雷达诱饵合成场对反辐射导弹测向系统的影响

该文在同时考虑方向图、极化方式两方面影响的情况下，确立雷达天线、诱饵天线辐射场的数学模型，从四臂平面等角螺旋天线双通道幅相组合测向系统工作原理入手，给出了雷达和诱饵合成场对反辐射导弹测向系统干扰性能的仿真思路、计算公式和模拟结果。数值计算表明，通过合理设置雷达诱饵布阵距离、诱饵辐射功率与雷达副瓣辐射功率的相对大小及诱饵辐射场与雷达辐射场初始相位的相对关系，可以使反辐射导弹跟踪进入雷达和诱饵之间的陷阱区域。

Effects of the Electromagnetic-Field-Combined Profile of Radar and Decoy on Direction-Finding System of Anti-Radiation Missile

Under the consideration of field pattern and polarization, a mathematic model related to the filed radiated from the antenna of radar and decoy is presented. Based on the mechanism of two-channel direction-finding systems with four-arm spiral antenna, the simulation algorithms and formulae are introduced and the tracking characteristic of Anti-Radiation Missile (ARM) is analyzed when the system is exposed in the electromagnetic-field-combined profile of radar and decoy. Numerical results show that ARM may be decoyed to a trapped area if the power and initial phase of the radiation filed of the decoy relative to the radar are set to some appropriate values.