介绍了雷达杂波信号的建模与仿真原理，给出了一个基于直接数字频率合成的雷达杂波信号模拟系统的设计实例，该系统采用丁软硬件相结合形式，能灵活生成包括地杂波、海杂波、云雨杂波、箔条杂波在内的多种信号波形的雷达杂波回波信号。

Methods for developing mathematic model and performing numerical simulation of radar clutter are discussed. A system of radar clutter simulator based on DDS is presented. This simulator was implemented by combined means of software and hardware, and can theyibly generate many kinds of radar clutter with different waveforms, including ground clutter, sea clutter, cloud-rain clutter and chaff clutter.

TN955 TN958