The Tianwen-1 Guidance, Navigation, and Control for Mars Entry, Descent, and Landing
Open Access
- 1 January 2021
- journal article
- research article
- Published by American Association for the Advancement of Science (AAAS) in Space: Science & Technology
Abstract
Tianwen-1, the first mission of Chinas planetary exploration program, accomplished its goals of orbiting, landing, and roving on the Mars. The entry, descent, and landing (EDL) phase directly determines the success of the entire mission, of which the guidance, navigation, and control (GNC) system is crucial. This paper outlines the Tianwen-1 EDL GNC system design by introducing the GNC requirements followed by presenting the GNC system architecture and algorithms to meet such requirements. The actual flight results for the whole EDL phase are also provided in this paper.Keywords
Funding Information
- National Natural Science Foundation of China (61903032, 61803028, 61673057, 61503023)
- Chinese National Space Administration
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