利用DSP模拟雷达杂波信号进行雷达性能测试和抗干扰性能测试,是雷达电子对抗训练的重要手段。文中从雷达杂波的分布特性出发,分析了低分辨率雷达地物杂波的幅度概率密度统计特性和功率谱特性。并根据分布特性建立了低分辨率雷达杂波模拟算法模型,以ADSP-BF533为核心,进行相应的软件设计,实现了一种雷达杂波实时模拟系统,能够满足一般动目标检测、动目标显示体制雷达的性能测试和抗干扰训练。

Simulation of the radar clutter signal by using DSP for radar performance testing and robustness testing is an important means of radar electronic warfare training. The distribution characteristic of the radar clutter is used in the paper. It analyzes the probability density and the power spectral density of the low resolution radar. The simulative model is established and a method of frequency transformation for simulating the clutter echo is introduced and by using ADSP-BF533, a complete system is designed for clutter echo simulation by using the method introduced successfully. The simulation can fulfill the need to test or anti-interference training the type of MTI and MTD radar.