Communications: directive radio wave systems and devices (e.g. – Directive – Including a satellite
Reexamination Certificate
2009-01-22
2011-11-01
Tarcza, Thomas (Department: 3662)
Communications: directive radio wave systems and devices (e.g.,
Directive
Including a satellite
Reexamination Certificate
active
08049665
ABSTRACT:
A method for selecting a local C/A code for GPS signal processing includes performing an autocorrelation of a received GPS C/A code with a plurality of versions of a local coarse acquisition (C/A) code. In such an autocorrelation, each local C/A code version is autocorrelated with the received GPS C/A code over a plurality of autocorrelation periods, and an autocorrelation result is generated for each autocorrelation period. A maximum autocorrelation result and a minimum autocorrelation result are determined from among the autocorrelation results of each C/A code version. Next, one of the local C/A code versions is selected based upon that version's maximum autocorrelation result and the minimum autocorrelation result.
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Kang Inchul
Nguyen Nga X
Perry Clifford B.
Tarcza Thomas
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