Dynamic Adjustment of Horizontal Control Network

In the adjustment of indirect observations for a horizontal reiteration network,besides coordinate unknows,the speed and the acceleration unknowns are assured,so as to adjust the measured values in different times or in the same time but at different moments,then the above unknowns can be solved.When some control points have obvious displacements in positions,this method may indicate them objectively.This paper also includes:derivations of a few equations,the example in computer calculation,the assumed test,and the constrast and analysis between this method and the traditional one.