Path-Loss and Time-Dispersion Parameters of UWB Signals in a Military Airplane

This study aims to obtain a comprehensive understanding of the potentials of ultrawideband (UWB) technology by characterizing the UWB propagation channel in a Hercules C-130 military airplane. In particular, we present a method for calculating the frequency-dependent path-loss factor. Moreover, results include the distance-dependent and frequency-dependent path-loss factors and their standard deviation. Finally, we provide empirical values for the time-dispersion parameters such as the mean excess delay, the maximum excess delay, and the root mean square (rms) delay spread. The values of these parameters can be used for UWB channel modelling.