Positioning in a single-frequency network
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United States of America Patent
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Jun 15, 2010
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app pub date -
Jun 28, 2007
filing date -
Jun 28, 2006
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Abstract
Apparatus having corresponding methods and computer-readable media comprise a receiver adapted to receive a plurality of single-frequency network (SFN) signals at a predetermined frequency; a correlator adapted to correlate the SFN signals with a predetermined reference signal, wherein correlating produces a plurality of correlation peaks; a grouper circuit adapted to group the correlation peaks into arrival groups such that the correlation peaks in different arrival groups are known to be from different transmitters; and a selection circuit adapted to select the earliest correlation peak in each arrival group as a leading correlation peak.
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