Ultra wideband time-delayed correlator
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United States of America Patent
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Jun 7, 2016
Grant Date -
Sep 3, 2015
app pub date -
May 18, 2015
filing date -
Jan 4, 2011
priority date (Note) -
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Abstract
The present invention is for a method and apparatus to improve an ultra wideband (UWB) digital receiver's performance sensitivity. A transmitted signal stream has each data bit having multiple identical modulated pulses separated by a constant time interval. The received signal stream is applied to a plurality of signal processing groups where the original signal is duplicated in each processing group. The duplicated signal stream in each signal processing group is delayed by a different constant time interval between modulated pulses in the original signal stream and the two signal streams in each signal processing group is correlated and magnitude summed and combined to form a final signal stream which is detected to improve the sensitivity of the receiver.
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