Method and apparatus for processing signals
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United States of America Patent
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Jun 18, 2013
Grant Date -
Feb 2, 2012
app pub date -
Oct 27, 2010
filing date -
Jul 30, 2010
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Abstract
Incoming signals that are sparse in the code-correlation domain, such as CDMA signal (GPS signals being a specific example of such signals) are processed by sampling the incoming signal at irregular time intervals at an average rate that is significantly lower than the Nyquist rate; which in the case of GPS signals is the chip rate of a pseudorandom code sequence that is embedded in the signal. The sampled signal is processed with locally generated signals that are also sampled the same irregular time intervals.
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