Document Type : Original Article
Authors
1 Department of Aerospace engineering KNTU.ac.ir
2 Department of Aerospace Engineering. KNTU.ac.ir
3 Electrical Engineering Department ' Qazvin Islamic Azad University
4 Aerospace Department Malek-Ashtar university of Technology
Abstract
The design of a ground collision avoidance system for an airplane based on optimal control theory is presented in this paper. A control system is designed by linear quadratic tracker to track desired Euler angles of airplane. The system independent of 3 dimensional maps, works by using a forward looking camera. In addition, the obstacle is analyzed by digital image processing techniques. An optimal flight control system based on discrete-time linear quadratic tracker is designed, to fly over or pass obstacles like mountains automatically.
Keywords
- Automatic Flight Control System
- Ground Collision Avoidance System
- Linear Quadratic Tracker
- Digital Image Processing
- Optimal control system
Main Subjects
Hewitt C., Hickey A.J, and Boyes. J.D “A Ground and Obstacle Collision Avoidance Technique (GOCAT)” IEEE AES Magazine, August 1991.
Barfield Finley, Probert Judith and Browning Duke “All Terrain Ground Collision Avoidance and Maneuvering Terrain Following for Automated Low Level Night Attack” IEEE, March 1993.
Gregory W. Bice, “Development of an Automatic Ground Collision Avoidance System Using a Digital Terrain Database”, Air Force Institute of Technology, 1990.13.
- Ackermann, “High Quality Digital Terrain Models”, Earswl Advances in Remote Sensing Vol. 1 NO. 3 – VII, 1992, Stuttgart
Zardashti Reza, “Optimal and Constrained Terrain FollowingThreat Avoidance Guidance using Nonlinear Approach”, dissertation, K.N. toosi University of technology, 2016.
Piotr Maslowski, “Automatic Predictive Control for Terrain-Following Flight”, Transactions of the Institute of Aviation, pp. 94-106, 2011.
Clark Borst, “Ecological Approach to Pilot Terrain Awareness”, Technische Universitaet, 2009.
Yoshitaka Murata, Yoshihiro Mitani, “A Fast and Shorter Path Finding Method for Maze Images by Image Processing Techniques and Graph Theory”, Journal of Image and Graphics (Engineering and Technology Publishing), Volume 2, No.1, June, 2014
Tamas Zsedrovits, Balint Vanek, Computer and Automation Research Institute of the Hungarian Academy of Sciences, “Collision Avoidance for UAV using Visual Detection”, IEEE, 2011
Carlos Livadas, John Lygeros, “High-Level Modeling and Analysis of the Traffic Alert and Collision Avoidance System (TCAS)”, IEEE, VOL. 88, NO., July 2000
Barfield Finley, Probert Judith and Browning Duke, “All Terrain Ground Collision Avoidance and Maneuvering Terrain Following for Automated Low Level Night Attack”, IEEE, March 1993.
Rafael C. Gonzalez, “Digital image processing using MATLAB,” 2ndedition”, University of Tennessee, 2009.
Mojarrab Hossein, “Autopilot design for a General Aviation Airplane crossing ground Terrains”, graduate thesis, K.N. toosi University of technology, 2016.
Jan Roskam, “Airplane Flight Dynamics and Automatic Flight Controls, Part I & II”, Lawrence, 1998.
Desineni Subbaram Naidu; Optimal Control Systems, Richard C.Dorf Series Editor University of California, 2003.
Robert F. Stengel, “Flight Dynamics”, Princeton University press, Princeton and Oxford; 2004.
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