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多波多分量勘探技术已经成为广泛采用的技术方法,而作为分离多波资料,提取有效信息的重要手段,波场分离已经成为处理流程中不可缺少的一个环节。波场分离可以通过提取多波资料的运动学信息或者动力学信息进行,但由于原有方法在处理干涉波时会产生严重失真,不能在对应区域准确分离干涉波形,所以有一定的应用局限。本文通过奇异值分解方法在时域和时频域求取极化参数,并通过选取信噪比能量团以较准确求取该参数,利用OPF(oblique polarization filter)方法最后达到将叠加干涉波场分离的目的。该方法对数据质量要求较高,文中对理论数据的处理效果较好,在实际数据的处理上还有待于进一步改进和完善。
Multi-wave and multi-component exploration technology has become a widely used technical method. As an important method to separate multi-wave data and extract effective information, wave field separation has become an indispensable link in the processing flow. Wavefield separation can be performed by extracting the kinematic or dynamic information of multi-wave data. However, the original method can cause serious distortion in the processing of the interference wave and can not accurately separate the interference waveform in the corresponding region, so it has some limitations. In this paper, we obtain the polarization parameters in the time domain and the time-frequency domain by using the singular value decomposition method and obtain the parameters more accurately by choosing the energy groups of the signal-to-noise ratio. Finally, using the method of oblique polarization filter (OPF) The purpose of separation. The method requires high data quality, and the treatment effect of the theoretical data in the article is better. The actual data needs to be further improved and perfected.