摘要
软件无线电概念的引入使多模式信号的高速解调成为可能。当前数字信号处理器(DSP)的速度还无法满足大量数据的实时处理。描述了一种较好的软件化解调方案,给出了相应的算法,在相同的技术指标下,大大降低了所需计算量。针对该算法进一步给出了系统硬件实现框图。
The concept of software radio makes it possible to demodulate multimode signal in high speed. However the speed of present digital signal processors cannot cater for the real-time processing. This paper presents a better software demodulation method and its algorithm in details. The calculation that the system needs is reduced according to this algorithm. Furthermore devices are selected, the block of hardware is provided.
出处
《通信技术》
2002年第5X期26-27,30,共3页
Communications Technology
关键词
软件无线电
解调
带通采样
多相滤波
DSP
software radio, modulation, bandpass sampling, polyphase filter, DSP
