摘要
本文讨论了四种常用重力异常正演公式的计算速度以及用另外三种形体公式拟合立方体公式的计算精度。其结果表明,在通常情况下,用直立线元公式代替立方体公式进行正演计算,除保证一定计算精度外,还可提高计算速度近20倍。
In this paper, the speed of calculating gravity anomalies with four common forward formulas is discussed in details, and the calculating precision of another three single body formulas and the approximate cubic formula is expounded. It is thought that under normal eonditions a vertical line unite formula replaces a cubic formula in forward calculation, thus increasing the speed of calculation about 20 times besides assuring certain calculation precision.
关键词
重力异常
正演公式
源点
场点
勘探
Gravity anomaly, Forward fomula
Origin, Field point
