By Topic

The Design, Development, and Flight Testing of a Modern-Control-Designed Autoland System

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$33 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

1 Author(s)
Richard M. Hueschen ; NASA Langley Research Center, Hampton, VA 23665

This paper discusses the design, development, and flight test results of a full-state feedback modern-controls-designed autoland system--the Digital Integrated Automatic Landing System (DIALS). The lateral and longitudinal control laws were designed by formulating a linear quadratic regulator with disturbances problem. Although the designs were independent of each other, in implementation cross-coupling of the lateral and longitudinal variables does occur. A brief discussion of the control modes--localizer capture, localizer track, decrab, glideslope capture, glideslope track, and flare--and the modifications made to the basic design during the simulation phase to achieve desired performance is given. Some of the efforts required to implement the system in the flight computers and some problems encountered in the ground hardware simulation checkout are discussed. Finally, flight test data is presented for this system which performed 10 "hands off" automatic landings. The flight test data includes the performance of the aircraft in mild, gusty, and wind shear conditions.

Published in:

American Control Conference, 1985

Date of Conference:

19-21 June 1985