GPS Composite Clock Analysis
Author
Source
International Journal of Navigation and Observation
Issue
Vol. 2008, Issue 2008 (31 Dec. 2008), pp.1-8, 8 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2008-01-03
Country of Publication
Egypt
No. of Pages
8
Main Subjects
Abstract EN
The GPS composite clock defines GPS time, the timescale used today in GPS operations.
GPS time is illuminated by examination of its role in the complete estimation and control problem relative to UTC/TAI.
The phase of each GPS clock is unobservable from GPS pseudorange measurements, and the mean phase of the GPS clock ensemble (GPS time) is unobservable.
A new and useful observability definition is presented, together with new observability theorems, to demonstrate explicitly that GPS time is unobservable.
Simulated GPS clock phase and frequency deviations, and simulated GPS pseudorange measurements, are used to understand GPS time in terms of Kalman filter estimation errors.
American Psychological Association (APA)
Wright, James R.. 2008. GPS Composite Clock Analysis. International Journal of Navigation and Observation،Vol. 2008, no. 2008, pp.1-8.
https://search.emarefa.net/detail/BIM-458351
Modern Language Association (MLA)
Wright, James R.. GPS Composite Clock Analysis. International Journal of Navigation and Observation No. 2008 (2008), pp.1-8.
https://search.emarefa.net/detail/BIM-458351
American Medical Association (AMA)
Wright, James R.. GPS Composite Clock Analysis. International Journal of Navigation and Observation. 2008. Vol. 2008, no. 2008, pp.1-8.
https://search.emarefa.net/detail/BIM-458351
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-458351