SNR准则下的认知MIMO雷达波形设计  

Cognitive MIMO Radar Waveform Design Based on SNR Criterion

作　　者：张鑫[1] 崔琛[1] 

机构地区：[1]解放军电子工程学院,合肥230037

出　　处：《火力与指挥控制》2012年第12期128-131,共4页Fire Control & Command Control

基　　金：国家自然科学基金资助项目(61040007)

摘　　要：研究了MIMO雷达信号模型下基于最大化信噪比(SNR)准则的最优和稳健波形设计问题。根据对目标冲击响应功率谱密度(PSD)确定和不确定两种条件的分析,推导了最优波形和稳健波形的闭式表达式。仿真结果表明,当目标冲激响应PSD的先验知识准确时,使用最优波形作为发射波形,在接收端获得在给定条件下最优的SNR;当目标冲击响应PSD的先验知识不准确时,使用稳健波形作为发射波形,能够降低目标冲激响应PSD的不确定性对输出端信噪比(SNR)的负面影响。The optimum and robust waveform design methods are studied for MIMO radar based on SNR criterion in this paper.And the closed form of optimum and robust waveform are derived on the basis of the analysis of condition that the power spectrum density of target impulse response is certain and uncertain.The numerical experiments indicate that the optimum SNR is achieved if the optimum waveform is used as the waveform and the PSD of the target impulse response is certain,and the robust waveform is used to weaken the negative affection on SNR when the PSD of the target impulse response is uncertain.

关 键 词：波形设计 认知MIMO雷达 SNR准则 功率谱密度 

分 类 号：TN958[电子电信—信号与信息处理]