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Improved uncertainty propagation method of dynamic model for Mars entry spacecraft

FU Hui-min XIAO Qiang WU Yun-zhang

FU Hui-min, XIAO Qiang, WU Yun-zhang. Improved uncertainty propagation method of dynamic model for Mars entry spacecraft[J]. 航空动力学报, 2014, (5): 1223-1233.
引用本文: FU Hui-min, XIAO Qiang, WU Yun-zhang. Improved uncertainty propagation method of dynamic model for Mars entry spacecraft[J]. 航空动力学报, 2014, (5): 1223-1233.
FU Hui-min, XIAO Qiang, WU Yun-zhang. Improved uncertainty propagation method of dynamic model for Mars entry spacecraft[J]. Journal of Aerospace Power, 2014, (5): 1223-1233.
Citation: FU Hui-min, XIAO Qiang, WU Yun-zhang. Improved uncertainty propagation method of dynamic model for Mars entry spacecraft[J]. Journal of Aerospace Power, 2014, (5): 1223-1233.

Improved uncertainty propagation method of dynamic model for Mars entry spacecraft

基金项目: 

National Basic Research Program of China (2012CB720000)

详细信息
    作者简介:

    FU Hui-min,E-mail:fuhuimin@263.net

  • 中图分类号: V41

Improved uncertainty propagation method of dynamic model for Mars entry spacecraft

Funds: 

National Basic Research Program of China (2012CB720000)

  • 摘要: In order to research the uncertainty propagation laws of Mars entry dynamic equations for the Mars entry phase, an improved method was presented for analyzing the effect of the initial state uncertainties and uncertainty factor on the system state in the state trajectories. When applying the method to the entry phase of one of the NASA Mars exploration missions, the simulation results agreed well with the Monte Carlo method, especially the flight path angle simulation at least reaching 92%. It is found that the improved method can not only predict the uncertainty propagation laws with high accuracy of at least 92% in flight path angle simulation and large application scope from -0.1 degree to 0.1 degree, compared with local linearization method, but also save several hours relative to Monte Carlo method.

     

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出版历程
  • 收稿日期:  2013-02-01
  • 刊出日期:  2014-05-28

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