A transform domain technique for suppressing narrowband interference in ultra-wideband system

An adaptive waveform processing technique called TDCS is introduced as a possible method for estimating and suppressing the narrowband interference in UWB system. The estimation of the interference can be accomplished using AR methods. Then a novel adaptive pulse waveform optimization algorithm based on linear combination of different derivative functions of Gaussian pulse is investigated to produce the expected spectral notches in achieving NBIs avoidance as well as matching with the FCC spectral mask. Simulation results show that the proposed adaptive pulse has better BER performances and stronger anti-jamming abilities than other conventional waveforms. It provides good guidance for future implementations.