Pulsar Signal Outlier Elimination Based on Wavelet Transform

被引:0
|
作者
Guo, Hehe [1 ]
Su, Zhe [1 ]
Feng, Dongzhu [1 ]
机构
[1] Xidian Univ, Xian 710071, Peoples R China
关键词
pulsar signal; outlier elimination; wavelet; adaptive;
D O I
暂无
中图分类号
V [航空、航天];
学科分类号
08 ; 0825 ;
摘要
Pulsar signal is a typical non-stationary signal that has a minimum signal to noise ratio and vast outliers which will direct affect the observation accuracy of pulsar signal time of arrival (TOA), reduce the precision of the filter and make the filter loss of stability. In this paper, outliers are eliminated based on wavelet by set adaptive soft threshold in detailed components. The simulation results demonstrate the accuracy of pulsar signal TOA improves significantly after outliers eliminated by adaptive soft threshold.
引用
收藏
页码:1512 / 1515
页数:4
相关论文
共 8 条
  • [1] Cheng Zhengxing, 2006, WAVELET ANAL APPL
  • [2] Ge Yao, 2006, J SPACECRAFT TT C TE, V25, P64
  • [3] Wavelet-based detection of outliers in financial time series
    Grane, Aurea
    Veiga, Helena
    [J]. COMPUTATIONAL STATISTICS & DATA ANALYSIS, 2010, 54 (11) : 2580 - 2593
  • [4] Li Yun, 2010, 2010 2 C ENV SCI INF
  • [5] Li ZX, 2008, AERO WEAPONRY, P45
  • [6] Liu TianTeng, 2003, ELECT MACHINES CONTR, V7, P40
  • [7] [汪丽 WANG Li], 2008, [天文研究与技术, Astronomical Research & Technology], V5, P49
  • [8] [朱晓明 ZHU Xiaoming], 2006, [天文学报, Acta Astronomica Sinica], V47, P328