UWB Channel Measurement and Data Analysis in Offshore Oil Platform

This paper presents the ultra-wideband (UWB) channel measurements conducted in an offshore oil platform working base of ShenLi oil field. The measurements are done with a vector network analyzer (VNA) in the frequency band of 3-10 GHz both in line-of-sight (LOS) and non-line-of-sight (NLOS) scenarios to characterize the path loss and small-scale fading statistics. The multiple scatter clusters are caused by the special nature of the environment, for NLOS with large distance, the maximum of the multipath components is several tens of nanoseconds after the arrival of the first component. The measurement data approximately can be fitted to S-V model, and some modifications are made to provide excellent fit: ray power decay constants depend on delay with a linear relationship,and total power of 50 bins in a cluster fit to an exponential function of delay. Channel characteristics including the distance and frequency dependency of path loss, power delay profile, small-scale fading distribution are examined.The small-scale fading fits to m-Nakagami distribution with m-parameter range from 0.8-1.1. The results are helpful to model the the UWB propagation channel in such environment.