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随着三维高分辨率、高精度及宽方位地震采集技术的应用,野外采集获取了大量观测数据,海量数据对地震处理方法提出了更高的要求.本文将编码思想应用于混叠数据处理,能够较好地在提高地震处理效率的同时,压制串扰噪声.不同编码方式及编码算子直接影响成像串扰噪声压制效果、成像精度、计算效率及存储.本文采用在频率域对炮集分频的编码方式,并将其应用在最小二乘偏移当中,通过模型试算分析了动态、静态及动静混合三种编码方式的优缺点,初步探讨了不同编码策略的适应性.
With the application of three-dimensional high-resolution, high-precision and wide-azimuth seismic acquisition technology, a large number of observation data are acquired in the field, and the massive data put forward higher requirements on the seismic processing method.This paper applies the coding theory to the aliasing data processing, Which can suppress the crosstalk noise while improving the seismic processing efficiency.Different coding methods and coding operators directly affect the imaging crosstalk noise suppression effect, imaging accuracy, computational efficiency and storage.In this paper, The encoding method is applied to the least square deviation, and the advantages and disadvantages of the three encoding modes of dynamic, static and static and dynamic are analyzed through model trial calculation. The adaptability of different encoding strategies is discussed tentatively.