Disturbances analysis for a hypersonic vehicle based on adaptive fuzzy control

There are many different disturbances for hypersonic air vehicles due to complex flight environment and flight conditions of the high altitudes and Mach numbers. This paper analyses many kinds of disturbances such as aerodynamic interference, measurement noise, elevator disturbance and parametric uncertainty based on the fuzzy adaptive controller. Simulation results show that these disturbances obviously impact the flight tracking of height and velocity. However, the fuzzy adaptive controller is also able to effectively overcome these problems, and it has fine tracking performance and robustness.