Relative seismic travel time determined by the genetic algorithm and the micro genetic algorithm
Date Issued
2007
Date
2007
Author(s)
Yu, Shang-Hsueh
DOI
zh-TW
Abstract
Abstract
Seismic relative arrival times among a local network provide important information for the regional velocity structure. To map the precise velocity structure, we need to find precise relative arrival times. In the past, determining seismic relative arrival times is posed as an overdetermined and linear inverse problem to find an approximate solution. In our method, it is formulated in terms of a non-linear problem and is dealt with using the genetic algorithms. We experiment with data from IndepthIII and an Ocean Bottom Seismometer array. We compare the efficiency between the genetic algorithm and the micro-genetic algorithm. It is shown that after proper normalization、filter and alignment. GA is very efficient in determining the relative arrival times.
Subjects
基因演算法
相對到時
genetic algorithm
micro-GA
relative arrival time
Type
thesis
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