摘要
讨论了用模拟退火（ＳＡ）方法进行地震资料的参数反演，利用快速的降温方式实现模拟退火反演，从而形成了快速模拟退火（ＦＳＡ）算法．模拟退火反演的优点是可以突破反演过程中局部最优的限制，获得全局最优解．因此，ＳＡ方法适于解决地震反演中的非凸性目标函数的最优化问题．ＦＳＡ算法是针对经典模拟退火（ＣＳＡ）方法计算效率低的问题而提出的．ＦＳＡ算法的收敛速度比ＣＳＡ算法快，可以提高模拟退火反演的计算速度，使该方法向实际应用方向跨进了一步．通过理论模型试算和实际资料处理，证明该方法精度高、实用性强．
The aim of this paper Is to discuss how use the simulated annealing (SA) method in seismic inversion, and form the fast simulated annealing (FSA) technique by using a fast cooling schedule. It is the most advantage that SA method can obtain the globally optimum solution by a simulated annealing process. SA algorithm is applicable to nonconvex optimizationproblem of seismic inversion. In order to improve the computational speed of classical simulated annealing (CSA), FSA method is used. Because the convergent speed of FSA is faster than CSA, FSA can save the computational time. This method advance the applicability of simulated annealing to real seismic data processing. The example of synthetic and real data show that the accuracy of the method is satisfactory.
出处
《地球物理学报》
SCIE
EI
CSCD
北大核心
1995年第A01期123-124,共2页
Chinese Journal of Geophysics
基金
国家自然科学基金
关键词
地震反演
快速模拟退火
概率分布
地震数据
Seismic inversion, Fast simulated annealing, Optimization, Probability distsibution.
