Cramer-Rao lower bound for DOA estimation using vector and higher-order sensor arrays

被引：0
|
作者：
Lai, Hung [1 ]
Bell, Kristine [2 ]
机构：
[1] Lockheed Martin, Arlington, VA 13827 USA
[2] George Mason Univ, Fairfax, VA 22030 USA
来源：
CONFERENCE RECORD OF THE FORTY-FIRST ASILOMAR CONFERENCE ON SIGNALS, SYSTEMS & COMPUTERS, VOLS 1-5 | 2007年
关键词：
D O I：
暂无
中图分类号：
TP3 [计算技术、计算机技术];
学科分类号：
0812 ;
摘要：
The Cramer-Rao lower bound for estimating the azimuth and elevation angles of multiple planewave sources using a line array of general n(th)-order sensors is derived, generalizing the results of Nehorai and Paldi (1994) [1] for vector (first order) sensors. An analytical framework using spherical harmomics is used to derive the bound and the MVDR estimator for the higher order sensor array. Theoretical and simulation results for both a single higher-order sensor and a vertical line array are presented.
引用
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页码：1262 / +
页数：2
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