Phase test work is a labor intensive low safety factor and the results very demanding work a wrong phase test will lead to the power grid instability easy to bring some disastrous results through a chain reaction .

核相 工作是一项耗费人力、安全 系数低并且对结果要求非常高的工作， 核相错误会导致电网的不稳定，容易引起连锁反应带来灾难性的结果。

This paper providers the work theory hardware circuit structure and the application on improvement factor test of radar moving-target indicator system .

本文给出了回波模拟的基本原理，模拟器的硬件组成以及在雷达动目标显示系统改善 因子 测试中的应用。