城市测量控制网的设计

The Design of Urban Control Survey Network

本文以优化设计的实施性为目的，采用模拟法进行二类及三类城控网的设计。二类设计在算法上采用矩阵反演公式来提高计算速度及保证结果的优良性；三类设计（加测元素最佳位置的确定）使用敏感测度，并顾及周围边长精度的改变状况，构成多目标函数的最优数学模型，最后对大型网进行了详细的分析和说明。

In this paper ,for the purpose of the enforcement of optimization design,The simulated method is applied to design the second and the third class network of urban control survey. the algorithm of the second design, the equation of inverse matrix is adopted to guarantee the excellent results and the proceeding calculated rate.Among the determination of the best place of additional measured elements, the third design makes use of the sensitization text, Considering the accuracy changes of around length of side, the best mathematics model of multiple objective function is established.At last,A large-scale network is analysed and explained in detail.