二阶差分最大叠加能量法地表一致性静校正

如果把地表一致性静校正量的计算作为一个最佳问题来考虑,那么叠加能量便是静校正量的函数。也就是说,施加正确的静校正量,可使叠加能量达到极大。因而,最佳静校正量可以通过叠加能量的极大值来求得。本文采用二阶差分法拾取的静校正量作为最大叠加能量法拾取静校正量的初值,然后通过几次迭代运算,便可求出最佳静校正值。理论试算和用于实际资料处理结果表明,该法能解决大静校正量的静校正问题,克服常规静校正方法的不足。

Surface-consistent statics using second order difference and maximum stack energy

If the calculation of surface-consistent static correction va-lues is considered as an optimum problem,stacked energy is the function of static correction values. In other words ,the use of proper static correction values brings the maximum stacked energy. Thus,the optimum static correction values can be derived from the maximum stacked energy. The static correction values picked up using second order difference is taken as the initial values of those picked up using the maximum energy. Then the optimum static correction values can be calculated from the initial values by performing iterative operation for several times. It is theoretically and practically shown that this method can cope with big value statics to make up the deficiency of common static correction methods.