Adaptive Generalized-Minimum-Variance Attitude Control of a High Pointing-Accuracy Remote Sensing Satellite

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Kasiri Ali; Fani Saberi Farhad; Joudakian Vahid

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Journal Paper

Paper Information

Journal: Journal of Space Science and Technology Year:2023 | Volume:16 | Issue:58 (English Special Issue) Page(s): 1-23

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Information Journal Paper

Title

Adaptive Generalized-Minimum-Variance Attitude Control of a High Pointing-Accuracy Remote Sensing Satellite

Author(s)

Kasiri Ali | Fani Saberi Farhad | Joudakian Vahid | Issue Writer Certificate

Keywords

Attitude control

Minimum variance

Very-High-Resolution Imaging

Stereo imaging

Parasitic noise

Abstract

Many studies have investigated the problem of external disturbance rejection and also increasing the Attitude control system's robustness against the parametric uncertainties. Due to stochastic properties, noise effect minimization becomes an interesting and challenging problem in the field of spacecraft Attitude control that has been underestimated, while control actuators and attitude sensors themselves are important sources of noise generation., the main purpose of this paper is to (i)control the satellite’s attitude and (ii)minimize the variance of output, simultaneously. The Minimum variance controller, which is considered the simplest type of model predictive controller, has a powerful capability for minimizing the effects of output noise. This feature makes it a suitable control scheme for space-based high-resolution photography missions. so,, we described the conventional Minimum variance regulator method at first, then an Incremental version of the regulator has been presented to solve the tracking problem. Finally, the generalized Minimum variance controller which can control both minimum-phase and non-minimum-phase systems is derived for a high pointing accuracy spacecraft. The simulation results show the efficiency of the proposed controller to restrain the noise effects in a high-resolution tri-stereo imaging mission.

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