@inproceedings{cec2758741284c409bcd1b39aa57809c,
title = "Robust trajectory tracking control for soft landing on small bodies with input saturation",
abstract = "To deal with the uncertainties of asteroid gravitational field during landing on a small body, a fuzzy gain-scheduling output feedback control for robust trajectory tracking is proposed for soft landing on small body surface with actuator saturation via fuzzy Lyapunov function. For the saturation nonlinearity, the deadzone function of control input is introduced as a supplementary controller input. Then, a gain-scheduling output feedback controller is introduced to stabilize the saturated Takagi-Sugeno (T-S) fuzzy system with optimal L2 gain performance. The application of the fuzzy Lyapunov function tackles with the conservation problem in controller design. As a result, the synthesized system enjoys an enlarged stability region and enhanced robust performance, which are essential for the success of small body soft landing. The landing control algorithm proposed in this paper is demonstrated by a flight dynamics simulating the powered descent on the asteroid of Eros 433.",
author = "Jiateng Long and Yang Liu and Pingyuan Cui",
note = "Publisher Copyright: {\textcopyright} 2018 Univelt Inc. All rights reserved.; 15th International Space Conference of Pacific-basin Societies, ISCOPS 2018 ; Conference date: 10-07-2018 Through 13-07-2018",
year = "2018",
language = "English",
isbn = "9780877036555",
series = "Advances in the Astronautical Sciences",
publisher = "Univelt Inc.",
pages = "291--304",
editor = "Misra, {Arun K.} and Li Ming and Yasuhiro Morita",
booktitle = "Promote the Progress of the Pacific-Basin Region through Space Innovation",
address = "United States",
}