DocumentCode
575513
Title
Precise asynchronous RF ToF measurement based on Two-Way-Ranging using heterogeneous clocks
Author
Saigo, Yusuke ; Ko, Sang-il ; Takayama, Jun-ya ; Ohyama, Shinji
Author_Institution
Grad. Sch. of Sci. & Eng., Tokyo Inst. of Technol., Tokyo, Japan
fYear
2012
fDate
20-23 Aug. 2012
Firstpage
1437
Lastpage
1442
Abstract
In this paper, a novel RF TOF ranging method for wireless sensor networks based on Two-Way-Ranging (TWR) using heterogeneous clocks is proposed. It generates new virtual time resolution which is smaller than the intrinsic time resolution of two clocks. In order to get TOF information without synchronization of two nodes, this system uses round trip time of RF, where one sensor node transmits RF signals at prescribed time. We analyzed this method and confirmed that the resolution of TOF ranging is greatly improved.
Keywords
clocks; distance measurement; radiofrequency measurement; wireless sensor networks; RF signal; TWR; asynchronous RF ToF measurement; heterogeneous clock; round trip time; two way ranging; virtual time resolution; wireless sensor networks; Clocks; Distance measurement; Frequency measurement; RF signals; Radio frequency; Synchronization; Wireless sensor networks; heterogeneous clocks; time-of-flight (ToF); two-way-ranging (TWR); wireless sensor networks (WSNs);
fLanguage
English
Publisher
ieee
Conference_Titel
SICE Annual Conference (SICE), 2012 Proceedings of
Conference_Location
Akita
ISSN
pending
Print_ISBN
978-1-4673-2259-1
Type
conf
Filename
6318675
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