摘要
根据剪切波在各向异性介质中传播特性的理论研究结果 ,对几种分裂剪切波震相识别方法的相关性进行了理论探讨。在假定噪声和有用信号数据的方差近似于服从正态分布的前提下 ,给出了客观估计分裂剪切波震相及其可信度的方法。为了说明方法的有效性 ,列举了一个含噪声的模拟信号 ,给出了一定信度水平上的识别结果及误差。
Based on the characteristics of shear\|wave splitting parameters in the presences of weak anisotropic layers,the relativity among many kinds of splitting shear\|wave identification methods has been studied in this paper,the it puts forward the method estimating splitting shear\|wave phases and its reliability by using of the assumption that variance of noise and useful signal data obey normal distribution.To check the validity of new method,the identification results and error estimation about 95% confidence bands by analysing simulation signals have been given.
出处
《中国地震》
CSCD
北大核心
2000年第1期60-68,共9页
Earthquake Research in China
基金
中国国家自然基金!(49734150)
国家地震局地震科学联合基金!(198061)
关键词
剪切波分裂
识别方法
相关性
误差估计
地震波
Anisotropy\ Shear\|wave splitting\ Identification methods\ Relativity\ Error estimation
