Title :
GPS autoland considerations
Author :
Lopez, Alfred R.
Author_Institution :
ARL Associates Inc., Commack, NY, USA
fDate :
4/1/1993 12:00:00 AM
Abstract :
It is pointed out that fully automatic hands-off landing (autoland) capability for commercial aircraft, using the Global Positioning System (GPS), has not been demonstrated, and that ground multipath errors limit vertical positioning accuracy. An evolving integrated-sensor-based architecture for approach and landing, called the tunnel concept, is examined. The precise velocity information available could substantially reduce the vertical accuracy requirement for autoland.<>
Keywords :
aircraft instrumentation; radionavigation; satellite relay systems; GPS autoland; Global Positioning System; approach; automatic hands-off landing; commercial aircraft; ground multipath errors; integrated-sensor; tunnel concept; velocity information; vertical positioning accuracy; Aircraft manufacture; Aircraft navigation; Geometry; Global Positioning System; Multilevel systems; NASA; Reflection; Satellite navigation systems; Sensor systems; Spaceborne radar;
Journal_Title :
Aerospace and Electronic Systems Magazine, IEEE
