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Author Keller, C.M. ♦ Young, D.P.
Source IEEE Xplore Digital Library
Content type Text
Publisher Institute of Electrical and Electronics Engineers, Inc. (IEEE)
File Format PDF
Copyright Year ©2005
Language English
Subject Domain (in DDC) Technology ♦ Engineering & allied operations ♦ Applied physics
Subject Keyword Performance evaluation ♦ Transmitters ♦ Time difference of arrival ♦ Transmitting antennas ♦ Receiving antennas ♦ Clustering algorithms ♦ Antennas and propagation ♦ Ultra wideband technology ♦ Testing ♦ Antenna arrays
Abstract This paper describes a time-difference-of-arrival (TDOA) based algorithm to localize short-pulse ultra-wideband (UWB) signals using a vehicle-sized multiple-antenna array. The algorithm uses a generalized cross-correlation method in conjunction with novel imaging and image combining techniques for computing estimates of the transmitter position. Experiments were performed in a suburban woods to obtain real data for testing the algorithms; this paper describes the experiments and presents the results. The examples show that small position changes of the transmit antenna or the receive antenna array provide different propagation paths for improving the chances of obtaining good localization estimates in scenarios with multipath and obstructions. Although the algorithm performance varies with the different scenarios examined, plots including histograms consistently show clustering of the localization estimates in the direction of the true transmitter locations.
Description Author affiliation: Lincoln Lab., MIT, Lexington, MA, USA (Keller, C.M.; Young, D.P.)
ISBN 078039397X
Educational Role Student ♦ Teacher
Age Range above 22 year
Educational Use Research ♦ Reading
Education Level UG and PG
Learning Resource Type Article
Publisher Date 2005-09-05
Publisher Place Switzerland
Rights Holder Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Size (in Bytes) 1.32 MB
Page Count 6
Starting Page 290
Ending Page 295


Source: IEEE Xplore Digital Library