中国空间科学技术

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两种J_2摄动模型下卫星编队相对位置误差分析

张皓;李明涛;张秀程;   

  1. 中国科学院空间科学与应用研究中心;中国科学院研究生院;
  • 发布日期:2010-06-25

Error Analysis of the Relative Motion in Formation Flying Satellites Based on Two J_2 Perturbation Models

Zhang Hao1,2 Li Mingtao1,2 Zhang Xiucheng1,2(1 Center for Space Science and Applied Research,Beijing 100190) (2 Graduate School of Chinese Academy of Science,Beijing 100190)   

  • Online:2010-06-25

摘要： 为了研究一个轨道周期内卫星和卫星编队的运动规律,在J2摄动理论基础之上,采用摄动加速度分析方法,给出了J2瞬时摄动模型。以近地太阳同步轨道卫星和双星编队为例,与只考虑J2一阶长期项的平均摄动模型比较,仿真分析结果表明,对卫星而言,一个轨道周期内,卫星半长轴相对平均半长轴漂移达到18km,偏心率相对平均偏心率漂移达到10-3量级,轨道倾角相对平均轨道倾角漂移达到0.01°,即由于J2瞬时摄动的影响,卫星运动发生了摄动;对双星编队而言,一个轨道周期内,两星相对位置的径向误差达到5km,沿迹向误差达到19km,法向误差相对较小,在10-2量级上,相对距离的误差达到了19km,随着时间的推移,误差会越来越大。

关键词: 编队飞行, 轨道摄动相对运动误差分析, 卫星

Abstract: To study the motion of formation flying satellite in one orbital period,the J2 instant perturbation model was derived based on the perturbation acceleration theory.To explore the effect of J2 instant perturbation,a SSO Satellite and a two-satellite formation were taken as examples.Compared with the J2 average perturbation model,for the satellite in one orbital period,the semi major axis had an error of 18km,the eccentricity had an error of 10-3,and the orbit inclination angle had an error of 10-2 degree.And for the formation in one orbital period,the relative radial position offset was 5km,the relative ink-track position offset was 19km,the relative normal offset was 10-2,and the relative distance offset was 19km,and they grew with time went on.