potential field continuation

基本解释

This method may also be used for analysis of potential-field continuation conversion.
该方法可直接用于位场的延拓变换分析。
The values of analytical continuation at different depths from the potential field downward constitute the continuation field, on which the principal component analysis is made.
位场向下在不同深度上解析延拓的值构成延拓场，可对延拓场进行主成份分析。
On the contrary, downward continuation is one of the most difficult operations in conversion and processing of potential field, because of the high frequency oscillation effect.
向下延拓由于存在着高频振荡效应，是位场转换处理中最为困难的运算之一。