限制边长投影变形最佳抵偿投影面的确定

Determination of optimal compensation projecting plane for restrictions of the length projection deformation

本文基于高斯投影原理,以测区各边高斯投影变形总量最小为标准,提出了使GPS测量边长投影变形更小的最佳抵偿投影面算法;为了使GPS边长与地面实测边长尺度高度一致,提出了基于实测边长尺度比残差的最佳抵偿投影面二次优化方法。

Based on the principle of Gauss projection and standards on the smallest total projection deformation of Tunnel axis length, this paper introduces the calculation of optimal compensation projecting plane to have the projection deformation of GPS measurement length smaller. In order to make the GPS length highly consistent with the ground practically measured length, the paper also gives quadratic optimization method of optimal compensation projecting plane, which is based on scale residual of practically measured length.