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Estimating Accurate Relative Spacecraft Angular Position from DSN VLBI Phases Using X-Band Telemetry or DOR TonesAt present spacecraft angular position with Deep Space Network (DSN) is determined using group delay estimates from very long baseline interferometer (VLBI) phase measurements employing differential one way ranging (DOR) tones. As an alternative to this approach, we propose estimating position of a spacecraft to half a fringe cycle accuracy using time variations between measured and calculated phases as the Earth rotates using DSN VLBI baseline(s). Combining fringe location of the target with the phase allows high accuracy for spacecraft angular position estimate. This can be achieved using telemetry signals of at least 4-8 MSamples/sec data rate or DOR tones.
Document ID
20100031262
Acquisition Source
Jet Propulsion Laboratory
Document Type
Conference Paper
External Source(s)
Authors
Bagri, Durgadas S.
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Majid, Walid
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Date Acquired
August 25, 2013
Publication Date
March 7, 2009
Publication Information
ISBN: 978-1-4244-2622
Subject Category
Space Communications, Spacecraft Communications, Command And Tracking
Report/Patent Number
IEEEAC Paper 1557
Meeting Information
Meeting: IEEE Aerospace Conference
Location: Big Sky, MO
Country: United States
Start Date: January 1, 2008
Sponsors: Institute of Electrical and Electronics Engineers
Distribution Limits
Public
Copyright
Other
Keywords
x-band telemetry
DOR tones
spacecraft angular position
Deep Space Network (DSN)

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