测绘科学技术学报2012，Vol.29Issue(4)：257-261,5.DOI:10.3969/j.issn.1673-6338.2012.04.006
基于第二类无奇点根数的改进根数
Improved Elements Based on Second Class of No-Singularity Variables
摘要
Abstract
Celestial motions are usually described by the Kepler elements. Under the conditions of small eccentricity and (or) small inclination, an apparent loss of accuracy due to the singularity came out. Therefore, several kinds of no-singularity variables were presented to avoid the Kepler elements at these moments. Based on the second class of no singularity variables, the formula and procedures were given to compute the ephemeris and orbits using the improved elements. The effects of no-singularity were demonstrated and the accuracy by the perturbed motion equations of the improved elements was validated through the simulations.关键词
Kepler根数/轨道根数/无奇点/小偏心率/小倾角Key words
Kepler elements/ orbit elements/ no-singularity variables/ small eccentricity/ small inclination分类
天文与地球科学引用本文复制引用
张中凯,杜兰,旦增曲英,张建权..基于第二类无奇点根数的改进根数[J].测绘科学技术学报,2012,29(4):257-261,5.基金项目
国家自然科学基金项目(41174025 （）
41174026). （）
