New denoising method for pulsar signal

被引：0
|
作者：
Sun J.-R. [1 ]
Xu L.-P. [1 ]
Wang T. [1 ]
机构：
[1] School of Electronic Engineering, Xidian Univ.
来源：
Xi'an Dianzi Keji Daxue Xuebao/Journal of Xidian University | 2010年 / 37卷 / 06期
关键词：
α-trimmed filter; Bispectrum reconstruction; Pulsar; Signal processing;
D O I：
10.3969/j.issn.1001-2400.1010.06.014
中图分类号：
学科分类号：
摘要：
In order to improve the signal-to-noise ratio(SNR) of the pulsar signal, this paper proposes a denoising algorithm based on bispectrum reconstruction for the pulsar signal. First, the noisy pulsar signal is transformed into the bispectral domain. The bispectrum phase and amplitude are filtered by the α-trimmed filter. Then, the power spectrum and phase of the pulsar signal can be recovered from the filtered bispectrum. Results indicate that this method can eliminate noise in the pulsar signals, and improve the SNR notably.
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收藏
页码：1059 / 1064
页数：5
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