Signal timing synchronizer
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United States of America Patent
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Sep 29, 1998
Issued Date -
N/A
app pub date -
Jul 12, 1996
filing date -
Jan 22, 1992
priority date (Note) -
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Abstract
A method and apparatus are disclosed for characterizing multipath-induced distortions in the autocorrelation function of a correlation receiver in order to reduce effects of these multipath-induced distortions on the accuracy of detecting the time of arrival of a received signal. The magnitude of the multipath-induced errors adversely affecting the shape of the autocorrelation function is estimated in real time, for example, through the use of secondary scanning correlators whose time base is independent of a typical receiver's detection-oriented correlators. This error is subtracted from the detection-oriented correlator's timing, thereby yielding a more accurate autocorrelation function.
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