Download or read book Automatic Landing Systems ALS written by and published by . This book was released on 1971 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Automatic Landing Systems ALS written by United States. Federal Aviation Administration and published by . This book was released on 1971 with total page 7 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Automatic Landing Control Using H infinity Control and Stable Inversion written by Jun Che and published by . This book was released on 2001 with total page 166 pages. Available in PDF, EPUB and Kindle. Book excerpt: The design of an automatic landing system (ALS) is a challenging task. It is both a robust and a tracking control problem. In this thesis, a method combining H[Infinity] robust control and stable inversion is employed to develop controllers for an automatic landing system. We adopt the linearized longitudinal model of a Boeing 747 commercial airplane to verify this method. The control actuators, wind gust, and wind shear models are also established to simulate the landing process. H[Infinity] control is a robust control method. It can optimize the system performance and provide robust stability against uncertainties in the plant. The stable inversion is a precision tracking approach. We combine these two methods together to satisfy both robust and exact tracking requirements for the automatic landing system. Based on the stable inversion technique, the desired altitude and airspeed trajectories are also designed. The numerical simulation results show that the automatic landing system can meet FAA (Federal Aviation Administration) requirements for Category III precision approach landing. As expected, the integrated system can achieve accurate tracking, in the presence of measurement noise, wind gust, and wind shear with low intensity. Compared with existing approaches in automatic landing systems, the method used in this thesis can achieve higher precision. Finally, this method is particularly well suited for automatic landing systems using Global Positioning System.
Download or read book Automatic Landing System Study written by Bendix Corporation. Bendix Radio Division and published by . This book was released on 1962 with total page 206 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Preliminary Study of a Possible Automatic Landing System written by Windsor L. Sherman and published by . This book was released on 1974 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Aircraft Landing Control Using the H inf Control and the Dynamic Inversion Technique written by Romulus Lungu and published by . This book was released on 2016 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The chapter presents the automatic control of aircraft during landing, taking into account the sensor errors and the wind shears. Both planes-longitudinal and lateral-directional-are treated; the new obtained automatic landing system (ALS) will consists of two subsystems-the first one controls aircraft motion in longitudinal plane, while the second one is for the control of aircraft motion in lateral-directional plane. These two systems can be treated separately, but in the same time, these can be put together to control all the parameters which interfere in the dynamics of aircraft landing. The two new ALSs are designed by using the H-inf control, the dynamic inversion, optimal observers, and reference models. To validate the new obtained ALS, one uses the dynamics associated to the landing of a Boeing 747, software implements the theoretical results and analyzes the accuracy of the results and the precision standards' achievement with respect to the requirements of the Federal Aviation Administration (FAA).
Download or read book Generalization and Refinement of an Automatic Landing System Capable of Curved Trajectories written by Windsor L. Sherman and published by . This book was released on 1976 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Development of an Autoland System for General Aviation Aircraft written by Diana Siegel and published by . This book was released on 2012 with total page 208 pages. Available in PDF, EPUB and Kindle. Book excerpt: Accidents due to engine failure, pilot disorientation or pilot incapacitation occur far more frequently in general aviation than in commercial aviation, yet general aviation aircraft are equipped with less safety-enhancing features than commercial aircraft. This thesis presents the design of an emergency autoland system that includes automatic landing site selection, guidance to the selected landing site and guidance along the final approach, in addition to the automatic landing capability provided by conventional autoland systems. The proposed system builds on the capability of a general aviation autopilot, flight management system and GPS/WAAS augmented, integrated navigation system. The system provides this automatic landing capability without the use of automatic throttle control and without the use of a radar altimeter, which are essential to conventional autoland systems, but are typically lacking on general aviation aircraft. The design addresses the challenge of no automatic throttle control by utilizing only two simple power settings: cruise power and zero power. The lack of radar altimeter is addressed by appropriate flare planning and placement of the target touchdown point. The approach from the point of autoland initiation, to the approach fix at the the landing site, is performed at cruise power, provided that power is available. The final approach from the approach fix to touchdown, is performed at zero power. Control of the touchdown point location during the final approach is achieved through adjustment of the length of the trajectory, whenever the aircraft's glide performance deviates from the expected performance. The aircraft's glide performance is measured online as the aircraft tracks the planned trajectory. The performance of the final design is evaluated in simulation in terms of touchdown point dispersion, sink rate and attitude on touchdown.
Download or read book Study of an Automatic Landing System for Aircraft written by Charles Warren Merriam and published by . This book was released on 1955 with total page 58 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book An Observer based Aircraft Automatic Landing System written by Robert Fulton Wilson and published by . This book was released on 1981 with total page 234 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book An Analog Study of an Airborne Automatic Landing approach System written by James J. Adams and published by . This book was released on 1959 with total page 62 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Flight Tests of the Digital Integrated Automatic Landing System DIALS written by Nesim Halyo and published by . This book was released on 1984 with total page 130 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book NASA Technical Paper written by and published by . This book was released on 1983 with total page 910 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book An Automatic Landing System for Aircraft written by Charles Wolcott Merriam and published by . This book was released on 1955 with total page 202 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Analog Computer Study of an Automatic Landing System for Aircraft written by William Perry Boyd and published by . This book was released on 1963 with total page 174 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Implementation and Flight Tests for the Digital Integrated Automatic Landing System DIALS Part 2 Complete Set of Flight Data written by and published by . This book was released on 1986 with total page 334 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Design of Automatic Landing Systems Using Mixed H2 Hoo Control written by Shyh-Pyng Shue and published by . This book was released on 1998 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
