Method of Geodetic Coordinates Calculation for Flight Trajectory
Chang Xiao-hua;Feng Hai;Zhang Jie;Qiu Ya-nan;Beijing Institute of Astronautical Systems Engineering;
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.