Abstract: Due to the rapid development of electronic technologies, antijamming has become a great challenge to radars. An adaptive polarization canceller algorithm which benefits from the selectivity of dual polarization radars is presented. This algorithm uses the jamming sampling data to calculate the optimum weight coefficient based on the least output power rule and is applied to the target sampling data to achieve jamming cancellation. Simulations and examinations prove the performance of the algorithm.

Key words: horizontal polarization, vertical polarization, dual polarization, adaptive polarization, polarization canceller, antijamming

摘要： 现代战场,电磁环境越来越复杂,电子对抗越来越激烈,抗干扰问题成为每一部雷达都需要面临的巨大挑战。提出了一种基于双极化接收雷达的自适应极化对消抗干扰方法,利用天线对不同入射波在极化域的选择性来改善有用信号的接收质量。本方法利用干扰采样数据段,基于最小干扰输出功率准则估计两极化通道间对消权系数,应用于回波数据段,实现干扰对消。仿真和试验数据表明,该方法能够较好地抑制干扰信号。

关键词: 水平极化, 垂直极化, 双极化接收, 自适应极化, 极化对消, 抗干扰