Publisher : The Korean Society for Aeronautical & Space Sciences
DOI : 10.5139/JKSAS.2016.44.4.298
Title & Authors
Attitude determination of cubesat during eclipse considering the satellite dynamics and torque disturbance Choi, Sung Hyuk; Kang, Chul Woo; Park, Chan Gook;
Attitude determination of satellite is categorized by deterministic and recursive method. The recursive algorithm using Kalman filter is widely used. Cubesat has limitation for payload to minimize then only two attitude sensors are installed which are sun sensor and magnetometer. Sun sensor measurements are useless during eclipse, however cubesat keeps estimating attitude to complete the successful mission. In this paper, Attitude determination algorithm based on Kalman filter is developed by additional term which considering the dynamics for SNUSAT-1 with disturbance torque. Verification of attitude accuracy of the algorithm is conducted during eclipse. Attitude determination algorithm is simulated to compare the performance between typical method and proposed algorithm. In addition, Attitude errors are analysed with various magnitude of disturbance torque caused by space environment.
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