Ultra-Wideband (UWB) Wireless Communication Technique

Ultra-Wideband (UWB) pulse communication is a very different communication technique from others. It has characteristics of high system capacity, low power spectral densities, exceptional multiparth immunity, simple structure and low probability of detection. The UWB pulse communication is new exploration of radio spectrum, and it resolves the important problem of radio propagation. For its strong support to wireless input, we should study it.In this paper we first give theory of UWB pulse communication system. Then we introduce pulse position modulation (PPM) using PN code and analysis its multi-access performance, system capacity and power spectrum density. On the basis of those analyses, we study the pulse shape and the anti-jamming ability of the system. At last, multiple access with pseudochaotic time hopping is introduce. During the analysis, simulation with Matlab is done.