【摘要】 概括了平差模型的影响分析的主要成果，研究了带约束的参数平差模型应用随机模型的协方差阵扰动影响的分析问题，建立了＾ＸＢ（Ｇ）与＾ＸＢ的一些关系式，这里＾ＸＢ（Ｇ）是扰动模型的未知参数向量Ｘ的最小二乘估计，＾ＸＢ是带约束的参数平差模型的Ｘ的最小二乘估计。此外还定义了扰动模型的ＷｅｌｓｃｈＫｕｈ统计量与Ｃｏｏｋ距离，给出了它们的简单计算式。更多还原

【Abstract】 Based on the main results of influence analysis in the adjustment model, the paper studys the influence problem of least squares estimater for the adjustment model under the restriction condition with covariance matrix disturbance, and established the relationships between B(G) and THX] B , where B(G) is the least squares estimater of unknown parameter vector X of the disturbing model, and ^]B is of the adjustment functional model under the restriction condition; then still defined the WelschKuh statistic and Cook distance and obtained their computationally convenient formulae, which can be assessed the disturbing influence.更多还原