Attitude and Altitude Stabilization of Fixed Wing VTOL Unmanned Air Vehicle

Attitude and position control of a quadrotor using on board vision system Tüzel, Şerafettin; Yaman, Ulaş; Department of Mechanical Engineering (2019) In this thesis, localization and trajectory following of a quadrotor is obtained with attitude and position control along with the help of an onboard monocular camera. Two control strategies are adopted for this aim, which are well-known PID and nonlinear backstepping controllers. For the PID algorithm, a cascaded structure is preferred so that angular rates are regulated as the inner loop of the attitude controller. At the outer loop of this system, angles are stabilized by producing rate references to the...
Attitude and Altitude Tracking of Hexacopter via LQR with Integral Action Suicmez, Emre Can; Kutay, Ali Türker (2017-06-16) A controller is designed for hexacopter platform to achieve accurate tracking of altitude and attitude commands under the influence of severe disturbances. The main aim is designing a controller that can be tuned easily to satisfy desired performance requirements. For this purpose, multi-variable control method LQR is combined with PID structure which provides valuable physical insight in tuning process. Integral states are added to the system dynamics to have PID structure. Command generator is used to hav...
Attitude and Orbit Control of a Solar Sail Spacecraft for Responsive Operational Concept Polat, Halis Can; Tekinalp, Ozan; Department of Aerospace Engineering (2021-6-15) Utilization of the propellant-free thrust capability of Solar Sail Spacecraft (SSS) is addressed. For this purpose, an elliptical orbit with a very low perigee altitude and an apogee altitude high enough to have solar sail acceleration is proposed for Earth observation mission. In the mission part, regional observation tasks are carried out that take place in very Low Earth Orbit region. The orbit maintenance and control are handled in the high altitude regions. The baseline SSS design is accomplished and p...
Attitude estimation and magnetometer calibration using reconfigurable TRIAD plus filtering approach Söken, Halil Ersin (Elsevier BV, 2020-04-01) This paper proposes using TRIAD and Unscented Kalman Filter (UKF) algorithms in a sequential architecture as a part of a small satellite attitude estimation algorithm. This TRIAD+UKF approach can both provide accurate attitude estimates for the satellite and calibrate the magnetometers in real-time. A complete calibration model for the magnetometers, considering bias, scale factor, soft iron and nonorthogonality errors, is assumed. In the algorithm's first stage, the TRIAD uses the available vector measurem...
Thrust vector control of a rocket vehicle associated with aerodynamic control Kaya, Cumhur Yalçın; Özgören, M. Kemal; Department of Mechanical Engineering (1989)

Citation Formats

A. Güçlü, D. F. Kurtuluş, and K. B. Arıkan, “Attitude and Altitude Stabilization of Fixed Wing VTOL Unmanned Air Vehicle,” 2016, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/37226.