Title :
RF Time of Flight Ranging for Wireless Sensor Network Localization
Author :
Lanzisera, Steven ; Lin, David T. ; Pister, Kristofer S J
Author_Institution :
California Univ., Berkeley, CA
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
Keywords :
distance measurement; multipath channels; wireless sensor networks; 2.4 GHz; clock offset; coal mine; distance measurement; identical sensor motes; multipath propagation; offline range extraction; peer to peer radio frequency time of flight ranging; real time processing; wireless sensor network localization; Clocks; Costs; Frequency measurement; Hardware; Peer to peer computing; Prototypes; Radio frequency; Sensor systems; Time measurement; Wireless sensor networks;
Conference_Titel :
Intelligent Solutions in Embedded Systems, 2006 International Workshop on
Conference_Location :
Vienna
Print_ISBN :
3-902463-06-6
DOI :
10.1109/WISES.2006.329127
