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