Localization in Wideband SIMO Channels Using Pulse Shape.

This work considers the problem of localization through joint angle and delay estimation in a wideband single-input multiple-output (SIMO) channel. We assume that a band-limited pulse shaping filter is used at the transmitter to convert the discrete samples into analog waveform. Majority of the prior works in localization either assume a narrowband scenario where the signal propagation delay across the receive antenna array modeled as a phase shift or neglect the pulse shaping while utilizing wideband channel models. We show that in scenarios with large bandwith and number of antennas, changes in the amplitude of the pulse shaping waveform across the antenna array can be utilized in improving the time-of-arrival (ToA) estimation accuracy. Numerical results demonstrate that sub-meter location accuracy can be achieved at moderate bandwidths in line-of-sight (LoS) scenarios.