修正算子γB_0~0的物理含义解释  

The interpretation of physical implication of modified operator γB_0~0

作　　者：周正华[1] 廖振鹏[1] 

机构地区：[1]中国地震局工程力学研究所

出　　处：《地震工程与工程振动》2004年第5期17-19,共3页Earthquake Engineering and Engineering Dynamics

基　　金：国家自然科学基金项目(50178065);国家社会公益研究专项(2002DIB30076);国家"九七三"攻关项目(2002CB412706);地震科学联合基金项目(101066)

摘　　要：本文依据球面波传播原理和介质阻尼效应解释了修正算子的物理含义,解释结果表明加修正算子γB00后的多次透射公式考虑了介质的几何扩散特性,或引入了介质的阻尼特性。最后,通过分析比较,指出基于球面波传播原理的物理解释更符合实际。In this paper, the physical implication of modified operator γB^0_0 is interpreted based on the theory of spherical wave propagation and damping effect of medium, and results show that modified multi-transmitting formula take geometric decay into account, or introduces damping effect of medium. Finally, it is pointed that physical interpretation based on the theory of spherical wave propagation is of more practical meaning.

关 键 词：修正算子 球面波 阻尼效应 多次透射公式 γB0^0 

分 类 号：P315.9[天文地球—地震学]