中国空间科学技术

中国空间科学技术

• •    

大气密度变化对卫星返回轨道参数的影响

杜文文   

  1. 北京机电研究设计所
  • 发布日期:1988-08-25

THE EFFECTS OF ATMOSPHERIC DENSITY VARIANCE ON RETURN TRAJECTORY PARAMETERS OF SATELLITE

Du Wenwen (Beijing INST.of Electromachinery)   

  • Online:1988-08-25

被引次数

1

摘要： 本文在考虑大气密度(90km高度以下) 随地理纬度、高度及时间(月份)随机变化的基础上,沿卫星的返回轨道建立了随机大气密度的统计模型。并应用该模型产生的随机大气密度样本,进行返回轨道的Monte Corlo法模拟计算。通过对模拟计算得到的返回轨道参数样本的统计处理,本文分析了大气密度变化对卫星返回轨道参数的影响。另外,本文还介绍了近似估计大气密度变化对返回轨道参数影响的影响系数法。

关键词: 卫星, 再入轨道, 大气密度, 统计模型, 近似计算

Abstract: In this paper, a statistical model of random atmospheric density as a function of latitude, altitude and time (month), below an altitude of 90km and along the return trajectory of satellite, has been developed.The sample of random atmospheric density generated by the model has been used in Monte Carlo trajectory simulating. By statistical analysis of samples of return trajectory parameters obtained in trajectory simulation, the effects of random atmospheric density variance on return trajectory parameters has been learned. Also, this paper deals with the "method of influence coefficients" used in evaluating approximately the effects of random atmospheric density variance on return trajectory parameters.

Key words: Satellite, Reentry trajectory, Atmospheric density, Statistical model, Approximate calculation.