A L1 Adaptive Control Scheme for UAV Carrier Landing Using Nonlinear Dynamic Inversion. (2nd May 2019)

• Record Type: Journal Article
• Authors: Lu, Ke; Liu, Chunsheng
• Other Names: Cavalieri André Academic Editor.
• Is Part Of: International journal of aerospace engineering. Volume 2019(2019)
• Publication Date: 2019-05-02
• Subjects: Aerospace engineering -- Periodicals; 629.105
• DOI: 10.1155/2019/6917393
• Languages: English
• ISSNs: 1687-5966

Abstract

Abstract : This paper presents a L 1 adaptive controller augmenting a dynamic inversion controller for UAV (unmanned aerial vehicle) carrier landing. A three axis and a power compensator NDI (nonlinear dynamic inversion) controller serves as the baseline controller for this architecture. The inner-loop command inputs are roll-rate, pitch-rate, yaw-rate, and thrust commands. The outer-loop command inputs come from the guidance law to correct the glide slope. However, imperfect model inversion and nonaccurate aerodynamic data may cause degradation of performance and may lead to the failure of the carrier landing. The L 1 adaptive controller is designed as augmentation controller to account for matched and unmatched system uncertainties. The performance of the controller is examined through a Monte Carlo simulation which shows the effectiveness of the developed L 1 adaptive control scheme based on nonlinear dynamic inversion.