Method and apparatus for decoding an incident UWB signal with inter symbol interferences

Abstract

The method is for decoding an incident UWB signal including successive incident pulses respectively received during successive Pulse Repetition Periods, each incident pulse including one transmitted symbol among M possible symbols, and the transmitted symbol being corrupted by Inter Symbol Interferences (ISI). The method includes determining a correlation matrix (Γ), whose terms respectively represent the correlation between all the M possible symbols transmitted in a current Pulse Repetition Period, and at least in the previous and in the next Pulse Repetition Periods, and performing a correlation between an incident current pulse received during a current PRP and the M possible symbols transmitted in the current PRP and at least in the previous and in the next PRPs for obtaining a correlation vector (Y). The method also includes preprocessing the correlation vector (Y) including reducing the effect of the ISI from the correlation vector (Y) by using the correlation matrix (Γ), and decoding the preprocessed correlation vector (Y″) for obtaining the bits of the transmitted symbol included in the incident received current pulse.

Dependencies are inferred from the claim text.