基于小波包变换的DSSS窄带干扰抑制算法研究  

Narrowband Interference Excision for DSSS Communication System Using Wavelet Packet Transform

作　　者：乔晓斌[1] 张友爱[1] 缪学宁[1] 

机构地区：[1]武汉船舶通信研究所,武汉430079

出　　处：《舰船电子工程》2007年第3期80-82,218,共4页Ship Electronic Engineering

摘　　要：提出一种直接序列扩频系统(DSSS)中基于频移非抽取性小波包变换(SUWPT)的窄带干扰抑制算法,该算法在非抽取性小波包变换的基础上,利用频移将干扰更好的集中在某一子频段,并参考能量聚集度原则,对DSSS中的窄带干扰进行定位和抑制。对算法性能进行分析,并通过计算机仿真对算法进行了验证,仿真结果表明,该算法的窄带干扰抑制能力满足设计要求。An shifted undecimated wavelet packet transform(SUWPT) excision algorithm is proposed for narrowband interference in DSSS communication system,which focuses the interference on one sub-band by frequency shifted,finds and removes it by energy compaction measure(EMC).The result of computer simulation shows that the SUWPT algorithm have a satisfying ability on DSSS narrowband interference excision,which we analyse in the article.

关 键 词：直接序列扩频 非抽取性小波包变换 能量聚集度 干扰抑制 

分 类 号：TN914[电子电信—通信与信息系统]