On-line Realization of Multi-scale Soft-threshold De-noising of MEMS Gyro by Wavelet

摘要：

The on-line realization of the algorithms and the applications of the wavelet transformation and wavelet analysis theory in filtering and de-noising of MEMS gyro are presented in this paper. The process of wavelet filtering is as following: The real-time gyro signals are decomposed into different scales by low-pass and high-pass filter to discard wavelet coefficients;Then the signal is filtered and denoised on different scales by multi-rescaled soft threshold and reconstructed by the basic wavelets and the filter. Examples with actual experiment demonstrate that the method has apparent superiority for filtering gyro random noise. The results of the simulation indicate valid and practical on filtering and de-noising of MEMS gyro. This method can also be used to process the output signal of other kinds of gyroscope.

关键词： wavelets de-noising real-time on-line.

作者: Fengbo Li Qing Peipei Yang Guodong Fu

作者单位: Institute of Automation,Beijing Information Science & Technology University Beijing,China

会议类型: 国际会议

会议名称: 2009 9th International Conference on Electronic Measurement & Instruments(第九届电子测量与仪器国际会议 ICEMI2009)

会议地点: 北京

会议语种:英文

页码: 1519-1522

在线出版日期: 2009-08-16（万方平台首次上网日期，不代表论文的发表时间）