摘要
本文分析了相控阵机载预警(AEW)雷达杂波抑制的现有两种辅助通道降维技术(Klemm方法和简化方法)的性能,并提出了一种新的辅助通道方法。新方法的基本思想为根据待处理距离段内各距离单元杂波能量在波束-多普勒域分布的统计特征自适应地选取辅助通道,使所选辅助通道实时地逼近杂波子空间,从而有效抑制杂波。本文方法不但可以用于非正侧视阵情况,而且误差鲁棒性好。计算机仿真结果证实了其有效性。
Based on the performance analysis of two currently employed auxiliary channel processors (ACP), a new ACP approach for clutter suppression is proposed for phased array AEW radar. According to the new method, the auxiliary channels are adaptively selected according to the statistic characteristic of clutter’s energy distribution on Beam-Doppler field over the all range cells within the detecting range bin, which fits precisely the clutter subspace in time, hence the clutter can be effectively suppressed. The new method can be applied to non-side-viewed array, having strong robustness to amplitude-phase errors of the array. Simulation results verify the effectiveness of this approach.
出处
《电路与系统学报》
CSCD
2004年第6期100-104,共5页
Journal of Circuits and Systems
基金
"十五"军事电子预研基金资助项目(413070502)
武器装备预研基金联合资助项目(51407030101DZ01)
关键词
相控阵AEW雷达
辅助通道
杂波抑制
phased array AEW radar
auxiliary channel
clutter suppression
