现今区域活动块体划分方法研究

本文提出的将拟准检定法与DDA正分析方法相结合进行区域活动块体的划分，改善了观测资料缺乏区域的活动块体划分结果，为完整地研究区域活动块体运动变形提供了一种思路。另外，以川滇地区为实例，对该方法的具体实施作了简单的介绍。     

用拟准检定法和岭估计解算病态污染方程

针对法方程呈现病态且观测受到污染而不严格服从正态分布的情况,探讨运用拟定法抗御粗差,用岭估计改善法方法的病态性,拟准检定法是根据真误差与观测值的确定关系式Ｒ△＝－ＲＬ求解真误差估值△。在Ａ或Ａ＾ＴＡ病态的情况下,直接求Ｒ是不稳定的,对Ａ作奇异值分解计算Ｒ,可避免对病态短阵直接求逆,由于Ｒ是秩亏的,通过附加“拟准观测真误差估值范数极小”的条件来求解真误差估值,拟准检定法与岭估计两者的结合,一般情况下有效地剔除了粗差,而且改善了方程的病态性,计算简单,快捷,结果比较理想。     

A new approach for distinguishing different deformation trend blocks with displacement observations

Introduction The accumulation of high precision GPS data has great significance for understanding and explaining crustal movement and establishing the geodynamical model correctly. However, it is an important basic task to study block movement with the displacement data which covers the datum influence information, as well as the deformation information of the block and abnormal deforma-tion information in the block such as fault or zone of fracture and so on. Firstly steady or com-parativel…