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一种空间飞行轨迹的大地坐标计算方法
引用本文:常晓华,丰海,张婕,邱亚男.一种空间飞行轨迹的大地坐标计算方法[J].导弹与航天运载技术,2017(3).
作者姓名:常晓华  丰海  张婕  邱亚男
作者单位:北京宇航系统工程研究所,北京,100076
摘    要:针对弹道飞行器空间飞行轨迹的大地坐标计算,从弹道计算的地心球坐标出发,给出一种利用空间几何关系的迭代法,避免了地心直角坐标的转换过程。通过与传统算法的对比分析,验证了该算法的有效性,并进一步明确了该算法的迭代初值,分析了该算法在弹道飞行器空间飞行轨迹大地坐标计算中的适用性。

关 键 词:空间飞行轨迹  大地坐标  迭代法

Method of Geodetic Coordinates Calculation for Flight Trajectory
Chang Xiao-hua,Feng Hai,Zhang Jie,Qiu Ya-nan.Method of Geodetic Coordinates Calculation for Flight Trajectory[J].Missiles and Space Vehicles,2017(3).
Authors:Chang Xiao-hua  Feng Hai  Zhang Jie  Qiu Ya-nan
Abstract:Based on the spatial geometric relation-ships between geocentric spherical coordinate and geodetic coordinate, an iteration method to solve the geodetic coordinates calculation for ballistic vehicle trajectory is given. The iteration method avoids the transform of the geocentric rectangular coordinate. The efficiency of the iteration method is validated by the comparison of the traditional algorithm, and the initial iteration value is deduced. Finally, the applicability of the iteration method presented in the paper is analyzed by the numerical simulation.
Keywords:Flight trajectory  Geodetic coordinates  Iteration method
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