发布求助
文献互助 智能选刊 最新文献

信号处理最新文献

筛选
英文 中文
MRC receiver performance with MQAM in correlated Rician fading channels 基于MQAM的MRC接收机在相关衰落信道中的性能
信号处理 Pub Date : 2001-08-06 DOI: 10.1109/SSP.2001.955259
Chunhua Yang, G. Bi, A. R. Leyman
{"title":"MRC receiver performance with MQAM in correlated Rician fading channels","authors":"Chunhua Yang, G. Bi, A. R. Leyman","doi":"10.1109/SSP.2001.955259","DOIUrl":"https://doi.org/10.1109/SSP.2001.955259","url":null,"abstract":"Due to difficulties in deriving the probability density function, the performance of the maximal ratio combining (MRC) diversity receiver in correlated Rician fading channels is rarely reported in the literature. This article shows that the difficulty can be avoided by a linear transformation technique. General closed-form expressions of the average symbol error rate (SER) for various modulation schemes can be easily derived. As an example, this paper derives the SER of multilevel quadrature amplitude modulation (MQAM) over correlated Rician fading channels.","PeriodicalId":70952,"journal":{"name":"信号处理","volume":"20 1","pages":"210-212"},"PeriodicalIF":0.0,"publicationDate":"2001-08-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82354709","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
Detection of independent timing jitter in sinusoidal measurements 正弦测量中独立定时抖动的检测
信号处理 Pub Date : 2001-08-06 DOI: 10.1109/SSP.2001.955252
M. Morelande, D. R. Iskander
{"title":"Detection of independent timing jitter in sinusoidal measurements","authors":"M. Morelande, D. R. Iskander","doi":"10.1109/SSP.2001.955252","DOIUrl":"https://doi.org/10.1109/SSP.2001.955252","url":null,"abstract":"Two detectors of symmetrically distributed independent timing jitter in a data record composed of a complex harmonic in additive white Gaussian noise are proposed. The proposed detectors are computationally efficient and, although they are formulated using asymptotic results, they may be effectively used with small sample lengths under a wide range of conditions. The performances of the detectors are analysed using simulations and theoretical results.","PeriodicalId":70952,"journal":{"name":"信号处理","volume":"23 1","pages":"182-185"},"PeriodicalIF":0.0,"publicationDate":"2001-08-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82428025","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
Frequency estimation utilizing the Hadamard transform 利用阿达玛变换进行频率估计
信号处理 Pub Date : 2001-08-06 DOI: 10.1109/SSP.2001.955309
T. Andersson, M. Skoglund, P. Handel
{"title":"Frequency estimation utilizing the Hadamard transform","authors":"T. Andersson, M. Skoglund, P. Handel","doi":"10.1109/SSP.2001.955309","DOIUrl":"https://doi.org/10.1109/SSP.2001.955309","url":null,"abstract":"Fast analog to digital conversion with only one bit per sample not only makes high sampling rates possible but also reduces the required hardware complexity. For short data buffers or block lengths, it has been shown that tone frequency estimators can be implemented by a simple table look-up. We present an analysis of such tables using the Hadamard transform. As an outcome of the analysis, we propose a class of nonlinear estimators of low complexity. Their performance is evaluated using numerical simulations. Comparisons are made with the proper Cramer-Rao bound and with the table look-up approach.","PeriodicalId":70952,"journal":{"name":"信号处理","volume":"25 1","pages":"409-412"},"PeriodicalIF":0.0,"publicationDate":"2001-08-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86675190","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
Iterative algorithm for the estimation of distributed sources localization parameters 分布式源定位参数估计的迭代算法
信号处理 Pub Date : 2001-08-06 DOI: 10.1109/SSP.2001.955339
A. P. Iserte, A. Pérez-Neira, M.A.L. Hernandez
{"title":"Iterative algorithm for the estimation of distributed sources localization parameters","authors":"A. P. Iserte, A. Pérez-Neira, M.A.L. Hernandez","doi":"10.1109/SSP.2001.955339","DOIUrl":"https://doi.org/10.1109/SSP.2001.955339","url":null,"abstract":"We present a novel algorithm for the estimation of the direction of arrival and angular distribution parameters of sources that, as a result from the scattering effects, cannot be considered as punctual. The algorithm is iterative and is based on the maximization of the likelihood function associated to the received snapshots at the antenna array (ML). It is proposed a computationally efficient method for estimating the localization and angular distribution parameters of more than one source transmitting at the same frequency in a noisy environment. This algorithm solves the problem of the joint maximization in the case of two sources by formulating two new problems of a single-source ML.","PeriodicalId":70952,"journal":{"name":"信号处理","volume":"80 1","pages":"528-531"},"PeriodicalIF":0.0,"publicationDate":"2001-08-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73347446","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
An efficient design or fractional-delay digital FIR filters using the Farrow structure 采用法罗结构设计了一种高效的分数延迟数字FIR滤波器
信号处理 Pub Date : 2001-08-06 DOI: 10.1109/SSP.2001.955357
C. Pun, Y. Wu, S. Chan, K. Ho
{"title":"An efficient design or fractional-delay digital FIR filters using the Farrow structure","authors":"C. Pun, Y. Wu, S. Chan, K. Ho","doi":"10.1109/SSP.2001.955357","DOIUrl":"https://doi.org/10.1109/SSP.2001.955357","url":null,"abstract":"Fractional-delay digital filter (FD-DF), implemented using the Farrow (1988) structure, is very attractive in providing online tuning delay of digital signals. This paper proposes a new method for the design of such Farrow-based FD-DF using sum-of-powers-of-two (SOPOT) coefficients. Using the SOPOT coefficient representation, coefficient multiplication can be implemented with limited number of shifts and additions. Design examples show that the proposed method can greatly reduce the design time and complexity of the Farrow structure while providing comparable phase and amplitude responses.","PeriodicalId":70952,"journal":{"name":"信号处理","volume":"93 1","pages":"595-598"},"PeriodicalIF":0.0,"publicationDate":"2001-08-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79614405","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: 12
Monobit receiver for electronic warfare 用于电子战的单比特接收器
信号处理 Pub Date : 2001-08-06 DOI: 10.1109/SSP.2001.955241
J. Grajal, R. Blazquez, G. Lopez, J. M. Sanz, M. Burgos
{"title":"Monobit receiver for electronic warfare","authors":"J. Grajal, R. Blazquez, G. Lopez, J. M. Sanz, M. Burgos","doi":"10.1109/SSP.2001.955241","DOIUrl":"https://doi.org/10.1109/SSP.2001.955241","url":null,"abstract":"Two opposite requirements for digital broadband electronic warfare receivers are detection of simultaneous signals and real time operation. The monobit receiver represents an attempt to achieve both characteristics at the expense of low instantaneous dynamic range. This paper presents a detailed theoretical and experimental analysis and characterization of the performance of this promising receiver.","PeriodicalId":70952,"journal":{"name":"信号处理","volume":"28 1","pages":"138-141"},"PeriodicalIF":0.0,"publicationDate":"2001-08-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79002631","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
Recursive semi-blind equalizer for time-varying MIMO channels 时变MIMO信道的递归半盲均衡器
信号处理 Pub Date : 2001-08-06 DOI: 10.1109/SSP.2001.955279
M. Enescu, M. Sirbu, V. Koivunen
{"title":"Recursive semi-blind equalizer for time-varying MIMO channels","authors":"M. Enescu, M. Sirbu, V. Koivunen","doi":"10.1109/SSP.2001.955279","DOIUrl":"https://doi.org/10.1109/SSP.2001.955279","url":null,"abstract":"This paper addresses the problem of semi-blind multi-input multi-output (MIMO) equalization of time-varying channels by employing recursive filtering methods. Based on a realistic channel model described in COST 207 project, we derive a state-space model that characterizes the behavior of the channel in time. The channel estimation and tracking are performed using a Kalman filter method, and a decision feedback equalizer derived using MMSE criterion is used to perform the equalization.","PeriodicalId":70952,"journal":{"name":"信号处理","volume":"28 1","pages":"289-292"},"PeriodicalIF":0.0,"publicationDate":"2001-08-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80020243","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
A hyperbolic LMS algorithm for CORDIC based realization 基于CORDIC实现的双曲LMS算法
信号处理 Pub Date : 2001-08-06 DOI: 10.1109/SSP.2001.955300
M. Chakraborty, S. Pervin, T. S. Lamba
{"title":"A hyperbolic LMS algorithm for CORDIC based realization","authors":"M. Chakraborty, S. Pervin, T. S. Lamba","doi":"10.1109/SSP.2001.955300","DOIUrl":"https://doi.org/10.1109/SSP.2001.955300","url":null,"abstract":"An alternate formulation of the LMS algorithm is presented by expressing the mean square error as a convex function of a set of hyperbolic variables that are monotonically related to the filter tap weights. The proposed algorithm is ideally suited to CORDIC-based realization and possesses very good convergence characteristics as revealed via extensive simulation studies.","PeriodicalId":70952,"journal":{"name":"信号处理","volume":"147 1","pages":"373-376"},"PeriodicalIF":0.0,"publicationDate":"2001-08-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76087582","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
Wigner distribution reconstruction from two projections 从两个投影重建Wigner分布
信号处理 Pub Date : 2001-08-06 DOI: 10.1109/SSP.2001.955288
T. Alieva, Mj Martin Bastiaans, L. Stanković
{"title":"Wigner distribution reconstruction from two projections","authors":"T. Alieva, Mj Martin Bastiaans, L. Stanković","doi":"10.1109/SSP.2001.955288","DOIUrl":"https://doi.org/10.1109/SSP.2001.955288","url":null,"abstract":"The connection between the instantaneous frequency and the angle derivative of the fractional power spectra is established. It permits to solve the signal retrieval problem if only two close fractional power spectra are known. This fact is used in the reconstruction of the Wigner distribution or the pseudo Wigner distribution from two close projections.","PeriodicalId":70952,"journal":{"name":"信号处理","volume":"5 1","pages":"325-328"},"PeriodicalIF":0.0,"publicationDate":"2001-08-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87654077","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
A robust technique for array interpolation using second-order cone programming 使用二阶锥规划的阵列插值鲁棒技术
信号处理 Pub Date : 2001-08-06 DOI: 10.1109/SSP.2001.955261
M. Pesavento, A. Gershman, Z. Luo
{"title":"A robust technique for array interpolation using second-order cone programming","authors":"M. Pesavento, A. Gershman, Z. Luo","doi":"10.1109/SSP.2001.955261","DOIUrl":"https://doi.org/10.1109/SSP.2001.955261","url":null,"abstract":"We consider Friedlander's(1993) array interpolation technique, whose main shortcoming in multi-source scenarios is that it does not provide sufficient robustness against sources arriving outside specified interpolation sectors. We propose a new interpolation approach which incorporates such robustness property. Our technique minimizes the interpolation error inside the sector of interest while setting multiple \"stopband\" constraints outside this sector to prevent performance degradation effects caused by out-of-sector sources. Based on such robust approach to array interpolation, we develop convex formulations of the interpolation matrix design problem using second-order cone (SOC) programming.","PeriodicalId":70952,"journal":{"name":"信号处理","volume":"30 1","pages":"217-220"},"PeriodicalIF":0.0,"publicationDate":"2001-08-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90385754","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
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