Study on Wavelet Filtering for Signal of Ring Laser Gyro

ZHANG Chuan-bin; DENG Zheng-long

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Study on Wavelet Filtering for Signal of Ring Laser Gyro

更新时间：2025-07-16

- Study on Wavelet Filtering for Signal of Ring Laser Gyro
- Acta Electronica Sinica Vol. 32, Issue 1, Pages: 125-127(2004)
- 作者机构：
  
  哈尔滨工业大学控制科学与工程系,黑龙江,哈尔滨,150001
- 作者简介：
- 基金信息：
- DOI：
  CLC： TP273
- Published：2004
- 稿件说明：
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ZHANG Chuan-bin, DENG Zheng-long. Study on Wavelet Filtering for Signal of Ring Laser Gyro[J]. Acta Electronica Sinica, 2004, 32(1): 125-127.
DOI：

ZHANG Chuan-bin, DENG Zheng-long. Study on Wavelet Filtering for Signal of Ring Laser Gyro[J]. Acta Electronica Sinica, 2004, 32(1): 125-127. DOI：

摘要

随机噪声是影响激光陀螺精度的一个重要因素

其中随机噪声包括分形噪声和白噪声

采用传统的方法很难去除分形噪声.对于激光陀螺中的随机噪声

利用分形噪声在小波变换域的特殊性质采用小波变换域参数估计方法获得噪声参数;然后采用小波阈值滤波方法去除噪声.对某型号的激光陀螺的滤波结果表明了该方法的有效性.

Abstract

Stochastic noises in ring laser gyro

which contain fractal noises and white noises

have poor effects on its' precision.And it is difficult to eliminate fractal noises using traditional method.In order to filter stochastic noises in ring laser gyro

two steps are adopted.First

utilizing special properties of fractal noises in wavelet transform domain

parameter estimation technology in wavelet transform domain is applied to obtain parameters of noises.Second

wavelet soft-threshold denoising method is employed to eliminate noises.Filtering results of a certain type of ring laser gyro show that parameter estimation and filtering based on wavelet analysis are efficient.

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