基于浮点遗传算法的近震定位方法  

A local earthquake locating method based on genetic algorithm

作　　者：王洪体[1] 陈阳[2] 庄灿涛[2] 

机构地区：[1]中国地震局地球物理研究所,北京100081 [2]中国地震局地震预测研究所,北京100036

出　　处：《地震》2006年第2期12-18,共7页Earthquake

基　　金：国家重点基础研究发展规划项目(2001CB711005-1)

摘　　要：文中介绍了一种适用于基于浮点遗传算法的地震定位问题方法,在该算法中选用了浮点基因表示方法、参数和基因取值范围一致来避免编码解码,提出了算法的动态结束条件及处理方法。通过实际运算检验证明使用该方法来实现地震定位可以避免地震定位中的不稳定性和对初值的依赖性,从而保证地震定位的可靠性和稳定性,在时效方面也达到了相当的水平,是一个具有实际使用价值的算法。A local earthquake locating method based on genetic algorithm is introduced in Ibis paper. In this method, the floating-point gene expression and same value space for both gene and earthquake parameters are used to avoid coding and decoding. A dynamic termination condition and unique resolution are also suggested in this paper. It is verified by practical computation that Ibis method is stable and does not depend on initial value, as the same, it reaches a high time efficiency. It is a practicable algorithm for daily local earthquake locating.

关 键 词：地震定位 遗传算法 浮点基因表达 稳定性 时效性 

分 类 号：P315.3[天文地球—地震学]