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Taking KT-1A satellite in practical flight as the research object, this paper adopts LOR infinite horizon periodic controller to perform the three-axis stabilized attitude control, and the magnetorquer is taken as the only actuator. It specially studies the application constraints produced by different assumptions in the mathematical model which may not be met in actual projects, including that the...
Satellite attitude control systems have too many dynamic variables for all cases of operation. Therefore, their tests for all these conditions may not be possible or may require highly specialised test environments. As an alternative to these time consuming and expensive methods, real time digital simulation and hardware in the loop methods that are developed in the latest years can be used. This...
Due to the parametrization of the attitude for closed loop rigid body systems we either encounter an inherent geometric singularity using Euler representation, or obtain dual equilibrium points using the unit quaternion. In order to save energy during attitude maneuvers the choice of equilibrium point and thus rotational direction is imperative for quaternion feedback systems. Normally the shortest...
This paper is about modeling and control of Miniature Aerial Vehicles -MAVs for indoor scenarios, specially using, micro coaxial and quadrotor systems. Mathematical models for simulation and control are introduced and subsequently applied to the commercial aircraft: the DraganFlyer quadrotor and the Micro-Mosquito coaxial flying vehicle. The MAVs have been hardware-modified in order to perform experimental...
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