UWB indoor channel measurements study

The results of UWB channel measurements on ´classical´ office building scenarios are presented, focusing on the ability to extract and analyse each path from the channel impulse response thanks to virtual array sensors measurements. Particularly, the direction of arrival (DOA) distribution and the way the waveform is distorted by simple propagation phenomena like reflection, diffraction or through-wall propagation, have been studied. A coherent post-processing method, based on the CLEAN algorithm, is used both to solve the echo DOA and to obtain its waveform averaged over the whole sensors grid. By comparing the reconstructed and the initial signal, we also deduce the percentage power in the detected paths.