宽城台定点形变气压干扰小波分析及干扰排除  

Wavelet Transform and Interference Elimination of Fixed-Point Deformation Pressure Interference of Kuancheng Station

作　　者：王嘉琦 孙澎涛[1] 任俊峰[1] 袁国旭[1] WANG Jiaqi;SUN Pengtao;REN Junfeng;YUAN Guoxu(Chengde Seismic Station of Hebei Earthquake Agency,Shuxiangsi Village,Chengde 067000,China)

机构地区：[1]河北省地震局承德中心台,河北省承德市067000

出　　处：《大地测量与地球动力学》2020年第8期860-864,共5页Journal of Geodesy and Geodynamics

摘　　要：通过小波分解对宽城台定点形变仪器受气压干扰的典型事件进行分析,得出气压干扰在不同频段对不同仪器的干扰特征,并通过小波阈值去噪对各测项受气压干扰的观测数据进行干扰排除,取得较好的效果。Through wavelet decomposition,the typical events of the fixed-point deformation instruments of Kuancheng station are analyzed by atmospheric pressure interference.We obtain the characteristics of atmospheric pressure interference on different instruments in different frequency bands.We eliminate interference and achieve better results.

关 键 词：小波分析 气压干扰 阈值 去噪 

分 类 号：P315[天文地球—地震学]