相干MIMO雷达是扩大接收天线口径的有效手段。通过分析,相干MIMO雷达的关键技术主要包括子阵面之间校准技术、栅瓣抑制技术、近场多源定位技术。文中对3大关键技术进行了深入分析,提出了解决途径,并对关键技术的解决途径进行仿真分析和实际工程验证,结果表明该方法是有效的。

The coherent multi-input multi-output (MIMO) radar is one of the effective ways to expand the aperture of the array antenna. The key technologies of the coherent MIMO is as following: 1) array monitor between the sub-array; 2) grating lobe suppression; 3) near-field multiple source location. In this paper, three key technologies are analyzed in detail, and the solutions are presented. Simulation and engineering applications are used to valid the new method proposed in the paper.