This paper has made some searching in Complex structure fine pre-stack processing and pre-stack migration imaging, and has achieved some results.

本文就这两个问题，在复杂构造叠前精细处理、复杂构造叠前偏移成像等方面开展了一些探索，取得了一定的效果。

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The classical algorithms generally take complex pre-processing before identification, and the pre-processing has great influence on the performance of recognition.

预处理质量好坏对识别的效果影响很大，如果该过程比较复杂那么就会降低算法时效性和稳定性。

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