Title :
Phase modulation of robust variable structure control for nonlinear aircraft
Author :
Tang, Yimeng ; Patton, Ron J.
Author_Institution :
Dept. of Eng., Univ. of Hull, Kingston upon Hull, UK
Abstract :
This paper concerns phase plane description and modulation of the performance for a nonlinear Unmanned Aerial Vehicle (UAV) system based on Variable Structure Control (VSC) by reaching sliding mode. The novelty lies in the application of a phase analysis approach to achieve a robust controller for a complex nonlinear system. The aircraft dynamics are introduced and approximately linearized and decoupled on-line using feedback linearization theory. Then the sliding mode control (SMC) scheme is accomplished for the decoupled sub-channels. The phase modulation method is applied for theoretically ensuring further robustness. The simulation results demonstrate the efficiency and effectiveness of the proposed strategy.
Keywords :
aircraft control; autonomous aerial vehicles; feedback; nonlinear control systems; phase modulation; robust control; variable structure systems; UAV system; aircraft dynamics; complex nonlinear system; feedback linearization theory; nonlinear aircraft; nonlinear unmanned aerial vehicle; phase analysis; phase modulation; phase plane description; robust controller; robust variable structure control; sliding mode control; Aerospace control; Aircraft; Phase modulation; Robustness; Switches; Vectors; feedback linearization; nonlinear aircraft; phase modulation; robust controller; sliding mode;
Conference_Titel :
Control (CONTROL), 2012 UKACC International Conference on
Conference_Location :
Cardiff
Print_ISBN :
978-1-4673-1559-3
Electronic_ISBN :
978-1-4673-1558-6
DOI :
10.1109/CONTROL.2012.6334625
