复地震道技术在工程物探信号处理中的应用

复地震道技术在石油物探的地震资料处理中应用相当成功，但在工程物探领域应用较少，或应用的效果不好。本文介绍这一技术的基本原理与算法，并将它应用到探地雷达公路探测、锚杆和桩基的弹性波测试、防渗墙的垂直反射法检测等工程物探信号处理中。结果表明，相比于瞬时振幅、瞬时频率，瞬时相位对弱信号检测和异常点提取具有较好的效果。

The Application of Complex Seismic Trace Technique in Signal Processing of Engineering Geophysical Prospecting

It's very successful that complex seismic trace technique is applied in seismic data processing of petroleum geophysical prospecting,but in the domain of engineering geophysical prospecting the application is less,or the effect is not good.The paper introduces the basic principle and algorithm of this technique,and applies it in signal processing of engineering geophysical prospecting such as ground penetrating radar probing of highway,elastic wave testing of anchor and pile foundation,vertical reflection method of detecting impermeable wall.The results show that instantaneous phase has a better effect on weak signal detecting and anomalous point abstraction comparing with instantaneous amplitude and instantaneous frequency.