介绍了一种基于软件无线电技术的多制式电台测试系统。该系统采用了直接射频采样，以硬件实现实时数字下变频与上变频，以软件在零中频信号上实现多制式调制解调的结构，从而可应用于对多制式电台的性能参数自动测量。

-Introduced multi-standard radio test system based on software radio technology. The system uses direct RF sampling, implemented in hardware real-time digital-conversion and up-conversion, the software multi-standard modem configuration on a zero-IF signal, which can be used to automatically measure the performance parameters of multi-standard radio.