Fast Acquisition, high sensitivity GPS receiver
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United States of America Patent
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Sep 11, 2001
Grant Date -
N/A
app pub date -
Feb 11, 1998
filing date -
Feb 11, 1997
priority date (Note) -
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Abstract
A method and apparatus of acquiring and tracking global positioning system signals with fast acquisition speed and high sensitivity is disclosed. A pseudo-random noise matching filter operation is performed on a sample of global positioning system signals to provide a current matched filter result. The current matched filter result is then accumulated with a prior matched filter result from a prior sample of global positioning system signals to produce an accumulated matched filter result. Efficient means for implementing the matched filter are disclosed.
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