System for demodulating navigation bits from satellite signals
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United States of America Patent
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Apr 3, 2012
Grant Date -
Dec 30, 2010
app pub date -
Dec 30, 2009
filing date -
Jun 30, 2009
priority date (Note) -
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Abstract
A signal processing system for demodulating navigation bits from a satellite signal is disclosed herein. The signal processing system includes a digital baseband processor for determining a boundary between two navigation bits in the navigation bits according to a first plurality of coarse acquisition (C/A) codes captured from the satellite signals, storing the first plurality of C/A codes, and demodulating a second plurality of C/A codes captured after determining the boundary to recover a first series of the navigation bits. The signal processing system further includes a complementary demodulating unit coupled to the digital baseband processor for demodulating the first plurality of C/A codes to recover a second series of the navigation bits.
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