Abstract Linear extended state observer (linear observer, LESO) is the core component of linear active disturbance rejection control control, LADRC), and its performance critical to effect. The ADRC applied speed loop permanent magnet synchronous motor system with a double closed-loop strategy. By adding scale factor utilization efficiency observed signal observation improved. On this basis, hy...

Hydrodynamics of the manipulator mounted on the vehicle are poorly known and time-varying. Furthermore, its motion is disturbed by the vehicle motion and current. This paper presents a non-regressor based adaptive control scheme with a disturbance observer for tracking the trajectory of underwater mobile platform-mounted manipulators. The presented control system does not require any informatio...

This paper investigates the bipartite consensus of linear discrete-time multiagent systems (MASs) with exogenous disturbances. A disturbance-observer- (DTDO-) based technology is involved for attenuating And both state feedback and observer-based output protocols are proposed by using DTDO method. It turned out that can be realized under given if topology connected structurally balanced. Finall...

Severe environment in deep ocean affects operating reliability and security of coring drill. Adopting heave motion signal measured by accelerometer to confirm heave compensation of coring drill, the compensation control method is proposed using disturbance observer to restrain the disturbance. Then, the disturbance observer is designed. The heave motion simulation for coring drill is done with ...

To improve the dynamic property and disturbance suppression ability of an electro-optical tracking system, this paper presents a disturbance-observer-based LQR control method. The robust controller is composed three parts: one controller, reference model other compensatory designed with output observer. uncertainty disturbances are considered in design. By Lyapunov stability theory linear matri...

this paper proposes a new method of gain scheduling control design for a nonlinear system which is described as linear parameter varying form. a performance measure based on linear matrix inequality is introduced. to consider stability and performance measures in design process, the h∞ loop-shaping method is used to design the local controllers, which can be described as state feedback observer...

Polycyclic aromatic hydrocarbon (PAH) pollutants originating from oil spills and wood and fuel combustion are pollutants which are among the major threats to mangrove ecosystems. In this study, the composition and relative abundance in the sediment bacterial communities of naphthalene dioxygenase (ndo) genes which are important for bacterial adaptation to environmental PAH contamination were in...