| 一种能有效抑制窄带干扰的小波包多载波扩频系统 |
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| 引用本文： | 应小凡,田红心,易克初.一种能有效抑制窄带干扰的小波包多载波扩频系统[J].电路与系统学报,2006,11(1):16-19. |
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| 作者姓名： | 应小凡 田红心 易克初 |
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| 作者单位： | 西安电子科技大学,ISN国家重点实验室,陕西,西安,710071 |
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| 摘 要： | 本文提出一种能有效抑制窄带干扰的基于小波包的多载波扩频接收系统.该系统通过小波包分析来自适应调整优化参数并进行抗干扰处理,使系统性能在高功率窄带干扰下得到改善.处理过程可与传统的基于小波包的多载波扩频系统解调解扩方式很好的相匹配,系统复杂度很低.研究与仿真结果表明,这种方案简单实用,具有良好的性能.在相同的处理条件下,性能要大大优于基于离散傅立叶变换(DFT)的多载波扩频系统.
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| 关 键 词： | 小波包 多载波扩频 抗干扰 |
| 文章编号： | 1007-0249（2006）01-0016-04 |
| 收稿时间： | 2003-10-09 |
| 修稿时间： | 2003-12-16 |
One wavelet packet-based multi-carrier spread spectrum system that can restrain narrow band jamming efficiently |
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| YING Xiao-fan,TIAN Hong-xin,YI Ke-chu.One wavelet packet-based multi-carrier spread spectrum system that can restrain narrow band jamming efficiently[J].Journal of Circuits and Systems,2006,11(1):16-19. |
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| Authors: | YING Xiao-fan TIAN Hong-xin YI Ke-chu |
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| Abstract: | In this paper,a new scheme of wavelet packet-based multi-carrier spread spectrum receiver is proposed,narrow band jamming can be restrained in the system,which performance is efficiently improved by means of adaptively choosing optimizing parameters based on wavelet packet analysis.Its complexity is very low since the process can be cooperated with the despreading/demodulation of common wavelet packet-based spread spectrum scheme.The results of computer simulation show that the new scheme is simple and practical,moreover,its performance is much better than the Discrete Fourier Transform(DFT) based multi-carrier spread spectrum scheme for the same working condition. |
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| Keywords: | wavelet packet multi-carrier spread spectrum anti jamming |
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