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Multipath delay estimation using the magnitude spectrum

Publication ,  Journal Article
Hickman, G; Krolik, J
Published in: IEEE Workshop on Statistical Signal Processing Proceedings
January 1, 2005

Four methods are presented by which the relative delay structure of a multipath signal can be estimated from the Fourier magnitude spectrum of the observation. The phase of the underlying source signal may be completely unknown. While the signal autocorrelation function could be used to estimate relative delay from uniform samples of the received magnitude spectrum, the novelty of the proposed methods lies in the fact that the magnitude spectrum samples are not assumed to be uniformly spaced. This makes these methods appropriate for use in frequency-hopped and collaborative sensing systems. Four methods, including a least-squares (LS), maximum likelihood (ML), maximum a posteriori (MAP), and entropy-based approach are presented. Simulation and laboratory experiments indicate that the MAP and ML algorithms provide the best performance. © 2005 IEEE.

Duke Scholars

Published In

IEEE Workshop on Statistical Signal Processing Proceedings

DOI

Publication Date

January 1, 2005

Volume

2005

Start / End Page

663 / 668
 

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Hickman, G., & Krolik, J. (2005). Multipath delay estimation using the magnitude spectrum. IEEE Workshop on Statistical Signal Processing Proceedings, 2005, 663–668. https://doi.org/10.1109/ssp.2005.1628677
Hickman, G., and J. Krolik. “Multipath delay estimation using the magnitude spectrum.” IEEE Workshop on Statistical Signal Processing Proceedings 2005 (January 1, 2005): 663–68. https://doi.org/10.1109/ssp.2005.1628677.
Hickman G, Krolik J. Multipath delay estimation using the magnitude spectrum. IEEE Workshop on Statistical Signal Processing Proceedings. 2005 Jan 1;2005:663–8.
Hickman, G., and J. Krolik. “Multipath delay estimation using the magnitude spectrum.” IEEE Workshop on Statistical Signal Processing Proceedings, vol. 2005, Jan. 2005, pp. 663–68. Scopus, doi:10.1109/ssp.2005.1628677.
Hickman G, Krolik J. Multipath delay estimation using the magnitude spectrum. IEEE Workshop on Statistical Signal Processing Proceedings. 2005 Jan 1;2005:663–668.

Published In

IEEE Workshop on Statistical Signal Processing Proceedings

DOI

Publication Date

January 1, 2005

Volume

2005

Start / End Page

663 / 668