摘要
在前人研究的基础上,本文用遗传算法反演了内蒙古中西部地区(106.85°E～113.13°E,36.69°N～41.57°N)的Q值和场地响应。发现用Atkinson方法得到的非弹性衰减系数c(f)与频率f无关,品质因子Q(f)是仅与频率有关的线性强函数,而与非弹性衰减系数无关。另外在将c(f)等参数代入moya方法求台站场地响应的过程中发现,有些基岩台站有放大作用。
Through inversing the Q value and site response in middle and west part of Inner Mongolia (106.85°～113.13°E, 36.69°～41.57°N) we found that, the non-elastic attenuation coefficient c(f) obtained from Atkinson method is incoherent with frequency f, and quality factor Q(f), which is only a linear function of frequency, is not relevant to non-elastic attenuation coefficient. In addition, bringing the parameters, such as (c(f),) into Moya method to calculate site response, we found some bedrock observatories have magnify effect.
出处
《华北地震科学》
2005年第1期22-26,共5页
North China Earthquake Sciences
基金
内蒙古地震局2004年"十五"项目资助.
关键词
遗传算法
内蒙古中西部
Q值
genetic algorithm
middle and west part of Inner Mongolia
Q value
