摘要
对地壳应变参数的反演可以确定地壳的应变积累,理解地壳的真实运动状况,传统的地壳应变参数反演都是基于最小二乘,而最小二乘只考虑系数矩阵误差的影响,基于此,将整体最小二乘引入到地壳应变参数反演中,通过分析地壳应变模型中自变量和因变量的误差状况来确定地壳应变参数的随机模型,通过实例分析验证了基于整体最小二乘的地壳应变参数反演结果精度最高。证实了该方法在研究地壳应变参数中的可行性。
The inversion of strain parameters can determine the strain accumulation, and know about the real motion of the crust. The traditionally method of inversion of strain parameters is the least squares. This method can only consider the effect of coefficient matrix. This paper proposed the total least squares to determine the inversion of strain parameters. The random model of strain parameters was determined according to analyzing the error of independent and dependent variable. Through a case study, the precision of inversion of strain parameters based on total least square is higher than the least square. The feasibility of the method to determine the strain parameters is proved.
出处
《江西科学》
2015年第3期379-382,434,共5页
Jiangxi Science
基金
长江水利委员会长江科学院开放基金(CKWV2014217)
精密工程与工业测量国家测绘局重点实验室开放基金项目资助(PF2013-9)
关键词
整体最小二乘
地壳应变参数
系数矩阵
随机模型
total least squares （TLS）
crust strain parameter
coefficient matrix
random model
