基于无损小波包最优频移的DSSS系统多音干扰抑制

2016 8th IEEE International Conference on Communication Software and Networks (ICCSN) Pub Date : 2016-06-04 DOI:10.1109/ICCSN.2016.7586673

Lan Wang, Yuhong Yang, Pengxu Li, Liangshan Li

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引用次数: 0

摘要

提出了一种新的直接序列扩频(DSSS)系统窄带干扰抑制算法。该算法结合最优频移和未消差小波包变换(UWPT)，将干扰能量定位在尽可能小的子频带内。此外，采用自适应算法消除干扰子带对信号的危害。仿真结果表明，该算法在抑制多音干扰(MTI)方面具有比传统的未消差移频小波包变换(SUWPT)算法更好的性能。

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Multi-tone interference suppression in DSSS system based on the optimal frequency shift of undecimated wavelet packets

A new algorithm for narrowband interference suppression in Direct Sequence Spread Spectrum (DSSS) system is presented. The algorithm combines the optimum frequency shift and the Undecimated Wavelet Packet Transform (UWPT) to locate the interference energy in as little sub-band as possible. In addition, the adaptive algorithm is used to reduce the harm to the signal caused by eliminating the disturbed sub-band. Simulation results show that the proposed algorithm has a better performance than the traditional Undecimated Wavelet Packet Transform with frequency shift (SUWPT) algorithm in the suppression of the Multi-Tone Interference (MTI).

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2016 8th IEEE International Conference on Communication Software and Networks (ICCSN)

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