摘要
由于受各种因素的影响,变形观测数据可能包含各种各样的误差与变形信息,但仅从这些数据表面上,不能反映形变的任何信息,所以,必须通过对监测数据进行综合处理分析,才能有效地提取变形信息,发现变形规律。本文利用小波多尺度分解,结合变形监测实例,从数据去噪方面对小波变换在GPS变形监测数据处理中的应用进行了研究。通过对处理结果做了详细分析,利用小波变换的多分辨率特性,实现了GPS动态监测数据的滤波、变形特征信息的提取以及不同变形频率的分离,有效的求解变形的非线性系统问题,验证了基于小波理论的GPS变形监测数据处理方法的可行性与有效性。
Due to the influence of affected by various factors,deformation observation data may include various kinds of errors and deformation information,but only from these data on the surface,cannot reflect the deformation of any information,So,we must pass comprehensive treatment for monitoring data analysis,we can effectively extract deformation information,found deformation regularity.This paper uses wavelet multiscale decomposition,combining the deformation monitoring examples,and it do research on the use of wavelet transform in the GPS deformation monitoring application data processing from the data denoising aspects.Through the processing results are analysed in detail by using wavelet transform multiresolution characteristics,realize the dynamic monitoring data of GPS deformation characteristics of filter,and different deformation information extraction separation of frequency,effective solution of the nonlinear system problems,deformation based on wavelet theory proved the GPS deformation monitoring data processing method is feasible and effective.
出处
《四川地质学报》
2013年第A01期197-200,共4页
Acta Geologica Sichuan
关键词
数据处理
小波变换
Data processing Wavelet transform
