Abstract:

The most difficult job in ultra-wideband (UWB) wireless communications is to design the high speed ADC in which the sampling rate is as high as tens of GHz. A bandpass sampling and total least square reconstruction method is proposed The required sampling rate of the proposed method is close to the signal innovation rate, which is much lower than the Nyquist rate in conventional Shannon sampling theorem. Analysis and simulation results show that the proposed method can accurately reconstruct the original UWB pulses with much lower sampling rate in the presence of noises.