在多次迭加资料处理中,一般是采用公式计算或采用速度谱法求取动校正量,然而,实践表明,在煤田地震勘探中,采用公式法计算出的动校正量一般偏大,因为煤田地震勘探多是在层状非连续介质中进行的。采用速度谱法则往往因煤田较浅及资料不好而难于求得速度谱,即使求得速度谱也往往因离散性大而影响迭加的效果。因此如何根据煤田地震地质条件的特点,探讨新的求动校正量的方法,就成为 However, practice shows that the dynamic correction calculated by the formula method is generally large in the coalfield seismic exploration, because in the process of multiple data overlay, formula correction or velocity spectroscopy is usually used to calculate the amount of dynamic correction Coalfield seismic exploration is mostly carried out in layered discontinuous media. The speed spectrum rule is often difficult to obtain the speed spectrum due to the shallow coalfield and poor data, even though the speed spectrum obtained is often affected by the large discreteness. Therefore, according to the characteristics of geological conditions in coalfields, discussing the new method of seeking correction, it becomes