How to integrate prior information into geophysical inversion and improve the in-definability of inversion has always been a research hotspot in the field of geophysical inver-sion.The methods of integrating prior information directly a objective function often increase the complexity of the objective function.In order not to add constraints terms to the objec-tive function and realize the integration of prior information more simply and conveniently,this paper takes a three-dimensional gravity regularization inversion as an example,in-tegrates prior information into the minimum support stabilizer,realizes the reconstruction of the minimum support stabilizer,and designs the single cube and double cube models for com-parative experiments.The experimental results show that compared with the three-dimen-sional gravity inversion results based on the minimum support stabilizer,the three-dimen-sional gravity regularization inversion based on the minimum support stabilizer combined with prior information can better restore the geometric morphology and physical property distribution of the anomalies,and the error iterative curve based on the new method conver-ges faster and the fitting accuracy is higher.Therefore,it is feasible to realize the integration of prior information through the reconstruction of the minimum support stabilizer,and this method is suitable for three-dimensional gravity inversion,which has the advantages of con-venient implementation and no additional constraints.
关键词
最小支撑稳定器/先验信息/重力/三维/正则化
Key words
minimum support stabilizer/prior information/gravity/three-dimensional/reg-ularization
维普
万方数据