Method for receiving spectrum spreading signals with frequency shift correction
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United States of America Patent
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Jun 17, 2008
Grant Date -
May 17, 2007
app pub date -
Aug 31, 2006
filing date -
Dec 23, 1998
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Abstract
A method for receiving spectrum spreading signals using a Doppler-effect frequency-shift correction generates a corrective signal based on an estimation of a modulation period related to the Doppler effect detected in a preamble portion of a received signal. The corrective signal is used for correcting an information portion of the received signal. Base band digital signals are operated upon by using the DOT and CROSS components.
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