提出了一种脉冲多普勒雷达数字信号处理机机内测试方法．该方法介于系统级和板级之间，集系统调试、在线测试和离线测试于一体，设计简单，易于实现．论证了处理机各个关键模块的具体测试方法．针对其中“数据存储重排”模块，计算了故障覆盖率．此法已成功地应用于某型ＰＤ雷达． A pulse Doppler radar digital signal processor in-machine test method is proposed. The method lies between the system level and the board level, which integrates system debugging, online testing and offline testing in one. The design is simple and easy to implement. Demonstration of the processor of the various key modules of the specific test method. For the “data storage rearrangement” module, the fault coverage is calculated. This method has been successfully applied to a certain type of PD radar.