A Novel Method to Generate UWB Shape Impulse

The impulse waveform design is an essential factor to the UWB system performance. A new method to generate orthogonal UWB shape impulses is proposed based on the eigenvector of Hermite matrix and chirp signal, and also the desired shape impulses have been achieved. The simulation results show that the power spectral density distribution of the short time impulses generated by this method is consistent to the FCC spectral mask of UWB. The UWB shape impulses given here have many characteristics such as high spectral occupation rate, high autocorrelation and zero cross-correlation, which is beneficial to the multi-access detection.