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UWB communication receiver feedback loop

United States Patent

December 4, 2007
View the Complete Patent at the US Patent & Trademark Office
Lawrence Livermore National Laboratory - Visit the Industrial Partnerships Office Website
A novel technique and structure that maximizes the extraction of information from reference pulses for UWB-TR receivers is introduced. The scheme efficiently processes an incoming signal to suppress different types of UWB as well as non-UWB interference prior to signal detection. Such a method and system adds a feedback loop mechanism to enhance the signal-to-noise ratio of reference pulses in a conventional TR receiver. Moreover, sampling the second order statistical function such as, for example, the autocorrelation function (ACF) of the received signal and matching it to the ACF samples of the original pulses for each transmitted bit provides a more robust UWB communications method and system in the presence of channel distortions.
Spiridon; Alex (Palo Alto, CA), Benzel; Dave (Livermore, CA), Dowla; Farid U. (Castro Valley, CA), Nekoogar; Faranak (San Ramon, CA), Rosenbury; Erwin T. (Castro Valley, CA)
The Regents of the University of California (Oakland, CA)
10/ 815,450
March 31, 2004
The United States Government has rights in this invention pursuant to Contract No. W-7405-ENG-48 between the United States Department of Energy and the University of California for the operation of Lawrence Livermore National Laboratory.