PADF electromagnetic source localization using extremum seeking control

Huthaifa A. Al Issa; Raúl Ordóñez

doi:10.1117/12.2066976

17 October 2014 PADF electromagnetic source localization using extremum seeking control

Huthaifa A. Al Issa, Raúl Ordóñez

Proceedings Volume 9248, Unmanned/Unattended Sensors and Sensor Networks X; 92480K (2014) https://doi.org/10.1117/12.2066976
Event: SPIE Security + Defence, 2014, Amsterdam, Netherlands

Abstract

Wireless Sensor Networks (WSNs) are a significant technology attracting considerable research interest. Recent advances in wireless communications and electronics have enabled the development of low-cost, low-power and multi-functional sensors that are small in size and communicate over short distances. Most WSN applications require knowing or measuring locations of thousands of sensors accurately. For example, sensing data without knowing the sensor location is often meaningless. Locations of sensor nodes are fundamental to providing location stamps, locating and tracking objects, forming clusters, and facilitating routing. This research focused on the modeling and implementation of distributed, mobile radar sensor networks. In particular, we worked on the problem of Position-Adaptive Direction Finding (PADF), to determine the location of a non- collaborative transmitter, possibly hidden within a structure, by using a team of cooperative intelligent sensor networks. Position-Adaptive radar concepts have been formulated and investigated at the Air Force Research Laboratory (AFRL) within the past few years. In this paper, we present the simulation performance analysis on the application aspect. We apply Extremum Seeking Control (ESC) schemes by using the swarm seeking problem, where the goal is to design a control law for each individual sensor that can minimize the error metric by adapting the sensor positions in real-time, thereby minimizing the unknown estimation error. As a result we achieved source seeking and collision avoidance of the entire group of the sensor positions.

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Huthaifa A. Al Issa and Raúl Ordóñez "PADF electromagnetic source localization using extremum seeking control", Proc. SPIE 9248, Unmanned/Unattended Sensors and Sensor Networks X, 92480K (17 October 2014); https://doi.org/10.1117/12.2066976

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KEYWORDS

Sensors

Sensor networks

Wireless communications

Radar

Control systems

Collision avoidance

IRIS Consortium

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