Method of recovering symbols of a digitally modulated radio signal
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United States of America Patent
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Jun 22, 1999
Grant Date -
N/A
app pub date -
Jun 27, 1996
filing date -
Jun 27, 1995
priority date (Note) -
Expired
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Abstract
A method of recovering a finite duration of N symbols of a digitally-modulated signal, wherein a received signal is sampled at a period T.sub.1, generating a batch of K.sub.1 samples, wherein K.sub.1 is chosen to be an integer multiple of the N symbols. The K.sub.1 time-domain samples are input to a discrete fourier transform (20) providing a first batch of K.sub.1 frequency-domain samples. The first batch of K.sub.1 frequency-domain samples are multiplied by a set of frequency-domain K.sub.1 complex gains to provide a second batch of K.sub.1 frequency-domain samples. The second batch of K.sub.1 frequency-domain samples are broken into K.sub.1 /N batches of N samples. The K.sub.1 /N batches are added, generating a single batch of N samples which is input to an inverse fast fourier transform (24) to obtain N time-domain samples.
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