A Novel UWB Pulse Waveform Design Method

Abstract

Avoiding interference, one of the efficient methods is to design appropriate pulse waveform. In this paper an optimized pulse design method is proposed as ultra wideband (UWB) pulse shapes that made use of a linear only triple-pulse combination of multiple Gaussian derivatives. So as to gain the best weight coefficient, we proposed to optimize its weight vector and shaping factor by particle swarm optimization (PSO) technique, which is an optimization method inspired by swarm behavior. Then we use the standard Gaussian approximation (SGA) algorithm to evaluate the performance of these pulses in the presence of multiuser interference (MUI). The simulation results show that the linear Gaussian combined UWB pulses meet the power spectral constraint of the Federal Communication Commission (FCC) emission mask rule. Furthermore, its performance is better than single Gaussian derivation pulse or other ways to satisfy some demand.