NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
An optimal GPS data processing techniqueA formula is derived to optimally combine dual-frequency GPS (Global Positioning System) pseudorange and carrier phase data streams into a single equivalent data stream, reducing the data volume and computing time in the filtering process for parameter estimation by a factor of four. The resulting single data stream is that of carrier phase measurements with both data noise and bias uncertainty strictly defined. With this analytical formula the single stream of equivalent GPS measurements can be efficiently formed by simple numerical calculations without any degradation in data strength. The formulation for the optimally combined GPS data and their covariances are given in closed form. Carrier phase ambiguity resolution, when feasible, is improved due to the preservation of the full data strength with the optimal data combining process.
Document ID
19930026983
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Wu, S. C.
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Melbourne, W. G.
(JPL Pasadena, CA, United States)
Date Acquired
August 15, 2013
Publication Date
January 1, 1992
Publication Information
Publication: In: IEEE PLANS '92 - Position Location and Navigation Symposium, Monterey, CA, Mar. 24-27, 1992, Record (A93-10976 01-04)
Publisher: Institute of Electrical and Electronics Engineers, Inc.
Subject Category
Communications And Radar
Accession Number
93A10980
Distribution Limits
Public
Copyright
Other

Available Downloads

There are no available downloads for this record.
No Preview Available