本文简要介绍了时频转换的理论基础和在网络分析仪上实现的方法 ,并对不同的测试模式和激励方式进行了比较和分析。同时 ,通过一个典型电路的测试实例 ,进一步说明了利用网络分析仪进行时域响应测试的意义。 This article briefly introduces the theoretical basis of time-frequency conversion and the method implemented on the network analyzer, and compares and analyzes the different test modes and incentives. At the same time, through a typical circuit test example, further illustrates the use of network analyzer for the meaning of time-domain response testing.