Wide-band characterization of building materials for propagation modeling : analysis of dispersion phenomena
Florence Sagnard, Thomas Quiniou, G. El Zein, G. Thevenin-Foray · 2005
In this paper, original developments based on high resolution (HR) algorithms (MUSIC, matrix pencil) are proposed for the spectral analysis of reflection and transmission interactions experienced by a short electromagnetic pulse with construction materials. Such algorithms, whose specificity lies in frequency-dependent multipath phenomena, have been used to reconstruct the impulse responses of a sample from data obtained in a wide but limited bandwidth. The influence of parameters associated with the sample structures has been studied in order to evaluate the performance of HR algorithms in material characterization. Such a study leads to a useful tool for the analysis of free-space measurements. Analysis of experimental data obtained from usual materials are presented.