软件无线电中信号中频与采样频率选择

研究了在软件无线电中如何选择合适的信号中心频率与相应的采样频率,在经典的信号带通采样技术基础上对信号带宽和采样频率的关系加以讨论,确定了选择采样频率及信号中心频率的方案,并得到了最大的保护带宽,最后给出了具体工程算例,其研究结果对设计相应的软件无线电平台具有实际的指导价值。

Choice of Signal IF and Sampling Frequency in Software Radio

This paper studies how to select the appropriate intermediate frequency(IF) of the signal and corresponding sampling frequency in software radio,discusses the relationship between the signal bandwidth and the sampling frequency based on the classical signal band-pass sampling technique,confirms the scheme to select the sampling frequency and the IF of the signal,and fetches the maximal protective bandwidth,finally presents the idiographic engineering example,the study result has practical guidance value for...