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High-resolution Range Estimation Technique Using Shift Invariant TOA Estimation Algorithm for Indoor Localization of Chirp Spread Spectrum System

Title
High-resolution Range Estimation Technique Using Shift Invariant TOA Estimation Algorithm for Indoor Localization of Chirp Spread Spectrum System
Author
정정화
Keywords
Distance measurement; Time of arrival estimation; Chirp; Estimation; Frequency estimation; Protocols; Time frequency analysis; Subspace; Ranging system; TOA
Issue Date
2012-09
Publisher
IEEE
Citation
2012 3rd IEEE International Conference on Network Infrastructure and Digital Content Network Infrastructure and Digital Content (IC-NIDC), 2012 3rd IEEE International Conference on, Sep 2012, P.567-572
Abstract
We proposed a subspace-based two-way ranging system for high resolution indoor ranging that is robust to frequency offset. The problem of sampling frequency offset (SFO) is resolved by adopting SDS-TWR protocol, which is developed against SFO. Although there are many papers about subspace-based TOA estimations, they do not consider the effect of carrier frequency offset (CFO). We consider and resolve the effect of CFO through the proposed algorithm with chirp spread spectrum (CSS) signals. Experimental results are obtained through the prototype ranging system composed of a FPGA development board and a RF kit. Results show that the ranging error of the proposed ranging system averages less than 1 meter in an indoor environment.
URI
http://ieeexplore.ieee.org/document/6418818/http://hdl.handle.net/20.500.11754/65951
ISBN
978-1-4673-2201-0; 978-1-4673-2203-4; 978-1-4673-2204-1
ISSN
1326-4279
DOI
10.1109/ICNIDC.2012.6418818
Appears in Collections:
COLLEGE OF ENGINEERING[S](공과대학) > ELECTRONIC ENGINEERING(융합전자공학부) > Articles
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