The optimal choice of wavelet bases in gravity data multi-scale analysis

Wavelet multi?scale analysis is a useful method in gravity data processing. Its analytical result is closely related to the se?lection of the optimum wavelet base. In this paper, combined with the characteristics of gravity data, the authors first analyzed the se?lection of the optimum wavelet base theatrically, and then made a tentative comparison of different wavelet bases using the theoretical data and the gravity data obtained in North China. The research shows that db11 is the optimum wavelet base in the gravity data pro?cessing.