摘要
数字匹配滤波器(DMF)是直接序列扩频(DSSS)通信系统的关键部件,采用FPGA设计数字匹配滤波器可以获得更高的系统性能。首先介绍了数字匹配滤波器的原理,然后阐述了多模式DMF的设计原理,在同一个直接序列扩频通信系统的接收端集成多种模式,实现对多种扩频比扩频信号的解扩,提高通信系统的性能。在此基础上,通过MATLAB仿真验证其有效性,最后给出了FPGA实现的过程和结果。
The digital matched filter（ DMF） is the critical component of direct sequence spread spectrum（ DSSS） communication sys-tem. Designing it based on FPGA can gain higher system performance. Firstly, the principle of digital matched filter is introduced,and then the design principle of multi-mode digital matched filter is expounded that integration of a variety of modes on the re-ceiving end of the same direct sequence spread spectrum communication system for despreading of spread spectrum signals with multiple spread-spectrum ratios improves the performance of communication system. On this basis, the effectiveness is verified by MATLAB simulation. Implementation and results based on FPGA are given at last.
出处
《电子技术应用》
北大核心
2017年第12期13-16,共4页
Application of Electronic Technique
