无线电通信信道化系统数字实现和计算量分析

Digital realization & calculation loads analysis of efficient communicationssystem on software defined radioplatform

为了解决软件无线电平台中的数字上下变频技术 ,包括频谱的搬移和抽样率的转换 ,克服现有的专用器件在实现这些功能中的不足 .定量分析了高效宽频带变频系统的计算量 ,并给出了具体实现方法和部分仿真程序 ,提出了内插上变频和抽取下变频的实际实现方法 。

To realize better digital down/up converting(including frequency spectrum removing and decimating), overcome the shortages of the present chips,this paper has analyzed the calculation loads of the FIR in the efficient system, and gave the accurate realizing method of the DDC/DUC system, especially including the inserting and decimating method and the realizing of the FIR.