高速运动目标宽带雷达回波频域模拟及分析

摘要

该文提出了一种高速运动目标宽带雷达回波频域模拟方法。根据雷达波与运动目标相互作用的物理过程建立了运动目标宽带雷达回波的频谱模型，提出了一种雷达回波的频域建模流程，分析了目标径向距离和径向速度对LFM 信号匹配滤波结果的影响，推导了高分辨率距离像(HRRP)平移和扩展的定量结论。仿真结果验证了该方法的正确性和有效性。%A frequency-domain method is proposed for wideband radar echo simulation of high-speed moving targets. Based on the physical process of electromagnetic waves observing a moving target, a frequency-domain echo model of wideband radar is constructed, and the block diagram of the radar echo simulation in frequency-domain is presented. Then, the impacts of radial velocity and slant range on the matching filtering of LFM radar are analyzed, and some quantitative conclusions on the shift and expansion of the radar profiles are obtained. Simulation results illustrate the correctness and efficiency of the proposed method.