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《Petroleum Geology & Oilfield Development in Daqing》 2006-06
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Global search two spots ray tracing method

SUN Xiang-e,et al.(Information Engineering Institute of Chengdu University of Technology,Chengdu 610059,China)  
Based on assumption that bed boundary is a cubic function,according to two spots ray tracing,second order nonlinear equations are derived.Through combining global search strategy with fast convergent quasi-Newton method,approximate linear minimization is firstly obtained by global search strategy,then quasi-Newton method is realized by DFP method,stable derivation of nonlinear equations is realized,and ray path and synthesized seismogram are achieved under complex interfacial conditions.
【Fund】: 高等学校博士学科点专项科研基金资助课题(No:20040616003)
【CateGory Index】: P631.443
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