对机载相控阵雷达STAP技术的旁瓣干扰

Study of Sidelobe Jamming on Airborne Phased Array Radar STAP Technology

空时自适应处理(STAP)是一种有效的抗干扰技术。介绍机载相控阵雷达STAP技术检测动目标的基本原理,提出了基于灵巧噪声的旁瓣干扰方法。研究了灵巧噪声的具体干扰样式,利用其经雷达MTD处理后在距离-多普勒域都展宽的特性形成大量假动目标,当假动目标的距离-多普勒信息与待检测通道吻合时将产生响应输出形成欺骗干扰,以扰乱目标的正常检测,理论分析和仿真结果证明了干扰的可行性和有效性。

Space Time Adaptive Processing （STAP） is a kind of effective anti-jamming technology. This paper introduces the fundamental principle of moving target detection of airborne phased array radar STAP technology,proposes a method of sidelobe jamming based on smart noise, uses the features of extension in range and Doppler domain after Moving Target Detection （MTD） to form many false moving targets. When the range and Doppler information of false target is identical with the detection unit,it will realize cheating jamming to influence the normal detection of true target. Theory analysis and simulation results prove the feasibility and efficiency of the method.