本文对我国目前常用的磁测数据通化问题进行研究,并利用广东地区历年磁测数据通化结果,分析影响通化精度的各种因素,认为选择合适距离的通化台是保证达到一定通化精度的关健.文中给出了通化距离与通化精度的定量关系.同时对如何提高通化精度提出一点初步看法. In this paper, the commonly used magnetic measurement data in our country is studied, and the results of magnetic data normalization in Guangdong are analyzed to analyze various factors affecting the accuracy of magnetic resonance imaging. It is concluded that the selection of suitable distance of Tonghua station is the key to ensure a certain degree of generalization accuracy In this paper, the quantitative relationship between the generalization distance and the generalization accuracy is given, and some preliminary views on how to improve the generalization accuracy are given.