波阻抗遗传算法反演方法的研究及应用

作者介绍的遗传算法是在自然界生物遗传过程优选和进化原理的基础上，针对波阻抗反演的实际问题，对标准的遗传算法进行了改进，引入了模拟退火算法中的热槽法控制初始群体的产生，用逐位迭代的交换方式代替传统的杂交方式即随机选择杂交点进行交换。使用改进的遗传算法对地震波阻抗进行反演，可很好地提高反演的精度。在文中最后，作者通过理论模型和实例验证了上述的思想。

THE RESEARCH AND APPLICATION OF GENETIC ALGORITHM FOR WAVE IMPEDANCE INVERSION

By improving ordinary genetic algorithms according to biological optimization principles and viewing wave impedance inversion requirement, our new genetic algorithm introduces heat bath method ofsimulated annealing to control the generation of initial population and takes the mating mode by bit order iteration to replace the conventional mating modes, namely random choosing mating points. The precision of seismic wave impedance inversion can be improved by applying the new genetic algorithm. Finally, we verify the algorithm with theory model and field data.