RF Time of Flight Ranging for Wireless Sensor Network Localization
Lanzisera, S.
Lin, D.T.
Pister, K.S.J.
California Univ., Berkeley, CA;
This paper appears in: Intelligent Solutions in Embedded Systems, 2006 International Workshop on
Publication Date: 30-30 June 2006
On page(s): 1-12
Location: Vienna,
ISBN: 3-902463-06-6
INSPEC Accession Number: 9177429
Digital Object Identifier: 10.1109/WISES.2006.329127
Current Version Published: 2007-03-12
Abstract
A simple system for measuring the peer to peer radio frequency time of flight between two identical sensor motes for distance measurement is presented. This scheme uses a 2.4 GHz radio, simple real time processing, and offline range extraction. Methods for reducing error from clock offset and multipath propagation are presented and implemented on prototype hardware. Measurement results are presented including measurements taken in a coal mine. Typical ranging accuracies are between 1 mRMS and 3 mRMS
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