基于小波变换模极大值的滑坡监测数据处理方法及其实现

LANDSLIDE DATA PROCESSING METHODS AND ITS APPLICATION BASED ON WAVELET TRANSFORM MODULAR MAXIMUM

首先给出小波变换模极大值法用于滑坡体位移监测曲线去噪的处理方法,并对该方法在MATLAB中的实现进行了研究和探讨,给出了实现的算法步骤以及相应的MATLAB程序代码。利用实际数据资料,在MATLAB下进行滑坡体位移监测曲线去噪试验,取得了较理想的效果。实验结果表明,将小波变换模极大值法用于滑坡体数据处理,不但可以有效地消除噪声,而且还可以保持信号的阶跃或突变点的位置不变。

This paper introduces the processing methods of removing noise for landslide monitor curve,and studies and probes into the realization of the method by MATLAB.The algorithm measure and corresponding MATLAB procedure code realized are given.By denoising to the field landslide's displacement monitoring curves,the ideal result is obtained and show that the method is effective,and can remove noise from signal effectively and keep abrupt change in signal.