一种适于软件无线电系统的频谱倒置实现方法  

A Novel Method of Inverting Signal Spectrum for Software Radio System

作　　者：张玉良[1] 吴伟陵[1] 田宝玉[1] 

机构地区：[1]北京邮电大学信息工程学院,北京100876

出　　处：《北京邮电大学学报》2003年第1期64-68,共5页Journal of Beijing University of Posts and Telecommunications

摘　　要：分析了频谱倒置对不同信号调制方式的影响;给出了实现无线电频谱倒置的算法;以多速率数字信号处理理论为基础给出了具有低计算复杂度的实现方案.While the direct bandpass sampling method for multiple discontinuous narrowband radio signals can ease up the A/D bottleneck in a software radio system, the spectrum of some of signal may be inverted. The impact of the inverse placement of spectrum for signals with different modulation modes is analyzed, then the method to invert radio signal spectrum is given. An implementation method with low computation complexity(number of computation needed per unit time) is given based on multirate digital signal processing theory.

关 键 词：软件无线电 多速率数字信号处理 带通采样 频谱倒置 

分 类 号：TN929.5[电子电信—通信与信息系统]