改进小波阈值函数的HRG振动信号去噪研究

doi:10.3969/j.issn.1009-086x.2018.01.029

现代防御技术 ›› 2018, Vol. 46 ›› Issue (1): 184-189.DOI: 10.3969/j.issn.1009-086x.2018.01.029

改进小波阈值函数的HRG振动信号去噪研究

谭纪文, 汪立新, 周小刚, 李卓

火箭军工程大学控制科学与工程系,陕西西安 710025

收稿日期:2017-06-27 修回日期:2017-07-25 出版日期:2018-02-28 发布日期:2020-11-25
作者简介:谭纪文(1992-),男,山东聊城人。硕士生,主要从事惯性信号处理研究。通信地址:262500 山东省青州市范公亭南街12号 E-mail:1067945980@qq.com
基金资助:
国家自然科学基金资助项目(61503390)

De-Noising of HRG Vibration Signal Based on Improved Wavelet Threshold Function

TAN Ji-wen, WANG Li-xin, ZHOU Xiao-gang, LI Zhuo

Rocket Force University of Engineering,Department of Control Science and Engineering,Shaanxi Xi'an 710025,China

Received:2017-06-27 Revised:2017-07-25 Online:2018-02-28 Published:2020-11-25

摘要/Abstract

摘要： 为了有效解决振动对半球谐振陀螺仪(HRG)导航精度的影响,采用小波阈值去噪算法对HRG振动信号进行了去噪研究,并针对经典的硬阈值函数和软阈值函数的不足进行了改进,改进得到了一种参数可调的阈值函数,弥补了硬阈值函数和软阈值函数在去噪中的不足。通过仿真数据以及HRG实测振动数据验证,证明了改进阈值函数的有效性和优越性。

关键词: 惯性导航, 半球谐振陀螺仪, 小波, 硬阈值函数, 软阈值函数, 去噪

Abstract: To solve the influence of vibration on the hemispherical resonator gyro (HRG) navigation accuracy, the wavelet threshold de-noising algorithm is used to study HRG vibration signal. Aiming at the shortcomings of classical hard threshold function and soft threshold function, a threshold function with adjustable parameters is obtained, which makes up the deficiency of hard threshold function and soft threshold function in de-noising. The validity and superiority of the threshold function are proved by the simulation data and the verification of the measured vibration data of HRG.

Key words: inertial navigation, hemispherical resonator gyro (HRG), wavelet, hard threshold function, soft threshold function, denoising

中图分类号:

谭纪文, 汪立新, 周小刚, 李卓. 改进小波阈值函数的HRG振动信号去噪研究[J]. 现代防御技术, 2018, 46(1): 184-189.

TAN Ji-wen, WANG Li-xin, ZHOU Xiao-gang, LI Zhuo. De-Noising of HRG Vibration Signal Based on Improved Wavelet Threshold Function[J]. Modern Defense Technology, 2018, 46(1): 184-189.

参考文献

[1] 王巍.新型惯性技术发展及在宇航领域的应用[J].红外与激光工程,2016,45(3):1-6.
WANG Wei.Development of New Inertial Technology and Its Application in Aerospace Field[J].Infrared and Laser Engineering,2016,45(3):1-6.
[2] 冯培德.论混合式惯性导航系统[J].中国惯性技术学报,2016,24(3):281-284.
FENG Pei-de.On Hybrid Inertial Navigation Systems[J].Journal of Chinese Inertial Technology,2016,24(3):281-284.
[3] 段振雨.MEMS捷联式惯性导航系统振动控制[D].北京:中国科学院大学,2016.
DUAN Zhen-yu.Vibration Control of MEMS Strapdown Inertial Navigation System[D].Beijing:University of Chinese Academy of Sciences,2016.
[4] 李晓波,吴斌,董程,等.捷联惯导减振系统的耦合振动研究[J].装备环境工程,2014,11(2):43-49.
LI Xiao-bo,WU Bin,DONG Cheng,et al.Research on Coupled Vibration of Strapdown INS Damping System[J].Equipment Environmental Engineering,2014,11(2):43-49.
[5] 王平,张广鹏,尉飞,等.轻量化惯导系统振动响应分析与减振器优化[J].仪器仪表学报,2016,37(8):1898-1905.
WANG Ping,ZHANG Guang-peng,WEI Fei,et al.Vibration Response Analysis of Lightweight INS and Optimization of Vibration Absorber[J].Chinese Journal of Scientific Instrument,2016,37(8):1898-1905.
[6] 张天祥,黄小欣.基于Matlab实现小波阈值去噪的图像处理方法[J].现代电子技术,2013,36(5):103-105.
ZHANG Tian-xiang,HUANG Xiao-xin.Realization of Wavelet Threshold Denoising Method Based on Matlab for Image Processing[J].Modern Electronics Technique,2013,36(5):103-105.
[7] 王宏强,尚春阳,高瑞鹏,等.基于小波系数变换的小波阈值去噪算法改进[J].振动与冲击,2011,30(10):165-168.
WANG Hong-qiang,SHANG Chun-yang,GAO Rui-peng,et al.An Improvement of Wavelet Shrinkage Denoising via Wavelet Coefficient Transformation[J].Journal of Vibration and Shock,2011,30(10):165-168.
[8] 刘晓光,胡静涛,高雷,等.基于改进小波阈值的微机械陀螺去噪方法[J].中国惯性技术学报,2014,22(2):233-236.
LIU Xiao-guang,HU Jing-tao,GAO Lei,et al.Micro Mechanical Gyro Denoising Method Based on Improved Wavelet Threshold[J].Journal of Chinese Inertial Technology,2014,22(2):233-236.
[9] 金宝龙,李辉,赵乃杰,等.一种新的小波阈值去噪算法[J].弹箭与制导学报,2011,31(1):167-169.
JIN Bao-long,LI Hui,ZHAO Nai-jie.A De-Nosing Algorithm of Wavelet Threshold Based on a New Threshold Function[J].Journal of Projectiles,Rocket,Missiles and Guidance,2011,31(1):167-169.
[10] LU Jing-yi,LIN Hong,YE Dong,et al.A New Wavelet Threshold Function and Denoising Application[J].Mathematical Problems in Engineering,2016,2016(3):1-8.
[11] SADOOGHI M S,KHADEM S E.A New Performance Evaluation Scheme for Jet Engine Vibration Signal Denoising[J].Mechanical Systems & Signal Processing,2016,76-77:201-212.
[12] SRIVASTAVA M,ANDERSON C L,FREED J H.A New Wavelet Denoising Method for Selecting Decomposition Levels and Noise Thresholds[J].IEEE Access Practical Innovations Open Solutions,2016(4):3862.
[13] BREIMAN L.Better Subset Regression Using the Nonnegative Garrote[M].American Society for Quality Control and American Statistical Association,1995.
[14] 沙磊,任超.改进的Garrote阈值法去噪的研究[J].工程勘察,2010,38(7):57-60.
SHA Lei,REN Chao.Research on Improved Garrote Threshold De-Noising Method[J].Geotechnical Investigation&Surveying,2010,38(7):57-60.
[15] 张婷婷,杨洁明.基于改进小波域阈值法的平移不变振动信号去噪[J].机电工程,2009,26(6):65-67.
ZHANG Ting-ting,YANG Jie-ming.Translation- Invariant Denoising of Signal Based on Improved Wavelet Domain Threshold Method[J].Mechanical & Electrical Engineering Magazine,2009,26(6):65-67.
[16] 姬忠校.光纤陀螺性能改善技术研究[D].西安:中国科学院,2011.
JI Zhong-xiao.Studies on the Technique of the Fiber-Optic Gyroscope for Improving Performance[D].Xi'an:Chinese Academy of Sciences,2011.
[17] 朱占辉,张友妮,汪立新,等.基于Allan方差改进阈值的惯性传感器动态信号小波去噪[J].传感技术学报,2016,29(11):1718-1723.
ZHU Zhan-hui,ZHANG You-ni,WANG Li-xin,et el.Wavelet De-Noising of Inertial Sensor Dynamic Signal Based on Improvement Threshold with Allan Variance[J].Chinese Journal of Sensors and Actuators,2016,29(11):1718-1723.

改进小波阈值函数的HRG振动信号去噪研究

De-Noising of HRG Vibration Signal Based on Improved Wavelet Threshold Function

可视化

摘要/Abstract

引用本文

使用本文

参考文献

相关文章 3

编辑推荐

Metrics

本文评价

[1]	覃坚, 费太勇, 曲智国, 张逸楠. 基于优化小波阈值的轴承振动信号降噪算法[J]. 现代防御技术, 2023, 51(2): 141-147.
[2]	赵黎兴, 侯兴明, 徐兆文, 和林子. 基于GA-小波-BP神经网络的装备维修能力评估[J]. 现代防御技术, 2022, 50(2): 84-95.
[3]	任渊, 程远, 刘溶. 双树复数小波变换在杂波抑制处理中的应用[J]. 现代防御技术, 2018, 46(3): 93-97.