On the pulse shape filter estimation in a multipath context

In many situations of practical interest (such as time-of arrival estimation, structured blind identification / equalization, etc.) the knowledge of the pulse shape filtre is of utmost importance. Many field experiments have reported that assuming a "normalised" pulse shape (e.g. a truncated raised cosine with a given roll-off) is most often very unreliable. In this paper, several approaches for pulse shape filter estimation (assuming different models for the propagation channel) are presented and assessed on real field experiments.