发布求助
文献互助 智能选刊 最新文献

[1992] IEEE Sixth SP Workshop on Statistical Signal and Array Processing最新文献

筛选
英文 中文
Time-domain analysis of cross-correlation for multitarget/multipath time delay estimation 多目标多径时延估计的时域互相关分析
[1992] IEEE Sixth SP Workshop on Statistical Signal and Array Processing Pub Date : 1992-10-07 DOI: 10.1109/SSAP.1992.246890
A. Kumar, Y. Bar-Shalom
{"title":"Time-domain analysis of cross-correlation for multitarget/multipath time delay estimation","authors":"A. Kumar, Y. Bar-Shalom","doi":"10.1109/SSAP.1992.246890","DOIUrl":"https://doi.org/10.1109/SSAP.1992.246890","url":null,"abstract":"This paper analyzes the effect of source separation on the estimation accuracy of the TDOA of multiple exponentially autocorrelated signals at two sensors in white noise. The analysis is carried out for uncorrelated signals (separate sources) as well as unity correlated signals, as in multipath propagation from a single source. The estimates are obtained from cross-correlations based on moving average samples of the noisy signals from the two sensors. The effect of the source separation on the degradation ratio is evaluated and compared with the optimal processor. The theoretical performance is verified through simulations for different SNRs and time-bandwidth products. Another advantage of the technique is that it avoids ambiguities in the cross-correlation.<<ETX>>","PeriodicalId":309407,"journal":{"name":"[1992] IEEE Sixth SP Workshop on Statistical Signal and Array Processing","volume":"2004 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1992-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127332374","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
Analysis of effect of non-ideal beam-space preprocessors on eigenspace DOA estimators 非理想波束空间预处理器对特征空间DOA估计的影响分析
[1992] IEEE Sixth SP Workshop on Statistical Signal and Array Processing Pub Date : 1992-10-07 DOI: 10.1109/SSAP.1992.246798
W. Radich, K. Buckley
{"title":"Analysis of effect of non-ideal beam-space preprocessors on eigenspace DOA estimators","authors":"W. Radich, K. Buckley","doi":"10.1109/SSAP.1992.246798","DOIUrl":"https://doi.org/10.1109/SSAP.1992.246798","url":null,"abstract":"Analytical expressions for MUSIC DOA estimator variance and bias are used to study the effects of beam-space preprocessor matrix characteristics on beam-space MUSIC. It is shown that simultaneously steering to a desired sector while nulling another via the beamformer matrix in general degrades variance performance with respect to the performance achievable in beam-space. This the degradation is ascribed to the fact that as the null sector approaches the source sector of interest, the beamformer matrix range no longer contains both the span of the array response vectors within the source sector and their derivatives.<<ETX>>","PeriodicalId":309407,"journal":{"name":"[1992] IEEE Sixth SP Workshop on Statistical Signal and Array Processing","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1992-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123756437","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
Chaotic signal processing: new research directions and novel applications 混沌信号处理:新的研究方向和新的应用
[1992] IEEE Sixth SP Workshop on Statistical Signal and Array Processing Pub Date : 1992-10-07 DOI: 10.1109/SSAP.1992.246834
S. Haykin
{"title":"Chaotic signal processing: new research directions and novel applications","authors":"S. Haykin","doi":"10.1109/SSAP.1992.246834","DOIUrl":"https://doi.org/10.1109/SSAP.1992.246834","url":null,"abstract":"This paper presents a tutorial review of chaotic signal processing, emphasizing its nonlinear dynamical roots, important characteristics, and potential areas of application.<<ETX>>","PeriodicalId":309407,"journal":{"name":"[1992] IEEE Sixth SP Workshop on Statistical Signal and Array Processing","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1992-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114958317","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: 14
On the window selection and the cross terms that exist in the magnitude squared distribution of the short time Fourier transform 短时傅里叶变换的幅度平方分布中存在的窗口选择和交叉项
[1992] IEEE Sixth SP Workshop on Statistical Signal and Array Processing Pub Date : 1992-10-07 DOI: 10.1109/SSAP.1992.246839
S. Kadambe
{"title":"On the window selection and the cross terms that exist in the magnitude squared distribution of the short time Fourier transform","authors":"S. Kadambe","doi":"10.1109/SSAP.1992.246839","DOIUrl":"https://doi.org/10.1109/SSAP.1992.246839","url":null,"abstract":"The short time Fourier transform (STFT), a time-frequency representation, is linear by definition. However, the magnitude squared distribution of the STFT (the spectrogram) which signal processors often use to represent a signal is non-linear by definition. Therefore, in general, there exist cross terms in the spectrogram of a multi-component signal. The existence of these depends on (a) the nature of a multi-component signal, (b) the choice of the STFT analysis window and (c) the window length selection. This paper studies the effect of (i) the choice of the STFT analysis window, and (ii) the nature of signals to be analyzed, on the cross terms, in detail with representative examples.<<ETX>>","PeriodicalId":309407,"journal":{"name":"[1992] IEEE Sixth SP Workshop on Statistical Signal and Array Processing","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1992-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115054174","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
Scale, frequency, time, and the scale transform 尺度，频率，时间，以及尺度变换
[1992] IEEE Sixth SP Workshop on Statistical Signal and Array Processing Pub Date : 1992-10-07 DOI: 10.1109/SSAP.1992.246836
L. Cohen
{"title":"Scale, frequency, time, and the scale transform","authors":"L. Cohen","doi":"10.1109/SSAP.1992.246836","DOIUrl":"https://doi.org/10.1109/SSAP.1992.246836","url":null,"abstract":"The author develops the relationship between time, frequency, and scale, and their respective operators and representations. A scale operator is proposed and its eigenfunctions are obtained. This leads to the scale transform. The convolution and correlation theorems for scale are developed. The concepts of filtering and linear shift-invariant systems are formulated for scale.<<ETX>>","PeriodicalId":309407,"journal":{"name":"[1992] IEEE Sixth SP Workshop on Statistical Signal and Array Processing","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1992-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122877599","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
Detection of multiple chirp signals based on a slice of the instantaneous higher-order moments 基于瞬时高阶矩切片的多重啁啾信号检测
[1992] IEEE Sixth SP Workshop on Statistical Signal and Array Processing Pub Date : 1992-10-07 DOI: 10.1109/SSAP.1992.246841
A. Petropulu
{"title":"Detection of multiple chirp signals based on a slice of the instantaneous higher-order moments","authors":"A. Petropulu","doi":"10.1109/SSAP.1992.246841","DOIUrl":"https://doi.org/10.1109/SSAP.1992.246841","url":null,"abstract":"A time-frequency (T-F) representation is defined which forces the contribution of the auto terms to appear at fixed positions on the T-F plane, while the cross terms appear at positions that vary depending on the particular slice. The choice of the moment slice is not unique as long as it satisfies certain conditions. Considering different moment slices yields different T-F representations. Summing the distributions corresponding to different moment slices, causes only the parts due to the auto terms to add up, since their positions depend only on the signal parameters.<<ETX>>","PeriodicalId":309407,"journal":{"name":"[1992] IEEE Sixth SP Workshop on Statistical Signal and Array Processing","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1992-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114158895","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
On the performance of cumulant-based detection of nonGaussian signals 基于累积量的非高斯信号检测性能研究
[1992] IEEE Sixth SP Workshop on Statistical Signal and Array Processing Pub Date : 1992-10-07 DOI: 10.1109/SSAP.1992.246821
B. Friedlander, B. Porat
{"title":"On the performance of cumulant-based detection of nonGaussian signals","authors":"B. Friedlander, B. Porat","doi":"10.1109/SSAP.1992.246821","DOIUrl":"https://doi.org/10.1109/SSAP.1992.246821","url":null,"abstract":"Detection of a non-Gaussian signal in additive Gaussian noise is assumed to be done in two steps. A selected set of sample cumulants and/or moments of the data are computed; next a detection statistic based on these sample moments/cumulants is evaluated. The paper outlines the asymptotic performance analysis of this detector for a fairly general class of signal and noise models. A simple example is worked out in detail.<<ETX>>","PeriodicalId":309407,"journal":{"name":"[1992] IEEE Sixth SP Workshop on Statistical Signal and Array Processing","volume":"118 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1992-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122061076","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
Instantaneous non-linear operators for tracking multicomponent signal parameters 用于跟踪多分量信号参数的瞬时非线性算子
[1992] IEEE Sixth SP Workshop on Statistical Signal and Array Processing Pub Date : 1992-10-07 DOI: 10.1109/SSAP.1992.246870
R. Kumaresan, A. G. Sadasiv, C. S. Ramalingam, J. Kaiser
{"title":"Instantaneous non-linear operators for tracking multicomponent signal parameters","authors":"R. Kumaresan, A. G. Sadasiv, C. S. Ramalingam, J. Kaiser","doi":"10.1109/SSAP.1992.246870","DOIUrl":"https://doi.org/10.1109/SSAP.1992.246870","url":null,"abstract":"The authors have extended the Kaiser-Teager algorithm for separating the contributions of the amplitude modulation and frequency modulation of a single sinusoid to a signal consisting of multiple components. An instantaneous nonlinear operator turns out to be the determinant of a Toeplitz matrix formed with the signal samples. Because of its instantaneously adaptive nature, this algorithm can be used to track parameter variations in the signal components, provided these variations are not too rapid. This is demonstrated using a synthetic signal containing two AM-FM components and a speech signal. The method's relationship to Prony's method is pointed out.<<ETX>>","PeriodicalId":309407,"journal":{"name":"[1992] IEEE Sixth SP Workshop on Statistical Signal and Array Processing","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1992-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128963780","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: 17
Analytic performance evaluation of cumulant-based FIR system identification methods 基于累积量的FIR系统辨识方法的分析性能评价
[1992] IEEE Sixth SP Workshop on Statistical Signal and Array Processing Pub Date : 1992-10-07 DOI: 10.1109/SSAP.1992.246822
José A. R. Fonollosa, J. Mendel
{"title":"Analytic performance evaluation of cumulant-based FIR system identification methods","authors":"José A. R. Fonollosa, J. Mendel","doi":"10.1109/SSAP.1992.246822","DOIUrl":"https://doi.org/10.1109/SSAP.1992.246822","url":null,"abstract":"The covariances of the third- and fourth-order sample cumulants of stationary processes are derived. The resulting expressions are used to obtain the analytical performance of such methods as a function of the coefficients and statistics of the input sequence. The lower bound in the variance is compared for different sets of sample statistics to provide insight about the information carried by each sample statistic. The effect of the presence of noise on the accuracy of the estimates is studied analytically. The results are illustrated graphically with plots of the variance of the estimates as a function of the parameters or the signal-to-noise ratio. Monte Carlo simulations are included for comparison with the predicted analytical performance.<<ETX>>","PeriodicalId":309407,"journal":{"name":"[1992] IEEE Sixth SP Workshop on Statistical Signal and Array Processing","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1992-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121963386","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
Wavelet decomposition of event related potentials: toward the definition of biologically natural components 事件相关电位的小波分解:走向生物天然成分的定义
[1992] IEEE Sixth SP Workshop on Statistical Signal and Array Processing Pub Date : 1992-10-07 DOI: 10.1109/SSAP.1992.246843
V.J. Samar, M. Raghuveer, K. Swartz, S. Rosenberg, T. Chaiyaboonthanit
{"title":"Wavelet decomposition of event related potentials: toward the definition of biologically natural components","authors":"V.J. Samar, M. Raghuveer, K. Swartz, S. Rosenberg, T. Chaiyaboonthanit","doi":"10.1109/SSAP.1992.246843","DOIUrl":"https://doi.org/10.1109/SSAP.1992.246843","url":null,"abstract":"Transient time-voltage neural waveforms recorded at the scalp are elicited by discrete sensory or perceptual events and thought to be composed of fundamental waveform components. A new definition is proposed of ERP components as 'wavepackets', which are oscillating waveforms that extend throughout the ERP. The wavelet transform is used to extract orthogonal wavepacket components. Each component is restricted to its own frequency band, and may strongly influence the ERPs over local time regions. Unilateral visual field stimulation data from human subjects show that wavepacket components reveal visual processing events earlier than direct amplitude measurements on the ERPs. Wavepackets provide new insights into ERP morphology and its relationship to the timecourse of neural processes.<<ETX>>","PeriodicalId":309407,"journal":{"name":"[1992] IEEE Sixth SP Workshop on Statistical Signal and Array Processing","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1992-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132043280","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
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