A New Subspace-Based Time Delay Estimation of Chirp Spread Spectrum

Daegun OH  Sanghun YOON  Jong-Wha CHONG  

Publication
IEICE TRANSACTIONS on Communications   Vol.E92-B   No.4   pp.1418-1421
Publication Date: 2009/04/01
Online ISSN: 1745-1345
DOI: 10.1587/transcom.E92.B.1418
Print ISSN: 0916-8516
Type of Manuscript: LETTER
Category: Sensing
Keyword: 
subspace,  CSS,  time of arrival,  

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Summary: 
For robust time delay estimation, we propose a new subspace-based algorithm which estimates the phase shift not between the adjacent samples of the dechirped sinusoid but between the dechirped sinusoids in different bands. We analyze the proposed and the conventional method in AWGN channel and verifiy the proposed algorithm through Monte-carlo simulations in AWGN and multi-path channels.