Document Type : Research Paper

Authors

1 Department of Aerospace Engineering Sharif University of Technology, Tehran, IRAN

2 Department of Aerospace Engineering, Sharif University of Technology, Tehran, IRAN

3 Satellite Systems Research Institute, Iranian Space Research Center, Tehran, IRAN

Abstract

Temperature sensors have recently been proposed for attitude estimation (AE) of Low-Earth satellites. However, since half of the satellite surfaces do not receive any heat flux from the Sun, conduction occurs among the satellite surfaces. In this regard, the present study has focused on the effect of surfaces’ conduction as well as inner radiation on AE using temperature sensors. The nonlinear filter of Unsceted Kalman filter is adopted for AE, and the developed model to describe temperature rates is verified using Thermal Desktop and SINDA software. Monte Carlo simulations prove positive effect of the conduction on AE performance against negative role of the inner radiation.

Keywords

Main Subjects

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