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Development of a digital integrated automatic landing system /DIALS/ for steep approach and landingThis paper describes the development of a three-dimensional digital integrated automatic landing system (DIALS) for a small commercial jet transport. The system uses the Microwave Landing System (MLS), body-mounted accelerometers, as well as on-board sensors usually available on commercial aircraft, but does not require inertial platforms. The system development uses modern digital control techniques. The phases of flight considered are the localizer and glideslope capture, which may be performed simultaneously or sequentially, localizer and glideslope track (hold), crab/decrab, and flare to touchdown. The system captures, tracks and flares from steep glideslopes (2.5 - 5.5 deg) selected prior to glideslope capture. The results of a nonlinear simulation are presented.
Document ID
19820036762
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Halyo, N.
(Information and Control Systems, Inc. Hampton, VA, United States)
Hueschen, R. M.
(NASA Langley Research Center Hampton, VA, United States)
Date Acquired
August 10, 2013
Publication Date
June 1, 1981
Subject Category
Aircraft Communications And Navigation
Meeting Information
Meeting: Joint Automatic Control Conference, University of Virginia
Location: Charlottesville, VA
Start Date: June 17, 1981
End Date: June 19, 1981
Sponsors: AIChE, ASME, IEEE, and ISA,
Accession Number
82A20297
Funding Number(s)
CONTRACT_GRANT: NAS1-15116
CONTRACT_GRANT: NAS1-12754
Distribution Limits
Public
Copyright
Other

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