NDLI: Generalized vernier effect and its application to precise RF Time-of-Flight measurement for wireless sensor networks

Content Provider	IEEE Xplore Digital Library
Author	Sang-il Ko Aikawa, G. Takayama, J.-y. Ohyama, S.
Copyright Year	2010
Description	Author affiliation: Tokyo Institute of Technology, Department of Mechanical and Control Engineering, Graduate school of Science and Engineering, Japan (Sang-il Ko; Aikawa, G.; Takayama, J.-y.; Ohyama, S.)
Abstract	In order to exactly measure time delay of RF signal to travel a short distance, both high precision clock system and complex signal processing is absolutely required. This report proposes a novel methodology based on generalized vernier effect (GVE) to precisely measure RF Time-of-Flight (ToF) for wireless sensor networks (WSNs) without such complicated contraptions to realize the reliable RF ToF estimation. The new methodology adopts two heterogeneous clocks having low operating frequencies around 10MHz so that new virtual time resolution is generated, which is much smaller than the intrinsic time resolution of two clock sources; consequently, it makes it possible for a slow operating clock to accurately measure RF ToF. We certified the validity of the proposed methodology based on GVE through experiments to measure RF ToF using a prototype of the synch-free RF ToF measurement system, which was suggested as a practical system of RF ToF ranging for application to WSNs.
Starting Page	2027
Ending Page	2032
File Size	1124986
Page Count	6
File Format	PDF
ISBN	9781424481705
ISSN	19300395
e-ISBN	9781424481699
e-ISBN	9781424481682
DOI	10.1109/ICSENS.2010.5690398
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2010-11-01
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Radio frequency Sensors Clocks Distance measurement Wireless sensor networks RF signals RF round-trip time wireless sensor networks (WSNs) time-of-flight (ToF) generalized vernier effect (GVE) conventional vernier effect (CVE) heterogeneous clocks
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
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9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

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