摘要
针对矿山控制网扩建时的实际情况，提出了混合分组逐次平差的函数模型，证明了扩建网极大验后平差的结果等于混合整体平差的结果，推导了单位权方差的无偏估计公式及扩建，或坐标和联系参数的协因数矩阵，最后，用一实例验证了扩建网极大验后平差的全部结论公式。
In view of the practical situation where mining control network is expanded，this paperproposes the function model of mixed group succesive adjustment，in which the results ofmaximum aftereffect adjustment to the expanded network are equal to those of overall mixedadjustment．The unbiased estimation formula of unit weight variance are derived and the co-factor matrices of connective parameters and coordinates in the expanded network are given.Finally，a practical example is given to verify all the result formulas of this adjustment.
基金
中国有色金属工业总公司高校科研基金
关键词
矿区扩建网
矿山测量
平差
expanded mining control network；overall mixed adjustment mixed group succe-sive adjustment
maximun aftereffect estimation；connective parameters
