Flight-test evaluation of civil helicopter terminal approach operations using differential GPSA civil code differential Global Positioning System (DGPS) has been developed and flight-tested by the NASA Ames Research Center. The system was used to evaluate the performance of the DGPS for support of helicopter terminal approach operations. The airborne component of the DGPS was installed in a NASA helicopter. The ground-reference component was installed in a mobile van and equipped with a real-time VHF telemetry data link to transmit correction information to the aircraft system. An extensive series of tests was conducted to evaluate the performance of the system for several different configurations of the airborne navigation filter. This paper will describe the systems, the results of the flight tests, and the results of the posttest analysis.
Document ID
19890065223
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Edwards, F. G. (NASA Ames Research Center Moffett Field, CA, United States)
Hegarty, D. M. (NASA Ames Research Center Moffett Field, CA, United States)
Date Acquired
August 14, 2013
Publication Date
January 1, 1989
Subject Category
Aircraft Communications And Navigation
Report/Patent Number
AIAA PAPER 89-3635
Meeting Information
Meeting: AIAA Guidance, Navigation and Control Conference