热槽法模拟退火分析及其改进

Simulated annealing analysis of heat bath method and its improvement

成都理工学院, 成都 610059

Chengdu College of Technology, Chengdu 610059

本文在Rothman[1]提出的热槽法的基础上,对剩余静校正的估计进行了大量模型试验。通过分析研究得出了对热槽法冷却进度表构造的一些指导性原则,并引进了回火退火的思想来改过热槽法的收敛性及抗噪声能力。试验表明这种回火退火算法其效果是令人鼓舞的,对目前低信噪比的地震资料剩余静校正的估计是很有实际价值的。

On the basis of Rothman's "heat bath method", many model experments have been performed for the residual statics estimation. Through analysis we obtain some directive principles on cooling schedules of the heat bath method. And the approach of tempering and annealing is introduced to improve the convergence and antinoise ability of the method. Expedment results show the tempering-annealing approach is effective. It has practical value in the residual statics estimation of low S/N seismic data.