Pulse Design Methods for UWB Vehicular Radar

A UWB vehicular radar has been studied and developed to achieve a safe driving and to promote business in an intelligent transport system. In the paper, pulse design methods for ultra-wideband (UWB) vehicular radar are presented. One method is based on prolate spheroidal wave function; the other is the modified method which can obtain the pulse by adjusting the parameters (f_L, f_H). Simulation results show that both the two methods can generate pulse shapes which comply with FCC regulation. Meanwhile by selecting appropriate (f_L, f_H), the latter method has higher spectral utilization ratio than the former.