Detection and avoidance apparatus and method for use in UWB receiver
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United States of America Patent
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Sep 30, 2014
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app pub date -
Aug 30, 2012
filing date -
Sep 16, 2011
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Abstract
A DAA (Detection And Avoidance) apparatus for use in a UWB receiver includes a frequency offset unit for adding a preset frequency offset to a UWB signal including a victim signal and an FFT unit for performing a fast-Fourier-transformation on the UWB signal with the frequency offset added thereto. The DAA apparatus further includes a DAA unit for detecting a victim signal from the fast-Fourier-transformed UWB signal and, when reception power of the victim signal is higher than a predetermined reference power level, changing a communication channel for the UWB signal to avoid interference.
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