摘要
地震定位是地震监测、预测和其他地震学研究工作中最基础的工作之一,高效率和高精确度的地震定位工作对于地震预警工程等各项防震减灾工作的开展都具有重要的意义。本文通过模拟退火方法反演震中位置,并对模拟退火的温度、降温方式、扰动方式和收敛阈值等进行改变,分析各种参数对模拟退火法反演结果的影响。也对模拟退火法的优缺点进行了总结和分析。
Earthquake location is one of the most basic tasks of seismology research such as earthquake monitoring and earthquake prediction.Identification of earthquake location with high efficiency and accuracy is of great significance to the development of works of earthquake prevention and mitigation.In this paper,we invert the earthquake location by simulated annealing algorithm.And then,we change the initial temperature,temperature threshold,cooling-rate,convergence threshold,and disturbance mode respectively to find their influence on the result of simulated annealing algorithm.At last,we summarize and analyze the advantages and disadvantages of simulated annealing algorithm.
作者
李小晗
李光科
焦大伟
Li Xiaohan;Li Guangke;Jiao Dawei(Shandong Earthquake Agency,Ji’nan 250102,China;Chongqing Earthquake Agency,Chongqing 401147,China;Shandong Financing Guarantee Group,Ji’nan 250000,China)
出处
《地震科学进展》
2021年第5期223-229,共7页
Progress in Earthquake Sciences
基金
山东省地震局一般科研项目(YB2104)资助。
关键词
地震定位
模拟退火法
优化算法
earthquake location
simulated annealing algorithm
optimization algorithm
