An ultra-wideband indoor NLOS radio channel amplitude probability density distribution

The initial results of the development of an ultra-wideband (UWB) radio channel model based on an UWB radio channel measurement campaign carried out at IMST premises are summarised. The derived amplitude statistical model applies for pass band UWB signals under NLOS conditions. From stepped frequency transfer function measurements in the range from 1 to 11 GHz, employing wideband biconical antennas and successive windowed Fourier transform, radio channel responses were obtained in delay windows of approximately 160 ns width. In different locations the radio channel transfer function was measured over a spatial grid of 1500 mm times 300 mm and 10 mm resolution in both horizontal axes. The obtained data were used to verify the statistical model described.