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Research Article | Open Access

End-to-end Mars entry, descent, and landing modeling and simulations for Tianwen-1 guidance, navigation, and control system

Chao Xu1,2, Xiangyu Huang1,2, Minwen Guo1,2, Maodeng Li1,2 , Jinchang Hu1,2, Xiaolei Wang1
Beijing Institute of Control Engineering, Beijing, 100094, China
National Key Laboratory of Science and Technology on Space Intelligent Control, Beijing, 100094, China
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Abstract

On May 15, 2021, the Tianwen-1 lander successfully touched down on the surface of Mars. To ensure the success of the landing mission, an end-to-end Mars entry, descent, and landing (EDL) simulator is developed to assess the guidance, navigation, and control (GNC) system performance, and determine the critical operation and lander parameters. The high-fidelity models of the Mars atmosphere, parachute, and lander system that are incorporated into the simulator are described. Using the developed simulator, simulations of the Tianwen-1 lander EDL are performed. The results indicate that the simulator is valid, and the GNC system of the Tianwen-1 lander exhibits excellent performance.

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Keywords

Mars entry, descent, and landing (EDL)modeling and simulationTianwen-1 landerguidance, navigation, and control (GNC)

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Astrodynamics
Volume 6 Issue 1,
March 2022
Pages 53-67
DOI: 10.1007/s42064-021-0115-z

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Cite this article:
Xu C, Huang X, Guo M, et al. End-to-end Mars entry, descent, and landing modeling and simulations for Tianwen-1 guidance, navigation, and control system. Astrodynamics, 2022, 6(1): 53-67. https://doi.org/10.1007/s42064-021-0115-z

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Received: 16 September 2021
Accepted: 09 October 2021
Published: 04 January 2022
© The Author(s) 2022

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