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文章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。
This article introduces a multi-standard radio test system based on software radio technology. The system uses direct RF sampling to realize real-time digital down-conversion and up-conversion in hardware and software to realize multi-standard modulation and demodulation structure on zero-IF signal, which can be applied to automatic measurement of performance parameters of multi-mode radio.