A discussion on passive location discovery in emitter networks using angle-only measurements

Authors:
Adrian N. Bishop;Pubudu N. Pathirana
Affiliations:
Deakin University School of Engineering and Information Technology, Victoria, Australia;Deakin University School of Engineering and Information Technology, Victoria, Australia
Venue:
Proceedings of the 2006 international conference on Wireless communications and mobile computing
Year:
2006

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Abstract

In this paper we discuss the ghost node problem found when triangulation of 2 or more nodes is required. We present and discuss a simple algorithm, termed ABLE (Angle Based Location Estimation), that will position randomly placed emitters in a wireless sensor network using a mobile antenna array. The individual nodes in the network are relieved of the localization task by the mobile antenna system and require no modifications to account for location determination. Furthermore, no beacon nodes (i.e. nodes that know their own position) are required. We provide analysis that indicates a reasonably small number of measurements are required to guarantee the successful localization of the emitting nodes and demonstrate our results through simulation.