高速小目标近场动态RCS计算  

Near-Field Dynamic RCS Calculation of High-Velocity Weak Targets

作　　者：金桂玉[1] 张京国[1] 高宠[1] 周宗海[1] 

机构地区：[1]中国空空导弹研究院,河南洛阳471009

出　　处：《航空兵器》2013年第6期30-34,共5页Aero Weaponry

摘　　要：为研究高速小目标在弹目交会末端的雷达散射特性,提出一种近场动态RCS计算方法。根据导弹和目标的姿态模拟弹目运动轨迹,当弹道末端探测波束照射到目标时,综合物理光学法和等效电磁流法求得目标近场动态RCS计算结果。根据RCS计算结果对多普勒回波信号进行模拟,所得信号与实测信号相比,幅度和频率均一致,验证了模型的正确性。To investigate the radar scattering characteristics of high-velocity weak targets during mis- sile-target encounter, a method calculating near-field dynamic RCS is proposed. The motion trajectories of missile and target are simulated according to their poses. The RCS are computed based on the methods of physical optics and equivalent currents when targets are scanned by the beam at the end of trajectory. Then the corresponding Doppler echo signal is simulated based on the RCS result, and the amplitude and frequency of the signal arc consistent with the experimental data, which indicates that the proposed meth- od is correct.

关 键 词：高速小目标 近场 动态RCS 多普勒回波 

分 类 号：TN957.51[电子电信—信号与信息处理]