基于平稳小波变换的陀螺仪信号去噪方法  

Gyro Signal Denoising Using Stationary Wavelet Transform

作　　者：李士心[1] 刘鲁源[1] 杨晔[2] 陈刚[2] 

机构地区：[1]天津大学电气与自动化工程学院,天津300072 [2]天津航海仪器研究所,天津300131

出　　处：《天津大学学报（自然科学与工程技术版）》2003年第2期165-168,共4页Journal of Tianjin University：Science and Technology

基　　金：天津市自然科学基金资助项目(023601611).

摘　　要：针对传统小波去噪效果的局限性,分析了平稳小波与经典小波之间的关系,首次将平稳小波用于陀螺仪信号去噪,并与经典小波的去噪结果进行比较;实验结果表明,陀螺仪信号经平稳小波去噪后的寻北精度明显优于经典小波,进一步验证了平稳小波变换具有较好的去噪效果.Aiming at the limitation of traditional wavelet denoise effect, the relationship between stationary and classic wavelet is studied in detail.For the first time, the stationary wavelet is used to denoise the Gyro signal and compare with the result of classic wavelet.The experiment results show that the north finding accuracy by using stationary wavelet is obviously better than that by using classic wavelet.It also proves the better denoising performance of stationary wavelet.

关 键 词：小波变换 平稳小波变换 陀螺漂移 

分 类 号：TB535[理学—物理]