电子学报2017，Vol.45Issue(9)：2092-2097,6.DOI:10.3969/j.issn.0372-2112.2017.09.006
基于交替投影的MIMO雷达信号盲分离算法研究
Blind Separation of MIMO Radar Signals Based on Alternating Projection
摘要
Abstract
Exploiting brisk transmit waveforms and elaborate array configuration,multiple-input-multiple-output (MI-MO) radar system has significant advantages in weak-target detection and high-resolution parameter estimation.In this paper,a mathematical model is established for interception,reconnaissance and identification of MIMO radar signals.By using maximum likelihood estimation and alternating projection,an algorithm which makes use of the constant modulus property of the radar signals is proposed for blind separation of MIMO radar signals.Both theoretical and numerical results are provided to demonstrate the performance of the proposed algorithm.It is shown that,if the signal to noise ratio (SNR) is higher than 0dB,the proposed algorithm can achieve a satisfactory separation performance and the correlations of the separated signals with the original signals are very high.Moreover,the proposed algorithm significantly outperforms the existing non-circular complex fast independent component analysis (NC-Fast ICA) algorithm.关键词
MIMO雷达/信号盲分离/最大似然估计/交替投影/恒模特性Key words
multiple-input-multiple-output (MIMO) radar/signal blind separation/maximum likelihood estimation/alternating projection/constant modulus property分类
信息技术与安全科学引用本文复制引用
唐波,张玉,张浩..基于交替投影的MIMO雷达信号盲分离算法研究[J].电子学报,2017,45(9):2092-2097,6.基金项目
国家自然科学基金(No.61671453,No.61201379) （No.61671453,No.61201379）
安徽省自然科学基金(No.1608085MF123) （No.1608085MF123）
