Delay Estimation in Presence of Dense Multipath

Exploiting single-shot channel measurements for estimating radio frequency channel parameters remains an active research topic. In presence of dense multipath, it is challenging to estimate accurately parameters of multipath components (MPCs). While standard methods identify MPCs with high energy, we propose to estimate MPCs which are uncorrupted by interfering dense multipath. Based on real and synthetic data, our evaluations demonstrate the potential performance gain with respect to standard methods. The results are compared to the Cramér–Rao bound showing the efficiency of the proposed method.