A method for extracting both effective reflection events and zero-offset trace signals is developed using the lateral coherence and the property that signal amplitude changes with offset.

本文利用信号的横向相关性和信号振幅随炮检距变化的特征，提出一种既能提取有效反射信号同相轴，又能提取零炮检距道信号的方法。

youdao

With the method of dynamic focus, the focus point can be located in the coherence gate during the whole depth scanning. So, the lateral resolution keeps constant.

采用了动态聚焦的方法，能使整个扫描过程中，焦点一直落在相干门内，保证横向分辨率是不变的。

youdao