A method and system for estimating DC offset and removing the excess DC offset from samples used by an overlap-and-add operation at the receiver of OFDM symbols in UWB communication. The DC offset for each sample within the overlap-and-add interval may be estimated using a sliding window, of the size required for an FFT, operation over past samples. The DC offset may be estimated for a sample within the overlap-and-add interval and updated for the succeeding samples. A size of the overlap-and-add interval may be fixed or may be allowed to vary according to switching characteristics of an analog RF stage preceding the overlap-and-add operation.
申请公布号
WO2007014067(A3)
申请公布日期
2007.05.10
申请号
WO2006US28467
申请日期
2006.07.21
申请人
WIONICS RESEARCH;MAHADEVAPPA, RAVISHANKAR, H.;BRINK, STEPHAN, TEN