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作 者:林鑫
机构地区:[1]北京理工大学信息与电子学院,北京100089
出 处:《电子技术应用》2017年第12期13-16,共4页Application of Electronic Technique
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.
分 类 号:TN91[电子电信—通信与信息系统]
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