Page "Ultra-wideband" Paragraph 5

A valuable aspect of UWB technology is the ability for a UWB radio system to determine the " time of flight " of the transmission at various frequencies.

This helps overcome multipath propagation, as at least some of the frequencies have a line-of-sight trajectory.

With a cooperative symmetric two-way metering technique, distances can be measured to high resolution and accuracy by compensating for local clock drift and stochastic inaccuracy.