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七 VSCAN常速扫描这个模块是用由用户提供的一组速度,对整条测线或测线的一部分记录进行常速扫描。根据不同选件,可以把校正后的一个CDP的各道校正迭加,得到一个输出道(空选件),也可以不作共深度点迭加而实现道集扫描(NS选件,此选件也可以把几个CDP的对应道迭加)。输出道可以是整道记录,也可以是记录的一部分。常速扫描以后,将记录按一定的规律排列,使同一速度的扫描结果排在一起,以供用户从中选择最佳速度。其程序如图27所示。
Seven VSCAN constant scan This module is used by the user to provide a set of speed, the entire line or part of the line record for constant scan. Depending on the option, each correction of a corrected CDP can be overlaid to produce an output track (empty option) or to omit a common depth spot for incremental scan (NS option, this option You can also add a few corresponding CDP Road). The output track can be the entire track record, it can be part of the record. After the constant speed scanning, the records will be arranged according to a certain rule so that the scanning results of the same speed are arranged together for the user to select the best speed. The procedure is shown in Figure 27.