In-vehicle UWB channel measurement, model and spatial stationarity

This contribution documents an ultra-wide band (UWB) channel measurement performed in an in-vehicle environment for the frequency range 3-11 GHz. An emphasis is placed into an evaluation of a spatial consistency of measured channel characteristics in terms of Pearson correlation between measured channel impulse responses (CIRs). Moreover, the measured CIRs are reproducible via a two-part exponentially decaying envelope-delay profile (EDP). The small scale variation of received signal is parametrized utilizing a random process obeying the generalized extreme value (GEV) distribution. Validation of the channel model is demonstrated utilizing a two sample Kolmogorov-Smirnov (K-S) test.