地震静校正全局最优化问题的求解

针对地震静校正存在的非线性和多参数性等问题，本文提出了一种全局优化的剩余静校正方法.在模型更新规则上，把模拟退火方法和均匀优化设计方法结合在一起，使模型的更新更为合理，从而加快了搜寻全局最优解的速度.同时提出了模型的不同分量的温度参数和退火过程的选取方式，把温度参数的选取与地震剖面的能量联系起来，使温度参数的选取具有自适应的特点.该方法克服了常规模拟退火方法所具有的寻优空间不均匀以及退火参数需通过多次试验选取的缺陷.通过实际地震资料的计算证明，本文提出的方法对地震静校正问题合理而有效.

A GLOBAL OPTIMIZED ALGORITHM FOR SEISMIC RESIDUAL STATICS CORRECTIONS

A global optimized algorithm is developed in this study for dealing with the problems of nonlinearity and multiparameter characteristics of the residual statics correction method. Integration of the simulated annealing approach with the uniform design optimized method makes the updating of the model more reasonable and therefore,increases the speed of searching for the global optimimzed solution. A procedure is proposed for selecting the temperature parameters of different model components and the process of decreasing the temperature. Here the selection of the temperature parameter is correlated with seismic energy, which makes the algorithm having a self-adapted characteristic. This new algorithm overcomes several shortcomings of the conventional simulated annealing method. Its application to seismic data shows that the algorithm developed in this study is more efficient than the conventional simulated annealing method.