UWB communication receiver feedback loop

US7305052B2 · kind B2 · utility

Assignee

• The Regents of the University of California · US

Inventors

• Alex Spiridon · Palo Alto, US
• Dave Benzel · Livermore, US
• Farid U. Dowla · Castro Valley, US
• Faranak Nekoogar · San Ramon, US
• Erwin T. Rosenbury · Livermore, US

Key dates

• Filing date: Mar 31, 2004
• Grant date: Dec 4, 2007
• Expiry date: Mar 17, 2026

Classification

• Technology area (CPC H): Electricity
• CPC primary: H04B1/719
• WIPO field: Telecommunications
• WIPO sector: Electrical engineering

Abstract

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.