/DSPWS.1996.555495","DOIUrl":"https://doi.org/10.1109/DSPWS.1996.555495","url":null,"abstract":"The MPEG-2 video standard is a generic international standard for applications such as digital storage media, television broadcasting, and multimedia. A novel MPEG-2 video decoder architecture is presented. The use of dedicated processing elements in an asynchronous communication structure gives a high degree of modularity. A semi-static scheduling scheme is used to keep the resource utilization high.","PeriodicalId":131323,"journal":{"name":"1996 IEEE Digital Signal Processing Workshop Proceedings","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1996-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132422935","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
Digital signal processing by employment of generalized algorithm 采用广义算法处理数字信号
1996 IEEE Digital Signal Processing Workshop Proceedings Pub Date : 1996-09-01 DOI: 10.1109/DSPWS.1996.555566
V. Tuzlukov
{"title":"Digital signal processing by employment of generalized algorithm","authors":"V. Tuzlukov","doi":"10.1109/DSPWS.1996.555566","DOIUrl":"https://doi.org/10.1109/DSPWS.1996.555566","url":null,"abstract":"Questions of detector synthesis on basis of the generalized signal processing algorithm are considered. Sensitivity to changing of the internal noise variance relative to the calculated variance and probability of error for analog-to-digital conversion of a random input process are investigated for generalized and optimal detectors.","PeriodicalId":131323,"journal":{"name":"1996 IEEE Digital Signal Processing Workshop Proceedings","volume":"94 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1996-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122556756","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
Application of cone detectors to detection of signals in structured interference 锥形探测器在结构干扰信号检测中的应用
1996 IEEE Digital Signal Processing Workshop Proceedings Pub Date : 1996-09-01 DOI: 10.1109/DSPWS.1996.555563
S. Ramprashad, T. Parks
{"title":"Application of cone detectors to detection of signals in structured interference","authors":"S. Ramprashad, T. Parks","doi":"10.1109/DSPWS.1996.555563","DOIUrl":"https://doi.org/10.1109/DSPWS.1996.555563","url":null,"abstract":"The paper addresses a specific case of the detection of signals in noisy environments. In the situation to be considered, noise is modeled as additive Gaussian noise. Signals, and interference of known structure, are modeled as belonging to linear subspaces. The paper reviews and extends previous work on this problem by applying cone classes to model additional information of the relative energy of signals to structured interferences. Detectors designed with this extended model are compared to classical subspace detectors. An example is given to illustrate possible improvements using this new detection scheme. Such an example is also applicable to the multisensor array problem in which windowing and sequencing signal areas of the array record can produce periodic sequences.","PeriodicalId":131323,"journal":{"name":"1996 IEEE Digital Signal Processing Workshop Proceedings","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1996-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121845276","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
Breakdown points and optimal soft morphological filtering 击穿点和最优软形态滤波
1996 IEEE Digital Signal Processing Workshop Proceedings Pub Date : 1996-09-01 DOI: 10.1109/DSPWS.1996.555569
P. Koivisto, K. Huttunen, P. Kuosmanen
{"title":"Breakdown points and optimal soft morphological filtering","authors":"P. Koivisto, K. Huttunen, P. Kuosmanen","doi":"10.1109/DSPWS.1996.555569","DOIUrl":"https://doi.org/10.1109/DSPWS.1996.555569","url":null,"abstract":"A novel filter optimality criterion based on the breakdown point constraint is proposed. The criterion provides a trade-off between noise attenuation and detail preservation. The formulas for the breakdown points of the basic soft morphological filters are derived. The practical applicability of the criterion is empirically studied in connection with the optimization of soft morphological filters by simulated annealing and genetic algorithms.","PeriodicalId":131323,"journal":{"name":"1996 IEEE Digital Signal Processing Workshop Proceedings","volume":"519 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1996-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116571377","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
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