Pursuing a Time Varying and Moving Source Signal using a Sensor Equipped UAV

Kashyap, Abhishek and Ghose, Debasish (2017) Pursuing a Time Varying and Moving Source Signal using a Sensor Equipped UAV. In: International Conference on Unmanned Aircraft Systems (ICUAS), JUN 13-16, 2017, Miami, FL, pp. 506-515.

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Abstract

A methodology to locate a target using measurements of its signal strength is discussed in this paper. One of the main challenges lie in locating the source when it is moving or has time varying signal strength. In this paper two different strategies to locate and intercept a time varying and moving source by an Unmanned Aerial Vehicle (UAV) is presented. In the first strategy the UAV traverses a complete circular path during the first phase, also called the discovery phase, and uses the measurements of the signal strength to estimate the direction of the source location. This is followed by the pursuit phase in which the UAV realigns itself towards the desired direction and then moves along it in order to intercept the source. In the second strategy the UAV moves along a semi-circular path during the discovery phase and then using the measurements of the signal strength realigns itself and moves towards the target in the pursuit phase. The performance of both these algorithms is demonstrated through simulations for different kinds of target motion and variations, including measurements affected by noise.

Item Type:	Conference Proceedings
Series.:	International Conference on Unmanned Aircraft Systems
Publisher:	IEEE, 345 E 47TH ST, NEW YORK, NY 10017 USA
Additional Information:	Copy right for the article belong to IEEE, 345 E 47TH ST, NEW YORK, NY 10017 USA
Department/Centre:	Division of Mechanical Sciences > Aerospace Engineering(Formerly Aeronautical Engineering)
Date Deposited:	15 Mar 2018 18:59
Last Modified:	15 Mar 2018 18:59
URI:	http://eprints.iisc.ac.in/id/eprint/59202

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