| 基于小波包变换的DSSS窄带干扰抑制算法研究 |
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| 引用本文： | 乔晓斌,张友爱,缪学宁.基于小波包变换的DSSS窄带干扰抑制算法研究[J].舰船电子工程,2007,27(3):80-82,218. |
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| 作者姓名： | 乔晓斌 张友爱 缪学宁 |
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| 作者单位： | 武汉船舶通信研究所,武汉,430079 |
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| 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。
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| 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 |
| 修稿时间： | 2006-11-102006-11-30 |
Narrowband Interference Excision for DSSS Communication System Using Wavelet Packet Transform |
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| Qiao Xiaobin.Narrowband Interference Excision for DSSS Communication System Using Wavelet Packet Transform[J].Ship Electronic Engineering,2007,27(3):80-82,218. |
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| Authors: | Qiao Xiaobin |
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| Institution: | Qiao Xiaobin |
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| Abstract: | 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. |
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| Keywords: | DSSS UWPT energy compaction measure interference excision |
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