摘要
介绍一种重、磁界面计算的广义反演方法。该方法的主要特点是引入了模型参数的协方差矩阵(Cm),使得反演过程能够利用模型参数的先验信息而加快收敛速度。文中首先给出了迭代公式,并给出了详细算法。其次,通过理论模型的计算对方法作了测试。根据这些测试结果,重点讨论了Cm在反演中的作用。最后给出了一个应用实例,并与频率域方法作了比较。
In this paper,the generalized inversion method on the computation of gravity and magnetic interfaces is presented.The main characteristic of the method is that it introduces a prior information matrix (Cm) of model parameters,and fastens the convergence of the iteration process.The iteration formula and detailed algorithm are given and the method is examined through the computation to theoretical models.The function of Cm in computation of interfaces are discussed in detail according to the examined results.Finally,a applied example is illustrated and the result of generalized inversion method is compared with the result of frequency domain method.
出处
《地球科学(中国地质大学学报)》
EI
CAS
CSCD
北大核心
1995年第5期599-604,共6页
Earth Science-Journal of China University of Geosciences
基金
国家自然科学基金
关键词
磁法勘探
磁界面
界面计算
广义反演法
generalized inversion method,interface computation,a prior information.