Multipath delay estimation using a superresolution PN-correlation method

TitleMultipath delay estimation using a superresolution PN-correlation method
Publication TypeJournal Article
Year of Publication2001
AuthorsF Bouchereau, D Brady, and C Lanzl
JournalIeee Transactions on Signal Processing
Start Page938
Pagination938 - 949
Date Published05/2001

This paper addresses the problem of high-resolution estimation of a multipath channel delay profile. We propose several improvements to the so-called superresolution pseudo-noise sequence correlation method (SPM) and analyze its performance on time-varying channels. SPM is based on the multiple signal classification (MUSIC) algorithm, which requires decorrelation of the multipath echoes. The proposed improvements enable SPM-based delay estimation in the presence of narrowband interference, and they reduce the necessary transmission window while preserving multipath echo decorrelation. These improvements are analyzed and are applied to underwater acoustic experimental data.

Short TitleIeee Transactions on Signal Processing