Classification of indoor environments based on spatial correlation of RF channel fingerprints

This paper presents a realistic indoor multipath environment classification based on practical RF measurements. The classification is based on correlation statistics that accounts for grid spacing and system bandwidth. The Channel Transfer Function (CTF) and Frequency Coherence Function (FCF) are obtained for each grid, then inter-correlated to obtain the spatial coherence spectrum which shows a unique pattern that distinguishes LOS open space and LOS cluttered.