In this paper, certain scaling functions are generated using the dyadic subband tree structure and applied to a time-hopping, pulse position modulation, ultra-wideband (TH-PPM UWB) system. Scaling functions can be obtained by iterating a lowpass filter at each level using a critically sampled dyadic tree. The performance of the TH-PPM UWB system employing scaling functions as the mono-cycle waveform is evaluated through computer simulations in a Rayleigh fading environment.
목차
Abstract Ⅰ. Introduction Ⅱ. Generation of Scaling Functions Ⅲ. A TH-PPM UWB System EmployingScaling Functions Ⅳ. Simulation Results Ⅴ. Conclusion References