项目名称: MIMO雷达抗有源干扰波形与阵列联合优化方法研究
项目编号: No.61301281
项目类型: 青年科学基金项目
立项/批准年度: 2014
项目学科: 无线电电子学、电信技术
项目作者: 张娟
作者单位: 西安电子科技大学
项目金额: 24万元
中文摘要: MIMO雷达因其优良的目标分辨能力和参数估计性能成为目前雷达界的研究热点,当MIMO雷达所要探测的目标处于有源干扰环境中时,雷达的性能会下降。此时,MIMO雷达接收到的有源干扰信号中仅包含干扰接收通道的信息,不包含发射通道的信息,采用传统的自适应波束置零算法只利用了接收端的系统自由度,没有有效利用MIMO雷达发射端的自由度以及波形分集的优势。MIMO雷达在接收端所获得的目标与干扰方向的空间能量分布与发射波形和收发阵列有关,通过对发射信号和收发阵列进行联合优化设计,可以更加灵活的对MIMO雷达波形域资源和空域资源进行调度和分配。本项目拟研究MIMO雷达抗有源干扰发射波形优化方法、收发阵列布阵优化方法以及波形与阵列联合优化方法,通过发射波形的设计、发射功率的分配以及收发阵列的优化布阵提高MIMO雷达抗有源干扰性能,为MIMO走向实际应用奠定理论基础。
中文关键词: MIMO雷达;有源干扰;波形设计;阵列优化;
英文摘要: MIMO radar is becoming popular because of the improvement of resolve ability and parameter estimation accuracy. When MIMO radar facing with active jamming, the performance is will reduced. Only the receiving channel information is included in the active jamming echo of MIMO radar, if the adaptive beamforming methods are used to cancellation the jamming, the anti-jamming performance is the same with phased array radar. because of the lack of the transmitted channel information,waveform diversity and freedom degree on the transmitted end are not used. Joint optimization of waveform and receiving-transmitting array can be used to allocate the resource of waveform and space efficiently. The waveform optimization, array optimization and joint optimization for waveform and array for MIMO radar anti-active jamming will be researched in this project to establish the theoretical foundation for the practice of MIMO radar and improve the performance of MIMO radar anti-jamming.
英文关键词: MIMO radar;active jamming;waveform design;array optimization;