一种有效的直扩系统抗干扰算法研究  

An Effective Algorithm of Chirp-like Interference Suppression Based on Matched Signal Transforms(MST) in DSSS System

作　　者：张超 

机构地区：[1]广州海格通信集团股份有限公司,广东广州510663

出　　处：《通信技术》2010年第7期38-40,共3页Communications Technology

摘　　要：针对直接序列扩频系统(DSSS)中可能出现的chirp-like干扰,提出了一种有效的基于匹配信号变换(MST)的干扰抑制算法——干扰重构算法。该算法应用已有的MST快速实现方案设计而成。仿真结果表明,该算法能够有效抑制DSSS系统中线性、非线性chirp-like干扰。与其他一些抗干扰算法的仿真比较表明,该算法具有误码性能好、稳健性强、计算量小、实现更为简单等优点,具有良好的应用前景。For the possible chirp-like interference in DSSS System,an effective algorithm of interference suppression based on matched signal transforms（MST） is proposed,that is,the interference reconstruction algorithm.This algorithm is developed in accordance with the fast scheme of MST.The simulation results indicate that this algorithm could effectively suppress linear or non-linear chirp-like interference in DSSS system.As compared with some other anti-jamming algorithms,the proposed algorithm is superior in bit-error rate,robustness,calculation complexity and implementation,thus is of good application prospect.

关 键 词：chirp-like干扰 干扰重构算法 MST域干扰抑制 特征函数 调频斜率 

分 类 号：TN911.4[电子电信—通信与信息系统]