IEICE Transactions on Communications
Online ISSN : 1745-1345
Print ISSN : 0916-8516
Regular Section
Target Localization Using Instrumental Variable Method in Sensor Network
Yong Hwi KIMKa Hyung CHOITae Sung YOONJin Bae PARK
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2013 Volume E96.B Issue 5 Pages 1202-1210

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Abstract
An instrumental variable (IV) based linear estimator is proposed for effective target localization in sensor network by using time-difference-of-arrival (TDOA) measurement. Although some linear estimation approaches have been proposed in much literature, the target localization based on TDOA measurement still has a room for improvement. Therefore, we analyze the estimation errors of existing localization estimators such as the well-known quadratic correction least squares (QCLS) and the robust least squares (RoLS), and demonstrate advantages of the proposition by comparing the estimation errors mathematically and showing localization results through simulation. In addition, a recursive form of the proposition is derived to consider a real time application.
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© 2013 The Institute of Electronics, Information and Communication Engineers
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