南京理工大学学报（自然科学版）2009，Vol.33Issue(5)：607-611,5.
正常重力和椭球地表对弹道计算的影响
Effect of Normal Gravity and Ellipsoid Earth Surface on Trajectory Calculation
林献武 1王中原 1王天明 1常思江1
作者信息
- 1. 南京理工大学,动力工程学院,江苏,南京,210094
- 折叠
摘要
Abstract
To consider the effect of the earth on the calculation of ultra range trajectory more accurately, an elliptic earth trajectory model adopting accurate normal gravity is established. The calculation method for the rocket impact point and flight height is discussed. An accurate normal gravity calculation method is deducted and an elliptic earth trajectory model is obtained. The error of range calculation by adopting a plain earth model is calculated and analyzed. The result shows that, in terms of the long range trajectory, the range calculation error caused by the ellipsoid earth surface trajectory model is smaller than that by the plain earth surface trajectory model.关键词
正常重力/正常地球椭球/弹道/球谐函数/射程Key words
normal gravity/normal earth ellipsoid/trajectory/spherical harmonious functions/ranges分类
军事科技引用本文复制引用
林献武,王中原,王天明,常思江..正常重力和椭球地表对弹道计算的影响[J].南京理工大学学报（自然科学版）,2009,33(5):607-611,5.
