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The problem of attitude tracking control for rigid satellite is studied in this paper. Based on the dynamic equation and kinematics equation using error quaternion and error angular velocity, a sliding mode controller is initially designed to solve this problem. In order to avoid inherent chattering of sliding mode control and then improve control effect, a disturbance observer is introduced and included...
Adapting the CZ series launch vehicle as research object, and according to multi-scale Modeling, the simulation model of the Launch Vehicle guidance subsystem was established and simulated in Matlab/Simulink. A series of relatively independent mathematical model such as rocket instantaneous velocity, instantaneous displacement, earth gravity acceleration, navigation guidance equation etc were built...
The permanent magnet synchronous motor (PMSM) is a dynamic, multi-variable and non-linear system, and the conventional PID control method is very difficult to meet the requirement for high accuracy control. This paper presents an approach of control for PMSM servo system using fuzzy radius basis function (f-RBF) neural network which has the advantages of strong adaptive ability and nonlinear approximation...
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