NDLI: WPI precision personnel locator: Inverse synthetic array reconciliation tomography

Content Provider	IEEE Xplore Digital Library
Author	Cavanaugh, A. Lowe, M. Cyganski, D. Duckworth, R.J.
Copyright Year	2012
Description	Author affiliation: WPI, Worcester, Mass., USA (Cavanaugh, A.; Lowe, M.; Cyganski, D.; Duckworth, R.J.)
Abstract	This paper describes the latest algorithm being developed by the Worcester Polytechnic Institute (WPI) Precision Personnel Location (PPL) project. Our goal is to produce a rapidly deployable, ad-hoc system that can achieve sub meter positioning accuracy in any type of emergency response scenario using available spectrum; specifically we wish to locate first responders in and around buildings. Previous work [1] has led to separate or loosely coupled approaches for fusing RF and inertial positioning data, as well as data from other sensors. The Inverse Synthetic Array Reconciliation Tomography (IS-ART) algorithm is a fusion of RF and inertial measurements that is fundamentally different from previous systems. Instead of fusing positioning results, we use the inertial displacements to coherently fuse successive RF captures. The benefits of this approach are twofold. First, the fusion depends only on relationships between inertial values spanning small time intervals, so that we do not accumulate large inertial drift errors. Second, the RF conditions at each point are expected to be very different because high multi-path environments are very sensitive to spatial perturbations. Since the multi-path signal components are changing rapidly with position we expect that only the direct path signals will be correlated between successive RF data captures taken from unique positions. In order for the direct path signals from different locations to be correlated these captures must be aligned for fusion with the inertial displacement data. The ISART algorithm performs this signal alignment and computes a metric based on this direct path correlation using the sample processing employed by the Singular Value Array Reconciliation Tomography (σART ) algorithm [2]; the ISART solution is the point where the metric is maximal.
Starting Page	1189
Ending Page	1194
File Size	1388232
Page Count	6
File Format	PDF
ISBN	9781467303859
ISSN	21533598
e-ISBN	9781467303873
DOI	10.1109/PLANS.2012.6236974
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2012-04-23
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Biological system modeling Computational modeling Abstracts Radio frequency
Content Type	Text
Resource Type	Article

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
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