Broadband ing interferometry for weak multipath signal detection

An appropriate technique dedicated to indoor channel sounding and characterisation is described. Generally screened by strong line of sight (LOS) signals, weak non-line of sight multipath is difficult to detect and to quantify accurately. For this reason the ing interferometric approach, well suited for achieving LOS dimming, is proposed to emphasise multipath contributions. Preliminary experimental results, performed in the millimetre band, are presented.