文章基本信息

标题：Improving The Performance Of 3-D Sensor Array By Rotation
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作者：Ayesha Naaz ; Rameshwar Rao
期刊名称：International Journal of Distributed and Parallel Systems
印刷版ISSN：2229-3957
电子版ISSN：0976-9757
出版年度：2012
卷号：3
期号：2
DOI：10.5121/ijdps.2012.3214
出版社：Academy & Industry Research Collaboration Center (AIRCC)
摘要：In this paper, a method is proposed to improve the performance of 3-D array for DOA estimation. Cancellation of ground clutter received at the array (of sensors) is an important problem to be considered. The approach being addressed to reduced the clutter is based on rotating the 3-D array (a cubical array) by a fixed angle in all the three directions simultaneously. The computer simulations carried out showed that this method was capable of resolving closely spaced sources and also yielded optimum performance in achieving direction of arrivals. Compared to normal cubical array with the same number of elements, the rotated array provides a significant DOA accuracy. Further simulations were also carried out for various angles of rotation.
关键词：3-D array geometry; MUSIC; DOA ; rotation