On detection performance of MIMO radar for Rician target

被引：9
作者：
Tang Jun [1 ]
Wu Yong [1 ]
Peng YingNing [1 ]
Wang XiuTan [1 ]
机构：
[1] Tsinghua Univ, Dept Elect Engn, Beijing 100084, Peoples R China
来源：
SCIENCE IN CHINA SERIES F-INFORMATION SCIENCES | 2009年 / 52卷 / 08期
基金：
中国国家自然科学基金;
关键词：
MIMO radar; relative entropy; Rician target; detection performance;
D O I：
10.1007/s11432-009-0134-5
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
By using spatial diversity, multiple-input-multiple-output (MIMO) radar can improve detection performance for fluctuating targets. In this paper, we propose a spatial fluctuation target model for MIMO radar, where targets are classified as non-fluctuating target, Rayleigh target and Rician target. Based on Stein's lemma, we use relative entropy to study detection performance of optimum detector for Rician target. It is found that in low signal noise ratio (SNR) region, the performance improvement of MIMO radar for detecting Rician target depends on array gain, which is related to the number of receivers. In high SNR region, the improvement of performance depends on diversity gain, which is related to the product of the number of receivers and the number of transmitters. The conclusions of this paper are important for designing MIMO radar system.
引用
收藏
页码：1456 / 1465
页数：10
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