The statistical description and TOA placement feasibility analysis of ultra-wide band in-vehicle channel measurements
Keywords:
Ultra-Wideband; Car Environment; Channel Model; Geolocation; Time-of-Arrival.Abstract
In-vehicle wireless channel measurements in the ultra-wideband (UWB) range of 3–11 GHz are reported here. The impacts of both the
antenna's location and the presence of people in the vehicle's passenger compartment are investigated. Channel impulse responses
(CIRs) have been computed by inverse Fourier transform from frequency domain data. The impact of picking a certain band group
throughout the whole UWB spectrum is also detailed. In order to characterize the wireless channel statistics, a generalized extreme value
procedure is used to the measured channel transfer functions. All possible combinations of antenna location and passenger occupancy
are considered, and related parameter sets are calculated and recorded. We have also conducted a feasibility study of a TOA-based invehicle
UWB localization system. Average error and standard deviation are used to assess the positioning accuracy.
