地理坐标和直角坐标相互转换可逆算法的研究

Research on Reversible Algorithm for Inter-conversion between Geographic Coordinates and Rectangular Coordinates

分析了由地理坐标向地面直角坐标转换的高斯-克吕格投影简化模型的不足之处,提出了一种新的基于圆球模型的可逆的相互转换算法,且由采用最小二乘法实现的曲线拟合修正函数对圆球模型误差进行补偿。该算法简单、高效,且可直接求解,特别适用于DSP应用场合。

By analyzing shortcomings of the simplified model of Gauss-Kruger projection of the conversion from geographic coordinates to rectangular coordinates,a new reversible algorithm which is based on global model and is compensated by correct function using curve fitting is provided.