Time Domain Indoor Channel Measurements Summary

This report presents time-domain measurements and characterization of ultra-wideband (UWB) propagation in indoor environments and details the experimental procedures and measurement setup used to collect data. The measurements were performed using a sampling oscilloscope as receiver and a Gaussian-like pulse generator as transmitter. The duration of pulses is less than 100 ps. An acquisition time window of 100 ns was used to capture all possible multipath components. Two sets of measurements were performed, one set with directional TEM horn antennas and another with omni-directional biconical antennas. A total of about 400 signal profiles were collected. The TEM horn and biconical antennas may be considered as representative examples for stationary line-of-sight and mobile applications, respectively. To reduce the interference from undesirable sources, such as radiation leakage from the pulse generator’s internal electronics, radiation from utility rooms, etc, the acquired profiles are filtered in the time domain. The 3dB bandwidth of the bandpass filter used for interference and noise rejection occupies a frequency range from 0.1 GHz to 12 GHz. For energy calculation and large-scale pathloss analysis, a noise threshold i