摘要
MIMO雷达是近几年发展起来的一种新体制雷达,已成为雷达领域中的研究热点。结合机载MIMO雷达在采用子阵级阵列处理时遇到的栅瓣问题,本文介绍了规则子阵划分方法,将时分虚拟技术应用到MIMO雷达中,引出时分虚拟重叠发射子阵技术,分析了不同划分方法下的波束形成并给出仿真结果和分析结论,得到一些有用结果。对当前研究的机载MIMO雷达子阵划分及栅瓣抑制问题有一定意义。
The multiple-input multiple-output （MIMO） radar is a new type of radar system developed in recent years, and has been become a research hotspots in the filed of radar. Combining problem of grating lobes occurred in adopting array processing at subarray level of airborne MIMO radar, a regular subarray division approach is proposed. Applying a time division virtual technique to MIMO radar deviates an time division virtual overlapped transmit subarray technique. Beamforming based on using different division approaches is analyzed and the simulated results and analyzed conclusion are given. Some useful conclusions are drawn. And these are meaningful in current researching subarray division and grating lobe rejection of airborne MIMO radar.
出处
《火控雷达技术》
2011年第4期81-86,共6页
Fire Control Radar Technology
关键词
MIMO雷达
子阵划分
栅瓣
时分虚拟重叠子阵
MIMO radar
subarray division
grating lobe
time division virtual overlapping subarray
