现代电子技术2018，Vol.41Issue(11)：8-12,5.DOI:10.16652/j.issn.1004-373x.2018.11.003
目标先验知识未确知条件下MIMO雷达波形优化
Waveform optimization of MIMO radar with imperfect target prior knowledge
摘要
Abstract
In this paper,the robust waveform optimization method to improve the worst-case estimation performance of multiple-input multiple-output(MIMO)radar in the clutter environment is considered. According to the min-max approach,the robust waveform optimization is described on the basis of Cramér-Rao bound(CRB). In order to solve the complicated nonlinear problem, an iterative method based on diagonal loading (DL) is proposed. With the method,the inlayer optimization problem can be decomposed into some sub-problems first by means of the Hadamard inequation,and then these sub-problems are converted into the convex problem on the basis of DL method;the outer layer optimization problem can be also converted into the convex problem to get the effective solution of these optimization problems. The optimal solution of the original optimization problem can be obtained by means of the least squares (LS) fitting of the iterative optimization results. The efficiency of the proposed method was verified with numerical simulation.关键词
多输入多输出雷达/波形优化/对角加载/参数估计/半定规划/最小二乘Key words
multiple-input multiple-output radar/waveform optimization/diagonal loading/parameter estimation/semidefi-nite programming/least square分类
信息技术与安全科学引用本文复制引用
雷晓艳,王洪雁..目标先验知识未确知条件下MIMO雷达波形优化[J].现代电子技术,2018,41(11):8-12,5.基金项目
国家自然科学基金资助项目:提高复杂环境下地面慢速目标检测性能的MIMO-STAP 理论研究(61301258)Project Supported by National Natural Science Foundation of China:Research on the Theory for MIMO-STAP to Improve the Detection Performance of Ground Slowly Moving Target in Complex Environments(61301258) （61301258）
