瞬变电磁测深资料反演——逐步缩小搜索范围的演化算法  

Inversion of transient electromagnetic sounding data: Evolutionary algorithm with narrowing search area

作　　者：曹立斌[1] 

机构地区：[1]中国地质大学,湖北武汉430074

出　　处：《勘探地球物理进展》2004年第2期108-111,共4页Progress in Exploration Geophysics

摘　　要：将逐步缩小搜索范围的思想引用到郭涛算法上,提出了一种逐步缩小搜索范围的演化算法,并用此法对TEM资料进行反演计算,以较高的分辨率得到了地电模型的参数。反演结果表明,该算法对初始模型的依赖性不严重,不易陷入局部极小值,收敛较快。This paper presents an evolutionary algorithm that is derived from GT method by introducing the idea of searching in a narrowing area. The method is tested on transient electromagnetic sounding data, resulting in relatively high-resolution earth electricity parameters. The test also shows that the algorithm converges fast, and not strongly depends on the initial model.

关 键 词：瞬变电磁测深技术 反演技术 分辨率 电磁脉冲激发 郭涛算法 

分 类 号：P631.3[天文地球—地质矿产勘探]