Block oriented digital communication system and method
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United States of America Patent
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Apr 15, 2008
Grant Date -
Jan 25, 2007
app pub date -
Aug 24, 2006
filing date -
Apr 17, 2002
priority date (Note) -
Expired
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Abstract
A method and system for estimating a time shift required for symbol synchronization in a block oriented digital communication systems such as an orthogonal frequency division multiplexing (OFDM) or a discrete multi-tone (DMT) data transmission system. The method uses an N/d inverse discrete Fourier transform (IDFT), where N is a sample number and d is a decimation factor, or alternatively an N/(2d) inverse fast Fourier transform (IFFT) for a real received signal or an N/d IDFT for a complex received signal.
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