2008 5th IEEE Sensor Array and Multichannel Signal Processing Workshop最新文献_第8页

A low complexity decoding scheme for quasi-orthogonal space-time block coding 准正交空时分组编码的低复杂度译码方案

2008 5th IEEE Sensor Array and Multichannel Signal Processing Workshop Pub Date : 2008-07-21 DOI: 10.1109/SAM.2008.4606813

C. Jiang, Haixia Zhang, D. Yuan, Hsiao-Hwa Chen

引用次数: 14

Blind detection of exclusive source activity periods in reverberant acoustic environments 混响声环境中唯一声源活动周期的盲检测

2008 5th IEEE Sensor Array and Multichannel Signal Processing Workshop Pub Date : 2008-07-21 DOI: 10.1109/SAM.2008.4606894

R. M. Nickel

引用次数: 0

Rapid prototyping of a cost effective and flexible 4×4 mimo testbed 快速原型的成本效益和灵活4×4 mimo测试平台

2008 5th IEEE Sensor Array and Multichannel Signal Processing Workshop Pub Date : 2008-07-21 DOI: 10.1109/SAM.2008.4606812

Douglas Kim, Murat Torlak

{"title":"Rapid prototyping of a cost effective and flexible 4×4 mimo testbed","authors":"Douglas Kim, Murat Torlak","doi":"10.1109/SAM.2008.4606812","DOIUrl":"https://doi.org/10.1109/SAM.2008.4606812","url":null,"abstract":"In this paper, we present the design of a low cost 4 times 4 multiple in multiple out (MIMO) wireless communications system testbed. Over recent years, an increasing number of research laboratories have begun experimental studies aimed at evaluating the achievable performance gains of MIMO technology as proposed in theory. The complexity of the experimental test platforms employed by these institutions have also increased over the years, supporting greater numbers of antennas while providing even more real-time computational processing power. These tremendous increases in capability, however, come at a very steep price which the vast majority of the wireless research community cannot afford. As an alternative, we present the design of a low cost 4 times 4 MIMO testbed for researchers solely interested in analyzing the physical layer performance of various MIMO technologies. As a demonstration of our testbed capabilities, we also present the results of a direction of arrival (DOA) experiment using the MUSIC algorithm and also cite another body of work on the experimental performance analysis of space, time, polarization diversity schemes which was also completed with use of the MIMO testbed described herein.","PeriodicalId":422747,"journal":{"name":"2008 5th IEEE Sensor Array and Multichannel Signal Processing Workshop","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125026502","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: 10

The effect of energy measurements on improving the range and bearing estimation in a hybrid energy and TDOA localization system 在能量和TDOA混合定位系统中，能量测量对改进距离和方位估计的作用

2008 5th IEEE Sensor Array and Multichannel Signal Processing Workshop Pub Date : 2008-07-21 DOI: 10.1109/SAM.2008.4606828

Ming Sun, K. C. Ho

引用次数: 1

New subspace updating algorithm for adaptive direction estimation and tracking and its statistical analysis 一种新的自适应方向估计与跟踪子空间更新算法及其统计分析

2008 5th IEEE Sensor Array and Multichannel Signal Processing Workshop Pub Date : 2008-07-21 DOI: 10.1109/SAM.2008.4606850

J. Xin, Nanning Zheng, A. Sano

引用次数: 0

Detection and localization of emitters in the presence of multipath using a uniform linear antenna array 使用均匀线性天线阵列检测和定位存在多路径的发射器

2008 5th IEEE Sensor Array and Multichannel Signal Processing Workshop Pub Date : 2008-07-21 DOI: 10.1109/SAM.2008.4606903

U. Sarac, F. K. Harmanci, T. Akgul

{"title":"Detection and localization of emitters in the presence of multipath using a uniform linear antenna array","authors":"U. Sarac, F. K. Harmanci, T. Akgul","doi":"10.1109/SAM.2008.4606903","DOIUrl":"https://doi.org/10.1109/SAM.2008.4606903","url":null,"abstract":"In this paper, we present a new application of the likelihood ratio test to solve the problem of enumeration and localization of multiple emitters (sources) with a uniform linear antenna array in a multi-path environment. First, spatial smoothing is applied to the antenna array data to decorrelate signals corresponding to each path in the estimated correlation matrix and the number of paths is then counted using an information theoretic criterion. Then, MUSIC is applied with this correlation matrix to estimate the angle of arrival of all possible incident paths. In our signal model, we assume that the correlation between signals from two paths is one if they originate from the same source but zero if they are from different sources. The likelihood ratio test is then applied to each path pair using this correlation model and the angles of arrival estimated by MUSIC in order to find out if the path pair originates from the same emitter, and hence the number of emitters and their angles of arrival are estimated. The proposed algorithm on the likelihood ratio test is compared with the correlation coefficient algorithm based on minimum variance beamforming with a performance analysis.","PeriodicalId":422747,"journal":{"name":"2008 5th IEEE Sensor Array and Multichannel Signal Processing Workshop","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126860072","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 information theoretic criterion for source number detection using the eigenvalues modified by Gerschgorin radius 利用格schgorin半径修正的特征值检测源数的信息理论准则

2008 5th IEEE Sensor Array and Multichannel Signal Processing Workshop Pub Date : 2008-07-21 DOI: 10.1109/SAM.2008.4606899

Qunfei Zhang, Juan Ma, Jianguo Huang

引用次数: 3

A performance bound for MIMO-OFDM channel estimation and prediction MIMO-OFDM信道估计与预测的性能界

2008 5th IEEE Sensor Array and Multichannel Signal Processing Workshop Pub Date : 2008-07-21 DOI: 10.1109/SAM.2008.4606842

M. Larsen, A. Swindlehurst, T. Svantesson

引用次数: 8

DOA Estimation of multipath clusters in WiMedia UWB systems WiMedia UWB系统中多路径簇的DOA估计

2008 5th IEEE Sensor Array and Multichannel Signal Processing Workshop Pub Date : 2008-07-21 DOI: 10.1109/SAM.2008.4606835

A. K. Marath, A. R. Leyman, H. K. Garg

{"title":"DOA Estimation of multipath clusters in WiMedia UWB systems","authors":"A. K. Marath, A. R. Leyman, H. K. Garg","doi":"10.1109/SAM.2008.4606835","DOIUrl":"https://doi.org/10.1109/SAM.2008.4606835","url":null,"abstract":"Ultra wideband (UWB) systems are expected to find widespread use in future short range applications. Increasing popularity of these devices will require management of occupied spectrum in spatial domain to keep the interference low. In UWB systems, one encounters many multipath components. By optimally forming beams in the direction of the principal multipath clusters, one can achieve optimum spectrum efficiency. The number of components would depend on the sampling rate as the number of resolvable components depends on it. Besides, many of the multipath components would be coming from the same cluster. The estimation of the Direction of Arrival (DOA) of these clusters is very useful to focus the transmit power in the optimum direction. A new algorithm, exploiting the known pilot signals of multiband UWB systems for estimation of DOA of clusters in the presence of inband interferers is proposed in this paper. By making use of a new matrix incorporating the cross correlation between the focused UWB signal and the known pilot signal of the transmitted data in each array element, one would be able to separate the multipath clusters from a single source. It is proven that the proposed new matrix would span the same subspace as the direction of arrival vectors and the eigen vectors corresponding to the zero eigen value of the product of this new matrix with its Hermitian would span the orthogonal compliment of the DOA subspace. Computer experiments are included to verify the performance of the proposed algorithm.","PeriodicalId":422747,"journal":{"name":"2008 5th IEEE Sensor Array and Multichannel Signal Processing Workshop","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128898547","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

Broadband beamspace adaptive beamforming with spatial-only information 仅空间信息的宽带波束空间自适应波束形成

2008 5th IEEE Sensor Array and Multichannel Signal Processing Workshop Pub Date : 2008-07-21 DOI: 10.1109/SAM.2008.4606883

W. Liu, S. Weiss

引用次数: 7