Title :
Adaptive morphological wavelet filter used in gravimeter signal processing
Author :
Zhao Liye ; Li Hongsheng
Author_Institution :
Key Lab. of Micro-Inertial Instrum. & Adv. Navig. Technol., Southeast Univ., Nanjing, China
Abstract :
In order to suppress the strong noise, an adaptive morphological wavelet filter algorithm based on the morphological wavelet algorithm is applied in the high precise gravimeter signal processing. The preliminary work of the algorithm is to remove impulse signals of gravimeter signals with morphology filter. Then an adaptive thresh of wavelet transform filter it again. Finally, the reconstructed gravimeter signals without noise is obtained. Results of emulations show that the de-noising performance of the adaptive morphological wavelet filter algorithm are better than those of the classical wavelet filter algorithm.
Keywords :
adaptive filters; geophysical signal processing; gravimeters; signal reconstruction; wavelet transforms; adaptive morphological wavelet filter; denoising performance; gravimeter signal processing; morphological wavelet algorithm; noise suppression; signal reconstruction; wavelet transform filter; Adaptive filters; Filtering algorithms; Gravity; Gravity measurement; Noise; Noise reduction; Wavelet transforms; adaptive filter; gravimeter signal; morphological filter; signal processing; wavelet transform filter;
Conference_Titel :
Mechatronic Science, Electric Engineering and Computer (MEC), 2011 International Conference on
Conference_Location :
Jilin
Print_ISBN :
978-1-61284-719-1
DOI :
10.1109/MEC.2011.6026008