Subspace-Based Propagation Delay Estimation Robust to Frequency Offset for Two-Way Ranging

Author

Oh, Daegun ; Kwak, Myung-kyun ; Chong, Jong-Wha

Author_Institution

Hanyang Univ., Seoul, South Korea

Volume

16

Issue

2

fYear

2012

fDate

2/1/2012 12:00:00 AM

Firstpage

216

Lastpage

219

Abstract

This letter proposes a subspace-based propagation delay estimation algorithm immune to sampling frequency offset and carrier frequency offset. The proposed algorithm is able to achieve a highly accurate propagation delay estimation by combining subspace-based fractional delay estimation with a symmetric double sided two-way ranging protocol. Not only Cramer-Rao lower bound (CRLB) was derived but also the performance of the proposed algorithm was analyzed and verified through Monte-Carlo simulations in additive white Gaussian noise (AWGN) and a two-path channel.

Keywords

AWGN; Monte Carlo methods; delay estimation; distance measurement; protocols; signal sampling; telecommunication; AWGN; Cramer-Rao lower bound; Monte-Carlo simulations; additive white Gaussian noise; carrier frequency offset; highly accurate propagation delay estimation; sampling frequency offset; subspace-based fractional delay estimation; subspace-based propagation delay estimation algorithm; symmetric double sided two-way ranging protocol; two-path channel; Algorithm design and analysis; Chirp; Distance measurement; Estimation; Frequency estimation; Robustness; Time of arrival estimation; Propagation delay; subspace-based; two-way ranging;

fLanguage

English

Journal_Title

Communications Letters, IEEE

Publisher

ieee

ISSN

1089-7798

Type

jour

DOI

10.1109/LCOMM.2011.120211.111824

Filename

6095292