DESIGN AND TESTING OF ATTITUDE DETERMINATION AND CONTROL SUBSYSTEM FOR ALAINSAT-I: 3U CUBESAT

被引：0

作者：

Kamalaldin, Karim ^{[1
,4
]}

Atallah, Mohammed ^{[1
]}

Okasha, Mohamed ^{[1
]}

Jallad, Abdul-Halim ^{[2
,3
]}

机构：

[1] United Arab Emirates Univ, Dept Mech & Aerosp Engn, Al Ain, U Arab Emirates

[2] United Arab Emirates Univ, Dept Elect Engn, Al Ain, U Arab Emirates

[3] Natl Space Sci & Technol Ctr, Al Ain, U Arab Emirates

[4] Egyptian Space Agcy, Al Ain, U Arab Emirates

来源：

IGARSS 2023 - 2023 IEEE INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM | 2023年

关键词：

CubeSats; Attitude Control; PID design; Sun-Pointing; Nadir Pointing; Detumbling;

D O I：

10.1109/IGARSS52108.2023.10282690

中图分类号：

P [天文学、地球科学];

学科分类号：

07 ;

摘要：

This paper presents the development and implementation of control algorithms for the Attitude Determination and Control Subsystem (ADCS) of AlAinSat-1, a 3U CubeSat. It focuses on detumbling, sun pointing, nadir-pointing, and ground contact modes. Furthermore, it discusses the mathematical models of different sources of disturbance, such as gravity gradient, magnetic torque, atmospheric drag, and solar radiation pressure. The successful implementation of the B-dot algorithm for detumbling and a PID controller for nadir-pointing is demonstrated through numerical simulations. The simulation results indicate a final spinning rate of 1 deg/s in detumbling mode, confirming the efficacy of the algorithm. The implemented PID controller effectively regulates the attitude, resulting in a 1-degree pointing accuracy during the nadir-pointing mode.

引用

页码：257 / 260

页数：4

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