2种改进的海底面反射实时追踪算法及其比较研究

为了解决声学地层剖面的海底面反射实时追踪问题,本文对基于振幅信息的能量比法和基于相位信息的相关法进行了改进研究,分别重点研究了能量比法的最佳时窗以及相关法的模型道计算问题,通过实际测试数据说明这2种算法各自的优缺点,并指出在实际运用中需要灵活选择这2种算法。最后通过与国外商业采集软件追踪功能的比较,说明本文算法的优越性,认为该算法可以在实际工程中加以推广使用。

The research of two improved algorithms of real-time tracking the seabed reflection and their comparative analysis

In order to study on real-time tracking the seabed reflection in sub-bottom profile data acquisition, the two improved algorithms were discussed: energy ratio based on amplitude information and cross-correlation based on phase information, and the best window of energy ratio and the model trace of cross-correlation were especially studied. Because of the different advantages of the two improved algorithms, we should be agile when making the choice between them. The algorithms mentioned in the article are superior to most of these applied in foreign commercial software, and could be widely used in actual survey.