中国空间科学技术2024，Vol.44Issue(1)：44-53,10.DOI:10.16708/j.cnki.1000-758X.2024.0005
基于进入圆球的火星大气密度与风速反演方法
Inversion method of Martian atmospheric density and wind velocity based on entry sphere
韩碧 1李萧 2齐征3
作者信息
- 1. 北京中航智科技有限公司,北京 100176
- 2. 西安飞行自动控制研究所,西安 710000
- 3. 中国运载火箭技术研究院空间物理重点实验室,北京 100076
- 折叠
摘要
Abstract
A method for reconstructing Martian atmospheric density and wind velocity based on an entry sphere was proposed for the disadvantage of current detection methods.The sphere carries an accelerometer and a gyroscope to measure the drag acceleration and attitude.The wind velocity and density were decoupled based on the drag direction to solve the wind velocity independently,and the density was solved based on the high-precision wind velocity.The inversion algorithm error was analyzed through theoretical analysis and numerical simulation.The results show that the method can estimate the density and wind velocity of the middle and lower atmosphere effectively.The accuracy level of the transverse wind velocity and the density are less than 8％and 7％,respectively,below the height of 80 km.关键词
火星大气/进入圆球/风速/大气密度/加速度计Key words
Martian atmosphere/entry sphere/wind velocity/atmospheric density/accelerometer分类
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韩碧,李萧,齐征..基于进入圆球的火星大气密度与风速反演方法[J].中国空间科学技术,2024,44(1):44-53,10.
