NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Collections About News Help Login
Back to Results
Interferometric tracking system for the tracking and data relay satelliteThis report documents construction and testing of the Interferometric Tracking System project developed under the NASA SBIR contract NAS5-30313. Manuals describing the software and hardware, respectively entitled: 'Field Station Guide to Operations' and 'Field Station Hardware Manual' are included as part of this final report. The objective of this contract was to design, build, and operate a system of three ground stations using Very Long Baseline Interferometry techniques to measure the TDRS orbit. The ground stations receive signals from normal satellite traffic, store these signals in co-located computers, and transmit the information via phone lines to a central processing site which correlates the signals to determine relative time delays. Measurements from another satellite besides TDRS are used to determine clock offsets. A series of such measurements will ultimately be employed to derive the orbital parameters, yielding positions accurate to within 50 meters or possibly better.
Document ID
19930020028
Acquisition Source
Legacy CDMS
Document Type
Contractor Report (CR)
Authors
Effland, John E. (Interferometrics, Inc. Vienna, VA, United States)
Knight, Curtis A. (Interferometrics, Inc. Vienna, VA, United States)
Webber, John C. (Interferometrics, Inc. Vienna, VA, United States)
Date Acquired
September 6, 2013
Publication Date
May 26, 1993
Subject Category
Communications And Radar
Report/Patent Number
NAS 1.26:193274
NASA-CR-193274
Accession Number
93N29217
Funding Number(s)
CONTRACT_GRANT: SBIR-07.03-8500
CONTRACT_GRANT: NAS5-30313
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

Related Records

There are no records associated with this record.
No Preview Available