Micro-Satellite Configuration of Discoid and Asymmetrical, Gyroless with Thrusters Three-Axis Robust Control and Stability Analysis
The center of mass of the micro-satellite can offset due to fuel consumption in the course of propulsion, with the interference of external orbital environment such as gravity gradient torque and solar radiation torque. If the structural shape is discoid and asymmetrical, the attitude control may...
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| Format: | Article |
| Language: | English |
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Taiwan Association of Engineering and Technology Innovation
2014-01-01
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| Series: | International Journal of Engineering and Technology Innovation |
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| Online Access: | http://sparc.nfu.edu.tw/~ijeti/download/V4-no1-01-17.pdf |
| Summary: | The center of mass of the micro-satellite can offset due to fuel consumption in the course of propulsion, with
the interference of external orbital environment such as gravity gradient torque and solar radiation torque. If the
structural shape is discoid and asymmetrical, the attitude control may be difficult. The only solution is to design a
robust controller, so that the attitude pointing of the satellite can meet the mission requirements with the interference
of internal parameter perturbation and external disturbance. Meanwhile, in order to reduce the weight and
manufacturing cost of satellite, in the design of satellite attitude angular rate determination, the project used
unscented kalman filter (UKF) algorithm, coarse sun sensor (CSS) and earth horizon sensor (EHS) as measurement
components to obtain the satellite attitude without rate gyro.
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| ISSN: | 2223-5329 2226-809X |