测角后交最佳点位的选择

Selection of Optimum Point Position for Angular Resection

推导了测角后交点位方差与观测值的显函数关系式。利用无约束最优化共轭梯度法，求出了最佳交会角和最佳点位的规律。分析了现行教科书中有关测角后交选点问题结论的局限性。

An explicit functional relation of the point position variance of angular resection with observation value was derived. Using optimized unrestrainted conjugated gradient method,the optimum intersecting angle and the regularity of optimum point position 'were found. In addition, the limitation problems of selecting point position presented in textbook are analyzed.