雷达学报2018，Vol.7Issue(2)：202-211,10.DOI:10.12000/JR18016
MIMO双基地机载雷达距离模糊杂波抑制方法
A Range-ambiguous Clutter Suppression Method for MIMO Bistatic Airborne Radar
摘要
Abstract
The ground clutter of sidelooking Multiple-Input Multiple-Output (MIMO) bistatic radar has severe problems of range-dependence and clutter spectrum spreading. In this paper, the clutter characteristics of bistatic airborne radars are analyzed and a method of range-ambiguous clutter suppression is proposed. This method employs the range-dependent phase term in the traditional MIMO bistatic radar to provide extra degrees of freedom. The range information of the phase term enables clutter separation with different ranges and consequent suppression. Thus, a range-ambiguous clutter suppression for bistatic airborne early warning radars is achieved. The simulation results show the accuracy of the method. By a comparison with the existing Doppler Warping (DW) and clutter suppression method with the Improved Factor (IF) line, the results showed that the method has better performance, which proved the effectiveness of ambiguous clutter suppression in MIMO bistatic radars.关键词
多输入多输出雷达/双基地体制/频率分集阵列/距离模糊杂波抑制Key words
MIMO radar/Bistatic system/Frequency diverse array/Range ambiguity clutter suppression分类
信息技术与安全科学引用本文复制引用
王宇卓,朱圣棋,许京伟..MIMO双基地机载雷达距离模糊杂波抑制方法[J].雷达学报,2018,7(2):202-211,10.基金项目
国家自然科学基金委创新研究群体项目(61621005),国家重点研发计划"战略性国际科技创新合作"重点专项(2016YFE 0200400),陕西省国际科技合作重点研发计划(2017KW-ZD-12)The National Natural Science Foundation of China Innovation Research Group Project(61621005),The National Key R&D Program of China(2016YFE0200400),The Key R&D Program of Shaanxi Province(2017KW-ZD-12) （61621005）
