发布求助
文献互助 智能选刊 最新文献

Proceedings of the Sixth International Symposium on Signal Processing and its Applications (Cat.No.01EX467)最新文献

筛选
英文 中文
Design of a power-scalable digital least-means-square adaptive filter 功率可扩展数字最小均方自适应滤波器的设计
Proceedings of the Sixth International Symposium on Signal Processing and its Applications (Cat.No.01EX467) Pub Date : 1900-01-01 DOI: 10.1109/ISSPA.2001.949835
CheeWe Ng, A. Chandrakasan
{"title":"Design of a power-scalable digital least-means-square adaptive filter","authors":"CheeWe Ng, A. Chandrakasan","doi":"10.1109/ISSPA.2001.949835","DOIUrl":"https://doi.org/10.1109/ISSPA.2001.949835","url":null,"abstract":"Channel equalization is a required function in many high speed communication systems. As a result of the high performance requirements and complexity, adaptive equalization filters require significant power. These filters are often implemented in hardware rather than software on a DSP. A power scalable adaptive equalizer is presented where the power scales with the required precision through the use of dynamic tap length and bit precision. Using these techniques, a power reduction from 20.4 mW in a fixed length and bit precision filter to a minimum of 6.4 mW is demonstrated.","PeriodicalId":236050,"journal":{"name":"Proceedings of the Sixth International Symposium on Signal Processing and its Applications (Cat.No.01EX467)","volume":"45 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114205993","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
Blind signal separation and blind system identification of irreducible MIMO channels 不可约MIMO信道的盲信号分离与盲系统识别
Proceedings of the Sixth International Symposium on Signal Processing and its Applications (Cat.No.01EX467) Pub Date : 1900-01-01 DOI: 10.1109/ISSPA.2001.949831
Senjian An, Y. Hua
{"title":"Blind signal separation and blind system identification of irreducible MIMO channels","authors":"Senjian An, Y. Hua","doi":"10.1109/ISSPA.2001.949831","DOIUrl":"https://doi.org/10.1109/ISSPA.2001.949831","url":null,"abstract":"This paper deals with blind system identification of FIR MIMO (finite impulse response and multi input multi output) channels driven by colored signals. Based on second order statistics, a novel technique of blind identification is developed for irreducible MIMO channels. It requires a weaker condition on the input power spectra than some existing blind system identification methods and the computation is also reduced.","PeriodicalId":236050,"journal":{"name":"Proceedings of the Sixth International Symposium on Signal Processing and its Applications (Cat.No.01EX467)","volume":"165 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114334433","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 mixture distribution for the wire bonding image 电线粘合图像的混合分布
Proceedings of the Sixth International Symposium on Signal Processing and its Applications (Cat.No.01EX467) Pub Date : 1900-01-01 DOI: 10.1109/ISSPA.2001.950230
N. Noor, O. M. Rijal, O. Badar, P. Thon
{"title":"A mixture distribution for the wire bonding image","authors":"N. Noor, O. M. Rijal, O. Badar, P. Thon","doi":"10.1109/ISSPA.2001.950230","DOIUrl":"https://doi.org/10.1109/ISSPA.2001.950230","url":null,"abstract":"As a measure of quality for wire bonding, the degree of formation of intermetallics between gold ball and aluminium bond pad was estimated. A digital colour circle image of the surface of the gold ball that was attached to the bond pad was obtained. The resultant image had to be modelled by a three component mixture model proposed by Noor, Rijal, Badar and Thon, (see IEEE TENCON 2000, Kuala Lumpur, p.1299-1304, September 2000), but was shown to be a bad fit. We show that digitizing the polygon image in grey level resulted in a simpler image histogram, which could be model by a two-component mixture model. As an additional method of determining cut-off points between the 'humps' in the mixture model, line profiles of the image were studied.","PeriodicalId":236050,"journal":{"name":"Proceedings of the Sixth International Symposium on Signal Processing and its Applications (Cat.No.01EX467)","volume":"722 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115906435","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
Spectrogram decompositions of time-frequency distributions 时频分布的频谱图分解
Proceedings of the Sixth International Symposium on Signal Processing and its Applications (Cat.No.01EX467) Pub Date : 1900-01-01 DOI: 10.1109/ISSPA.2001.950213
W. J. Williams, Selin Aviyente
{"title":"Spectrogram decompositions of time-frequency distributions","authors":"W. J. Williams, Selin Aviyente","doi":"10.1109/ISSPA.2001.950213","DOIUrl":"https://doi.org/10.1109/ISSPA.2001.950213","url":null,"abstract":"This paper outlines means of combining spectrograms formed using specially designed windows. Previous work has shown that one can decompose any time-frequency distribution (TFD) in Cohen's class into a weighted sum of spectrograms. This is accomplished by decomposing the kernel of the distribution in terms of an orthogonal set of analysis windows. The spectrograms obtained using these analysis windows are then linearly combined with proper weights to form the desired TFD. The goal is a full and effective basis for representing TFD. Successful application of this theory offers very fast computation of TFD, since very few analysis windows may be needed and fast, recursive spectrogram algorithms can be used.","PeriodicalId":236050,"journal":{"name":"Proceedings of the Sixth International Symposium on Signal Processing and its Applications (Cat.No.01EX467)","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124025011","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
A new parametrization to the design of recursive digital filter 递归数字滤波器设计的一种新的参数化方法
Proceedings of the Sixth International Symposium on Signal Processing and its Applications (Cat.No.01EX467) Pub Date : 1900-01-01 DOI: 10.1109/ISSPA.2001.949765
Xiaokai Bai, Gang Li
{"title":"A new parametrization to the design of recursive digital filter","authors":"Xiaokai Bai, Gang Li","doi":"10.1109/ISSPA.2001.949765","DOIUrl":"https://doi.org/10.1109/ISSPA.2001.949765","url":null,"abstract":"It is known that any Schur polynomial can be characterized with a set of lattice partial correlation coefficients {k/sub i/} with |k/sub i/| < 1, /spl forall/i and this mapping is one-to-one. In this paper, based on the lattice structure we propose an alternative parametrization. It is important to notice that this parametrization is complete and compact, corresponds to the entire stable transfer function space and that any such parametrized transfer function is differentiable.","PeriodicalId":236050,"journal":{"name":"Proceedings of the Sixth International Symposium on Signal Processing and its Applications (Cat.No.01EX467)","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124330388","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
Automatic edge detection in noisy fringe patterns 在噪声条纹图案自动边缘检测
Proceedings of the Sixth International Symposium on Signal Processing and its Applications (Cat.No.01EX467) Pub Date : 1900-01-01 DOI: 10.1109/ISSPA.2001.949795
M. Ratnam
{"title":"Automatic edge detection in noisy fringe patterns","authors":"M. Ratnam","doi":"10.1109/ISSPA.2001.949795","DOIUrl":"https://doi.org/10.1109/ISSPA.2001.949795","url":null,"abstract":"Fringe patterns are usually analyzed using a predefined window due to the difficulty associated with finding their edges. This is because the fringes usually have minimum intensities similar to that of the background and therefore it is difficult to determine where a fringe starts and ends. This paper presents an automatic technique for detecting the edges of a noisy fringe pattern with various noise levels. The technique uses classical morphological operators and a simple binary edge detector. The relationship between background noise and threshold for the binarization was determined from simulated fringe patterns.","PeriodicalId":236050,"journal":{"name":"Proceedings of the Sixth International Symposium on Signal Processing and its Applications (Cat.No.01EX467)","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122900782","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
OFDM frame synchronization for dispersive channels 色散信道的OFDM帧同步
Proceedings of the Sixth International Symposium on Signal Processing and its Applications (Cat.No.01EX467) Pub Date : 1900-01-01 DOI: 10.1109/ISSPA.2001.950217
Daniel Landström, N. Petersson, Per Ödling, P. Börjesson
{"title":"OFDM frame synchronization for dispersive channels","authors":"Daniel Landström, N. Petersson, Per Ödling, P. Börjesson","doi":"10.1109/ISSPA.2001.950217","DOIUrl":"https://doi.org/10.1109/ISSPA.2001.950217","url":null,"abstract":"We address time synchronization in an OFDM system and present an ML estimator that also is unbiased for dispersive channels. The estimator uses the redundancy introduced by the cyclic prefix and knowledge of the channel. Previously presented estimators based on the cyclic prefix are either biased or have high complexity for this environment. We show that with proper choice of signal model, the complexity can be reduced considerably while maintaining the performance. Part of the novelty lies in the proper decomposition of correlation matrices that appear in the ML estimator. The new estimator structure consists of a linear filter, followed by an auto-correlating filterbank and a maximization.","PeriodicalId":236050,"journal":{"name":"Proceedings of the Sixth International Symposium on Signal Processing and its Applications (Cat.No.01EX467)","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128699344","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: 11
Training the children wavelets to recognise waveforms within non-stationary signals 训练儿童小波识别非平稳信号中的波形
Proceedings of the Sixth International Symposium on Signal Processing and its Applications (Cat.No.01EX467) Pub Date : 1900-01-01 DOI: 10.1109/ISSPA.2001.949815
S. Popeseu
{"title":"Training the children wavelets to recognise waveforms within non-stationary signals","authors":"S. Popeseu","doi":"10.1109/ISSPA.2001.949815","DOIUrl":"https://doi.org/10.1109/ISSPA.2001.949815","url":null,"abstract":"Many authors have developed methods for automatic recognition and classification of signal patterns based on wavelet transforms and wavelet theory. However so far a method to find the wavelet family that best fits a particular class of signals is yet not evolved. We present a new method based on a combination of wavelet analysis and the training method used in the field of artificial neural networks. We define a training process applied to a family of wavelets and intended to optimise the pattern detection and location capabilities when applied to a particular class of signals. We also demonstrate how this method is used to detect and localise the interictal epileptic spikes within human EEG bio-signals.","PeriodicalId":236050,"journal":{"name":"Proceedings of the Sixth International Symposium on Signal Processing and its Applications (Cat.No.01EX467)","volume":"94 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129842004","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 robust method for still image compression using dynamically constructive neural network 一种基于动态构造神经网络的鲁棒静态图像压缩方法
Proceedings of the Sixth International Symposium on Signal Processing and its Applications (Cat.No.01EX467) Pub Date : 1900-01-01 DOI: 10.1109/ISSPA.2001.950196
Md. Imamul Hassan Bhuiyan, Md. Kamrul Hasan, M. Haque, N. Hammadi
{"title":"A robust method for still image compression using dynamically constructive neural network","authors":"Md. Imamul Hassan Bhuiyan, Md. Kamrul Hasan, M. Haque, N. Hammadi","doi":"10.1109/ISSPA.2001.950196","DOIUrl":"https://doi.org/10.1109/ISSPA.2001.950196","url":null,"abstract":"A dynamically constructive neural network (DCNN) is proposed for still image compression. The main feature of the proposed dynamical construction is its robustness to input-to-hidden and hidden-to-output link failure. A wavelet transform based sub-image block classification technique is also proposed for partitioning training images into image clusters. Each cluster is used as a training set for training a particular DCNN. This ensures the generalization capability of DCNNs. Computer simulation results demonstrate superiority of the proposed scheme in terms of peak signal to noise ratio and robustness as compared to that of other recent methods.","PeriodicalId":236050,"journal":{"name":"Proceedings of the Sixth International Symposium on Signal Processing and its Applications (Cat.No.01EX467)","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121175088","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
Median-based post-processing for VQ image transmission over noisy channels 基于中值的噪声信道VQ图像传输后处理
Proceedings of the Sixth International Symposium on Signal Processing and its Applications (Cat.No.01EX467) Pub Date : 1900-01-01 DOI: 10.1109/ISSPA.2001.949772
R. Iordache, I. Tabus, Azeddine Beghdadi
{"title":"Median-based post-processing for VQ image transmission over noisy channels","authors":"R. Iordache, I. Tabus, Azeddine Beghdadi","doi":"10.1109/ISSPA.2001.949772","DOIUrl":"https://doi.org/10.1109/ISSPA.2001.949772","url":null,"abstract":"For image transmission over noisy channels, the VQ paradigm is a strong competitor. We propose a post-processing scheme that is able to improve the perceptual quality of the VQ reconstructed image, for various types of noisy channels, when it is combined with an appropriate index assignment. For binary symmetric channels, we use the index assignment resulting from the Linde, Buzo and Gray (1980) LBG design of the codebook, which ensures a low channel distortion. For the more challenging case of memory channels we consider index assignments specifically designed. We show that a significant perceptual improvement can be achieved with our post-processing scheme both for memoryless and memory channels.","PeriodicalId":236050,"journal":{"name":"Proceedings of the Sixth International Symposium on Signal Processing and its Applications (Cat.No.01EX467)","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125697616","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
首页 上一页 下一页 尾页
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整，为了账户安全，请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
请完成安全验证×
相关产品
×
本文献相关产品
联系我们：info@booksci.cn Book学术提供免费学术资源搜索服务，方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号：481959085
Book学术官方微信