Research on gPhone Gravimeter Drift Correction Method
In this paper,after preprocessing and various corrections of the Zigui station gPhone gra-vimeter data for the whole year of 2017,we use four methods to carry out a comparative study of drift correction including polynomial correction order selection,drift removal effect evaluation of each method,whether the BEADS algorithm is effective and other issues.The research results show that when the polynomial fitting method is used to remove the drift problem of gPhone gravimeter data,it will become stable when the order reaches about fourth and fifth orders.For general research,it is recommended to use fifth-order polynomials to remove drift,which can meet data processing require-ments.When filtering to remove drift,we need to pay attention to the marginal effect.The EEMD method is highly operable and has more advantages than wavelet filtering.The BEADS algorithm can realize the function of fitting trend terms to remove drift,but can it be used in various studies?This requires further research.The research results of this article can provide an effective reference for drift correction of related spring-type gravimeters.
万方数据
维普
