反射信号和高速干扰的振幅和波形随着炮检距的增大而变化。
Reflection signals and high velocity noise change in amplitude and waveform with increasing offset between source and receiver.
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。
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.
结果表明，改进后仪器接收到的地震反射波主振幅、主频率、频带宽度、垂向分辨率及仪器记录信号的有效动态范围均有不同程度的提高。
The results show that the main amplitude, main frequency and frequency band of reflected wavelet and the effective dynamic range of system have different degrees of increase.
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