Integrated INS/GPS/GLONASS navigation aid for manned space flightWhile both the U.S. Navstar GPS and the Soviet GLONASS will furnish users consistent global coverage for position fixes, neither system is certifiable as a sole-source navigation system because not enough of its satellites will be in view of vehicular receivers at one time to satisfy the redundancy and system-monitoring standards of the FAA and ICAO. A hybrid receiver employing combined signals from both satellite fleets will overcome this problem. While recent test flight results confirm the feasibility of precision landing approaches conducted by these means, issues bearing on calibration, standardization, and organization remain to be resolved politically and diplomatically.
Document ID
19920034021
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Anderman, Alfred (Rockwell International Corp. Space Systems Div., Downey, CA, United States)
Date Acquired
August 15, 2013
Publication Date
January 1, 1991
Subject Category
Space Communications, Spacecraft Communications, Command And Tracking