摘要
针对短波窄带信号的实时处理需求,设计实现了一种基于软件无线电思想的短波多路并行处理系统。该系统采用四片高性价比DSP处理器,并行实时处理四路短波信号;采用一片高性能的FPGA,实现全局控制和协处理工作,具有完全可重复编程和配置功能。在此基础上,开发了FPGA程序和主机应用程序,实现了基于DSP的短波PSK信号解调算法。通过在软件无线电接收系统中的实际应用,证实系统使用灵活、性能优良。
This paper centers the design and implementation of short-wave multi-channel parallel processing system based on software defined Radio, for the demand of the short-wave narrow band signal real-time processing. The board applies four DSP chips which has the high performance-cost ratio to process four channel parallel signals realtimely and a high-powered FPGA to controll and co-process the system,and the system can be programmed and configured repeatly.Then, the paper develops the pro- grams of FPGA and host, and implements a demodulation algorithm based on DSP. In the end, a practical application example of the system in software defined radio receiveing system is provided, and practice proves that the system has good performance and flexibility.
出处
《电子技术应用》
北大核心
2009年第2期57-60,63,共5页
Application of Electronic Technique
基金
国防预研资助项目(6130320)
