In this paper, an impact-angle-constrained nonsingular fast terminal sliding mode control (NFTSMC) based guidance law with fixed-time disturbance observer (FxTDO) is proposed in the presence of uncertain disturbances. Without the requirement of the upper bound of the disturbance and its derivative, a bi-limit weighted fixed-time disturbance observer is used to estimate the unknown lumped disturbance. In order to attenuate the chattering and ensure convergence within finite time, a nonsingular terminal sliding mode guidance method is adopted with the disturbance estimation. Numerical simulation results with some comparisons demonstrate the effectiveness of the proposed method.
Fixed-Time Disturbance Observer Based Nonsingular Fast Terminal Sliding Mode Guidance with Impact Angle Constraint
01.08.2018
683750 byte
Aufsatz (Konferenz)
Elektronische Ressource
Englisch
Nonsingular Terminal Sliding Mode Guidance with Impact Angle Constraints
Online Contents | 2014
|DOAJ | 2020
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