Multivariable uniform finite-time output feedback reentry attitude control for RLV with mismatched disturbance |
| |
| Authors: | Bailing Tian Hanchen Lu Zongyu Zuo Qun Zong |
| |
| Institution: | 1. School of Electrical and Information Engineering, Tianjin University, Tianjin 300072, China;2. School of Automation Science and Electrical Engineering, Beihang University, Beijing 100191, China |
| |
| Abstract: | A continuous multivariable uniform finite-time output feedback reentry attitude control scheme is developed for Reusable Launch Vehicle (RLV) with both matched and mismatched disturbances. A novel finite-time controller is derived using the bi-limit homogeneous technique, which ensures that the attitude tracking can be achieved in a uniformly bounded convergence time from any initial states. A multivariable uniform finite-time observer is designed based on an arbitrary order robust sliding mode differentiator to estimate the unknown states and the external disturbances, simultaneously. Then, an output feedback control scheme is established through the combination of the developed controller and the observer. A rigorous proof of the uniform finite-time stability of the closed-loop system is presented using Lyapunov and homogeneous techniques. Finally, numerical simulation is provided to demonstrate the efficiency of the proposed scheme. |
| |
| Keywords: | Corresponding author |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
