Carrier-based aircraft exhibit highly complex coupling characteristics across control channels.To address the control coupling issues encountered during carrier-based aircraft landing,as well as the undershoot phenome...Carrier-based aircraft exhibit highly complex coupling characteristics across control channels.To address the control coupling issues encountered during carrier-based aircraft landing,as well as the undershoot phenomenon observed in trajectory adjustment,this paper proposes a direct longitudinal force control method based on the vertical translation mode.The proposed method enables decoupled control of altitude,velocity,and pitch channels while maintaining the aircraft’s attitude stability.This approach simplifies the control logic and eliminates the undershoot phenomenon in trajectory adjustment.Furthermore,given the difficulty in acquiring the relative position between the aircraft and the carrier,a Kalman filter-based multi-source signal fusion method is introduced,which effectively suppresses the noise interference in radar signal acquisition by the carrier-based aircraft.Simulation results demonstrate that the proposed composite control method enables rapid trajectory tracking and enhances landing accuracy.展开更多
This paper proposes a trajectory tracking control scheme for vertical/short take-off and landing(V/STOL)vehicles.Owing to their high number of controllable degrees of freedom and strong nonlinearity,the design of flig...This paper proposes a trajectory tracking control scheme for vertical/short take-off and landing(V/STOL)vehicles.Owing to their high number of controllable degrees of freedom and strong nonlinearity,the design of flight control systems for such vehicles presents considerable challenges,particularly in developing controllers capable of accurately tracking specified trajectories.Building on existing control strategies for various vehicle types,this study introduces an extended control framework tailored for V/STOL systems.The proposed scheme consists of two nested loops:an outer position control loop and an inner attitude control loop.The position loop employs a proportional-integral-derivative(PID)control algorithm,whereas the attitude loop utilizes an anti-saturation integral sliding mode control algorithm.This approach effectively alleviates the integral oversaturation issue inherent in conventional sliding mode methods and suppresses buffeting through a boundary layer technique.Simulation results demonstrate the efficacy of the proposed control strategy.展开更多
基金supported in part by the National Natural Science Foundation of China,grant numbers 62573253 and 62203259the Young Elite Scientists Sponsorship Programby CAST,grant number 2023QNRC001+1 种基金the Aeronautical Science Foundation of China,grant number 20240058058001the Foundation of the National Key Laboratory of Aircraft Configuration Design,grant number ZZKY-202505.
文摘Carrier-based aircraft exhibit highly complex coupling characteristics across control channels.To address the control coupling issues encountered during carrier-based aircraft landing,as well as the undershoot phenomenon observed in trajectory adjustment,this paper proposes a direct longitudinal force control method based on the vertical translation mode.The proposed method enables decoupled control of altitude,velocity,and pitch channels while maintaining the aircraft’s attitude stability.This approach simplifies the control logic and eliminates the undershoot phenomenon in trajectory adjustment.Furthermore,given the difficulty in acquiring the relative position between the aircraft and the carrier,a Kalman filter-based multi-source signal fusion method is introduced,which effectively suppresses the noise interference in radar signal acquisition by the carrier-based aircraft.Simulation results demonstrate that the proposed composite control method enables rapid trajectory tracking and enhances landing accuracy.
基金supported in part by National Key Laboratory Foundation(No.STSL2024-A-04(C))。
文摘This paper proposes a trajectory tracking control scheme for vertical/short take-off and landing(V/STOL)vehicles.Owing to their high number of controllable degrees of freedom and strong nonlinearity,the design of flight control systems for such vehicles presents considerable challenges,particularly in developing controllers capable of accurately tracking specified trajectories.Building on existing control strategies for various vehicle types,this study introduces an extended control framework tailored for V/STOL systems.The proposed scheme consists of two nested loops:an outer position control loop and an inner attitude control loop.The position loop employs a proportional-integral-derivative(PID)control algorithm,whereas the attitude loop utilizes an anti-saturation integral sliding mode control algorithm.This approach effectively alleviates the integral oversaturation issue inherent in conventional sliding mode methods and suppresses buffeting through a boundary layer technique.Simulation results demonstrate the efficacy of the proposed control strategy.
