Ai Songtao, Wang Shansi, Li Yuansheng, Liu Leibao
Chinese Antarctic Center of Surveying & Mapping, Wuhan University, Wuhan 430079, China.
Polar Research Institute of China, Shanghai 20036, China.
MethodsX. 2020 Jun 20;7:100968. doi: 10.1016/j.mex.2020.100968. eCollection 2020.
The traditional azimuthal intersection method is viable for situations with only two control stations but a simple height averaging is not rigorous because the intersections vary in their distances from the two stations. In order to obtain the high-precision azimuthal intersections, this study presented a multi-parameter adjustment method, together with the Earth curvature correction and the atmospheric refraction correction models. This method is robust with varied distances between the control stations and the targeted intersections, without limitation of station quantity.••
传统的方位交会法在仅有两个控制点的情况下是可行的，但简单的高程平均并不严谨，因为交会点到两个控制点的距离各不相同。为了获得高精度的方位交会结果，本研究提出了一种多参数平差方法，并结合了地球曲率改正和大气折射改正模型。该方法对于控制点与目标交会点之间不同的距离具有鲁棒性，且不受控制点数量的限制。
