留言板

尊敬的读者、作者、审稿人, 关于本刊的投稿、审稿、编辑和出版的任何问题, 您可以本页添加留言。我们将尽快给您答复。谢谢您的支持!

姓名
邮箱
手机号码
标题
留言内容
验证码

光纤陀螺分形噪声的预白化滤波方法

华春红 任章 张敏虎

华春红, 任章, 张敏虎等 . 光纤陀螺分形噪声的预白化滤波方法[J]. 北京航空航天大学学报, 2011, 37(2): 216-219.
引用本文: 华春红, 任章, 张敏虎等 . 光纤陀螺分形噪声的预白化滤波方法[J]. 北京航空航天大学学报, 2011, 37(2): 216-219.
Hua Chunhong, Ren Zhang, Zhang Minhuet al. Pre-whitening filter of fractal noise in fiber optic gyroscope[J]. Journal of Beijing University of Aeronautics and Astronautics, 2011, 37(2): 216-219. (in Chinese)
Citation: Hua Chunhong, Ren Zhang, Zhang Minhuet al. Pre-whitening filter of fractal noise in fiber optic gyroscope[J]. Journal of Beijing University of Aeronautics and Astronautics, 2011, 37(2): 216-219. (in Chinese)

光纤陀螺分形噪声的预白化滤波方法

基金项目: 航空科学基金资助项目(20070851011)
详细信息
    作者简介:

    华春红(1976-),女,江西崇仁人,博士生,huachh@asee.buaa.edu.cn.

  • 中图分类号: V 241.5

Pre-whitening filter of fractal noise in fiber optic gyroscope

  • 摘要: 光纤陀螺分形噪声往往具有长相关特性,导致陀螺输出信号慢漂移.为了滤除这类分形噪声,提出了一种分数阶预白化差分方法,通过该方法可以将分形噪声转化为高斯白噪声;利用小波变换,在小波变换域中采用Bayes软阈值去噪方法去除该白化噪声,从而形成了一种光纤陀螺分形噪声的预白化滤波方法.对VG949p型光纤陀螺实测数据处理结果表明,该方法能够有效地去除其中的分形噪声,抑制了陀螺低频漂移,同时也滤掉了其高频噪声项.

     

  • [1] Skaloud J,Bruton A M,Schwarz K P.Detection and filtering of short-term (1/fγ) noise in inertial sensors[J].Journal of the Institute of Navigation,1999,46(2):97-107 [2] Han Junliang,Ge Shengmin,Shen Yi,et al.Modeling and simulation of digital closed-loop fiber optic gyroscope //Proceedings of the 6th World Congress on Intelligent Control and Automation.Dalian:IEEE,2006:1659-1663 [3] Torre K,Delignières D,Lemoine L.Detection of long-range dependence and estimation of fractal exponents through ARFIMA modeling[J].British Journal of Mathematical and Statistical Psychology,2007,60:85-106 [4] Gao Yukai,Deng Zhenglong.Extraction of FOG signal from fractal noise //Proceedings of the 2003 International Conference on Neural Networks and Signal Processing.Nanjing:IEEE,2003:768-771 [5] 武华伍,任章.光纤陀螺中分形噪声的参数估计和去除[J].北京航空航天大学学报,2008,34(6):630-633 Wu Huawu,Ren Zhang.Parameter estimation and elimination to fractal noise of fiber optic gyro[J].Journal of Beijing University of Aeronautics and Astronautics,2008,34(6):630-633(in Chinese) [6] 杨福生.小波变换的工程分析与应用[M].北京:科学出版社,2003:217-241 Yang Fusheng.Engineering analysis and application of wavelet transform[M].Beijing:Science Industry Press,2003:217-241(in Chinese) [7] 陈彦辉,谢维信.随机分形信号参数的分数差分估计[J].电子与信息学报,2001,23(1):9-15. Chen Yanhui,Xie Weixin.Fractional difference estimationfor the parameters of random fractal signal[J].Journal of Electronics and Information Technology,2001,23(1):9-15(in Chinese) [8] Deriche M,Tewfik A H.Maximum likelihood estimation of the parameters of discrete fractionally differenced Gaussian noise process[J].IEEE Transactions on Signal Processing,1993,41(10):2977-2989 [9] Rao R,Lee S,Bayraktar E,et al.Signal processing models for discrete-time self-similar and multifractal processes //The thirty-seventh Asilomar Conference on Signals Systems and Computers.California:IEEE,2003,1:8-12 [10] Xie Chi,Yang Ni.Analysis and empirical research on thelong-memory property of exchange rate time series //International conference on wireless communications,networking and mobile computing.Shanghai:IEEE,2007:5911-5914 [11] Jin Xiu,Yao Jin.Empirical study of ARFIMA model based on fractional differencing[J].Physica A,2007,377:138-154 [12] 成礼智,王红霞,罗永.小波的理论与应用[M].北京:科学出版社,2004:269-286 Cheng Lizhi,Wang Hongxia,Luo Yong.The theory and application of wavelet[M].Beijing:Science Press,2004:269-286(in Chinese)
  • 加载中
计量
  • 文章访问数:  3786
  • HTML全文浏览量:  186
  • PDF下载量:  886
  • 被引次数: 0
出版历程
  • 收稿日期:  2009-12-24
  • 网络出版日期:  2011-02-28

目录

    /

    返回文章
    返回
    常见问答