A Novel Time-hopping Sequence Design for TH-PPM UWB

This paper investigates the specific role of time-hopping sequences in the time-hopping pulse position modulation ultra-wideband system and its effect on the BER performance of the system.A novel family of time-hopping sequences that provides the optimal hamming correlation properties is constructed.Computer simulation shows that the UWB system employing the constructed time-hopping sequence can reduce the multi-access interference and accordingly better performance can be gained as compared with the other ones.