@inproceedings { , title = {Attitude control of VTOL-UAVs.}, abstract = {This paper presents a novel control approach to obtain asymptotic attitude stability of a quadrotor as a representative of Planar Vertical Take Off and Landing (PVTOL) Unmanned Aerial Vehicles (UAVs). The considered quadrotor is a symmetric VTOL-UAV with four rigid mono-directional propellers, which has been modeled based on quaternion representation with taking Coriolis and gyroscopic torques into account. In the proposed approach, two nearly equivalent control laws (model independent as well as model dependent) have been used to obtain exponential stability of attitude angles and asymptotic stability of attitude angular velocity of the quadrotor UAV. The proposed approach also presents how the attitude parameters i.e. attitude angles and attitude angular velocity can be quickly regulated to their desired values as required.}, conference = {2012 UKACC international conference on control (CONTROL 2012)}, doi = {10.1109/CONTROL.2012.6334657}, isbn = {9781467315593}, note = {INFO COMPLETE (rec'd from contact 05.05.2020 GB) PERMISSION GRANTED (version = AAM ; embargo = 12 months ; licence = publisher's own ; https://conferences.ieeeauthorcenter.ieee.org/get-published/post-your-paper/ ; 05.05.2020 GB) DOCUMENT READY (rec'd AAM from contact 05.05.2020 GB) ADDITIONAL INFO: Maryam Heidarian © 2012 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.}, pages = {363-368}, publicationstatus = {Published}, publisher = {Institute of Electrical and Electronics Engineers (IEEE)}, url = {https://rgu-repository.worktribe.com/output/905822}, keyword = {Instrumentation & Sensors, Angular velocity, Torque, Rotors, Attitude control, Mathematical modeling, Quaternions}, year = {2012}, author = {Heidarian, Maryam and Memon, Attaullah Y.} }