为实现反辐射导弹抗雷达诱饵诱偏,根据诱饵诱偏反辐射导弹的原理,提出采用均匀圆形阵列天线结构对雷达及诱饵进行定位,并使用MUSIC算法估计其到达角。分析了均匀圆形阵列角度模糊问题,得到了其不模糊条件。给出了均匀圆形阵列结构下的二维MUSIC算法,该算法能对非相干的多辐射源到达角进行估计。最后对五元阵结构下的两点源进行了仿真计算,仿真结果证明了采用该方法能有效抗雷达诱饵诱偏。

To antagonize radar bait decoy, the uniform circular array antenna was used in the anti-radiation missile (ARM) to locate the radar and baits according the principles of anti-radiation missiles cajolery, and the MUSIC algorithm was adopted to estimate the direction-of-arrival (DOA). The angle ambiguity of uniform circular array was analyzed, and the non-ambiguity condition was obtained. Then the 2D-MUSIC algorithm of uniform circular array was presented, which can estimate the DOA of multiple non-coherent emitters. Finally, two emitters location with five sensors were simulated. The simulation results demonstrate that using this method, ARM can antagonize bait decoy effectively.