Composite robust control of uncertain nonlinear systems with unmatched disturbances using policy iteration

QY Fan, H Jiang, X Song, B Xu - ISA transactions, 2023 - Elsevier
In this paper, the composite robust control problem of uncertain nonlinear systems with
unmatched disturbances is investigated. In order to improve the robust control performance …

[HTML][HTML] Observer-based robust high-order fully actuated attitude autopilot design for spinning glide-guided projectiles

W Wang, Y Wang, S Chen, Y Guo, Z Shi - Defence Technology, 2024 - Elsevier
This paper investigates the design of an attitude autopilot for a dual-channel controlled
spinning glide-guided projectile (SGGP), addressing model uncertainties and external …

Neuroadaptive high-order fully-actuated system approach for roll autopilot with unknown uncertainties

W Wang, S Chen, Z Shi, Y Wang - Aerospace Science and Technology, 2024 - Elsevier
In this paper, a neuroadaptive high-order fully-actuated system approach control scheme
incorporating the disturbance observer technique is proposed for the missile roll autopilot …

[HTML][HTML] Parameter Identification of Pilot Model and Stability Analysis of Human-in-Loop Image Seeker

Y Zhang, T Li, Y Li, G Wang - Aerospace, 2023 - mdpi.com
In the human-in-loop (HIL) guidance mode, a pilot quickly identifies and flexibly locks on to a
target through a real-time image signal transmitted by the aircraft. Then, the line-of-sight …

Three-Dimensional Composite Approach Angle Constrained Guidance Law with Actuator Lag Consideration

Y Wang, Q Zeng, Z Xu, B Li, W Wang - Journal of Aerospace …, 2024 - ascelibrary.org
This paper considers the problem of unmanned aerial vehicle (UAV) aerial collision net
recovery in a three-dimensional non-decoupling environment and approach angle …

Fuzzy disturbance observer design for a class of nonlinear siso systems

Q Hou, L Ma, H Wang, S Ding - International Journal of Fuzzy Systems, 2022 - Springer
In this paper, a novel fuzzy disturbance observer (DOB) is designed for a class of nonlinear
single-input–single-output (SISO) systems. The main feature of the proposed DOB lies in …

Stability limits for the velocity orientation autopilot of rolling missiles

S Hu, J Wang, Y Wang, S Tian - IEEE Access, 2021 - ieeexplore.ieee.org
In this paper, we derive the sufficient and necessary stability conditions for rolling missiles
with velocity orientation autopilot. For the mathematical derivation, linear time-invariant …

Robust composite nonlinear feedback control for spacecraft rendezvous systems under parameter uncertainty, external disturbance, and input saturation

H Namdari, F Allahverdizadeh… - Proceedings of the …, 2020 - journals.sagepub.com
This paper presents a new robust composite nonlinear feedback control law for accurate,
smooth, and fast regulation in the presence of parameter uncertainties, external …

Coning motion stability and decoupling methods analysis of spinning missiles with angle‐of‐attack feedback autopilot

Y Wang, W Wang, Y Ji, J Zhang… - Asian Journal of …, 2023 - Wiley Online Library
The angle‐of‐attack (AOA) three‐loop feedback autopilot is an improved three‐loop
autopilot that has been widely employed in missile control systems. For spinning missiles …

Roll autopilot design of a tactical missile using higher order sliding mode technique

RB Sankar, B Bandyopadhyay… - 2016 Indian Control …, 2016 - ieeexplore.ieee.org
Tactical missiles are used against various aerial/ground targets which can be stationary or
maneuvering. Tactical missiles should have highly efficient control scheme in order to …