| Wavelet analysis is a kind of modern data method,because of its two time-frequency domain has excellent localization characteristic and multi-resolution analysis ability,so can any details of the focus signal and its analysis,subtle changes in the signal extraction,known as "mathematical microscope".The collapse of a serious impact on people's life and property safety of the ground caused by coal mining,the establishment of GPS automatic real-time monitoring system in mine surface can obtain the deformation information in real time,to provide protection for the safe production in mine.The deformation data processing sequence is applied to the automatic monitoring system of GPS obtained by wavelet analysis,is of great theoretical significance and practical significance.This paper discusses the basic theory and method of data processing of wavelet transform,multi-resolution analysis of wavelet transform for automatic monitoring of deformation sequence of multi-scale decomposition and reconstruction,extracting the deformation trend and cycle,for the analysis of surface movement provides valuable information on the deformation law.At the same time,wavelet the coefficient of threshold processing,filtering noise existed in the deformation sequence,so as to obtain the actual shape variables,making more accurate analysis of surface movement and deformation.Finally,using the wavelet packet analysis of deformation data sequence singularity analysis,singularity detection of deformation sequence exists and the singular time.Based on the wavelet the analysis is applied to the analysis of mine GPS automatic monitoring data sequence,obtained good results,enriches the subsidence deformation monitoring data processing method. |
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