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Digital GPS-Signal Processor With P-Code/No-P-Code OptionSize, power, and cost reduced by exploiting commonality. Digital signal processor for Global Positioning System (GPS) receiver set to operate in "code" mode when P code known, or in "codeless" mode when P code not known. In codeless mode, processor performs full-quadrature processing, resulting in signal-to-noise ratio (SNR) 6 dB greater than SNR's of processors not performing at full quadrature.
Document ID
19940000252
Acquisition Source
Legacy CDMS
Document Type
Other - NASA Tech Brief
Authors
Thomas, J. Brooks (Caltech)
Srinivasan, Jeffrey M. (Caltech)
Date Acquired
August 16, 2013
Publication Date
May 1, 1994
Publication Information
Publication: NASA Tech Briefs
Volume: 18
Issue: 5
ISSN: 0145-319X
Subject Category
Electronic Systems
Report/Patent Number
NPO-18831
Accession Number
94B10252
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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