雷达极化抗干扰技术进展

Recent Developments of Radar Anti-interference Techniques with Polarimetry

雷达极化抗干扰的本质是利用干扰与目标在极化域的差异,减弱或消除干扰对雷达探测的影响。极化抗干扰已经在主瓣干扰抑制、有源假目标鉴别、角度诱偏干扰对抗等抗干扰难题中显现出独特的作用。随着电子对抗水平的升级,目标与干扰间的差异呈现出细微化的特点,亟需进一步探索雷达抗干扰新技术,以充分挖掘和联合利用包括极化在内的各种差异。文章从发展历史、技术手段、典型应用等方面介绍了雷达极化抗干扰技术的研究进展情况。

The essence of radar anti-interference with polarimetry is to suppress or avoid the effects on radar exploring from the in- terference, by using the polarization difference between radar interference and radar target. Radar anti-interference techniques with polarimetry has been applied successfully for several bottleneck problems, such as main-lobe interference suppression, decoy dis- crimination and anti-angle deception jamming. Due to the upgrade of electronic countermeasure, the difference between interfer- ence and radar target echo becomes inconspicuous. As a result, it is imperative to research into the new radar anti-interference techniques which excavate fully and utilize synthetically all differences including polarimetry. Development history, key technologies, typical applications of radar anti-interference techniques with polarimetry are described in this paper.