Synchronisation method and device for a communication receiver
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United States of America Patent
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Dec 9, 2003
Grant Date -
N/A
app pub date -
Sep 5, 2000
filing date -
Sep 2, 1999
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The method determines a deviation between a modulation frequency, combined with a first baseband signal to form a transmitted signal and a frequency used by the receiver to form a second baseband signal from a received signal, in order to adjust the frequency used by the receiver. Knowing a time segment of the first signal and the time position of a corresponding segment of the second signal, whereby the segments comprise N samples at a sample frequency F.sub.e, a frequency transform Y(f), of size N, of the product of the complex conjugate of said segment of the first signal by the corresponding segment of the second signal is calculated, and the frequency deviation .DELTA.f which makes the frequency transform Y(f) as close as possible to C.S.sub.c (f-.DELTA.f), is determined, where ##EQU1## and C is a complex coefficient.
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