有限采样影响下秩减估计器的波达方向估计性能分析

doi:10.3969/j.issn.1000-436x.2013.03.007

Abstract

Abstract:

The DOA estimation performance of the rank reduction estimator(RARE) in the case of finite samples was studied. Based on the perturbation theorem associated with the orthogonal projection matrix of the signal (or noise) sub-space, the first-order and second-order formulas for the DOA estimation errors of the RARE wer derived. Then, the closed-form expressions for mean square error (MSE), bias and direction finding (DF)success probability of the RARE were presented. A variety of numerical experiments concerning some important RARE are conducted to verify the theo-retical analysis.

Key words: rank reduction estimator, MUSIC algorithm, inite samples, mean square error, bias, success probability

Ding WANG,Hui YAO,Ying WU. Direction-of-arrival estimation performance analysis of the rank reduction estimator in the presence of finite samples[J]. Journal on Communications, 2013, 34(3): 53-67.

Figures/Tables 7

References 31

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半径波长比	方位估计均方根误差/o
半径波长比	RARE	互耦存在且已知的MUSIC算法
0.5	0.365 2	0.359 5
0.6	0.328 3	0.322 9
0.7	0.293 6	0.287 0
0.8	0.270 5	0.245 8
0.9	0.325 9	0.204 8
1.0	0.213 5	0.170 9
1.1	0.187 3	0.145 7
1.2	0.167 6	0.127 6
1.3	0.121 4	0.114 7
1.4	0.107 7	0.105 6

Direction-of-arrival estimation performance analysis of the rank reduction estimator in the presence of finite samples

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