与无线通信共存的MIMO雷达波形设计方法研究

The project studies signaling strategies and waveform set designs for the multiple-input multiple-output (MIMO) radar configuration coexisting with MIMO wireless communications. Under the framework of MIMO radar-communication coexistence, the MIMO radar needs to properly design transmit strategies and to devise suitable waveform sets in order to mitigate the interference from MIMO communications. In this context, the project focuses on studying the aspects that include the mutual interference between the MIMO radar and MIMO communications, the information embedding, the radar-radiation-introduced clutter, and the complex radar clutter and non-cooperative active jamming progressively for the waveform design research. Advanced transmit strategies and designs are to be studied and therefore proposed for the purpose of mutual interference suppression and information embedding, based on which the joint design of multi-waveform transmission and adaptive receive signal processing that meanwhile enables the mitigation of radar clutter is conducted. Moreover, with respect to the complex radar clutter and active jamming which involves issues such as Doppler uncertainties, the space-(fast and/or slow) time waveform design for MIMO radar-communication co-existence is also to be studied. The project generates a series of optimization designs, for which efficient and fast algorithms with superior performance are to be developed.

本项目拟针对多输入多输出（MIMO）雷达和MIMO无线通信共存体制框架下的MIMO雷达波形设计方法开展研究。在MIMO雷达与无线通信共存体制下，雷达和通信之间互扰的介入使得MIMO雷达需要对发射策略和发射波形集进行精心设计。针对此背景，项目主要开展将MIMO雷达和无线通信间互扰、通信信息嵌入、雷达信号相关杂波、以及复杂杂波与非合作主动干扰等逐级纳入考虑的MIMO雷达发射波形集策略与设计技术研究。首先研究并提出对抗互扰且实现通信信息嵌入的数种发射波形集或波束域策略设计方法，在此基础上开展基于发射波形集/波束域和接收自适应信号处理进行联合设计的研究，实现对雷达相关杂波的同时抑制。进一步地，针对带有诸如多普勒不确定性等问题的复杂雷达杂波和非合作干扰，研究并提出MIMO雷达空-（快、慢）时域波形集的系列设计方法。针对上述研究所产生的不同优化设计问题，项目致力于研究出其高效、快速的求解方法。

本项目针对MIMO雷达和无线通信共存体制频谱资源高效利用的现实需求，以雷达为主体，开展共存体制下的发射策略和信号波形集设计方法研究，具体包括MIMO雷达-通信共存体制下信号多波形集设计理论与方法、共存发射策略设计、发射信号波形与接收联合优化处理、杂波及干扰背景下的空-（快、慢）时域一体化理论与方法等。项目突破了雷达-通信共存背景下以雷达为主体的发射信号波形集的大规模快速产生、常模等约束限制下非凸优化棘手设计问题求解、模糊性能评价等关键科学问题，公开发布了数项信号波形集设计的原创快速算法，并与目前国际上公开的先进算法进行了充分的仿真测试对比。项目研究成果发表学术论文16篇，其中在IEEE TSP、TAES等期刊论文5篇，IEEE ICASSP、EUSIPCO、IEEE雷达会议等会议论文11篇。