Adaptive accurate tracking control of HFVs in the presence of dead-zone and hysteresis input nonlinearities

A novel accurate tracking controller is developed for the longitudinal dynamics of Hypersonic Flight Vehicles (HFVs) in presence large model uncertainties, external disturbances and actuator nonlinearities. Distinct from state-of-the-art, besides being continuity, no restrictive conditions have been imposed on HFVs dynamics. The system uncertainties are skillfully handled by seen as bounded “disturbance terms”. In addition, means back-stepping adaptive technique, (i.e. errors converge to zero time approaches infinity) rather than residual sets) has achieved. What’s more, problems subject dead-zone hysteresis discussed, respectively. Then, all signals closed-loop verified be Semi-Global Uniformly Ultimate Boundness (SGUUB). Finally, efficacy superiority control strategy confirmed simulation results.