NDLI: Stochastic Optimal Coordination of Small UAVs for Target Tracking using Regression-based Dynamic Programming

Content Provider	Springer Nature Link
Author	Quintero, Steven A. P. Ludkovski, Michael Hespanha, João P.
Copyright Year	2015
Abstract	We study the problem of optimally coordinating multiple fixed-wing UAVs to perform vision-based target tracking, which entails that the UAVs are tasked with gathering the best joint vision-based measurements of an unpredictable ground target. We utilize an analytic expression for the error covariance associated with the fused measurements of the target’s position, and we employ stochastic fourth-order models for all vehicles, thereby incorporating a high degree of realism into the problem formulation. While dynamic programming can generate an optimal control policy that minimizes the expected value of the fused geolocation error covariance over time, it is accompanied by significant computational challenges due to the curse of dimensionality. In order to circumvent this challenge, we present a novel policy generation technique that combines simulation-based policy iteration with a robust regression scheme. The resulting control policy offers a significant advantage over alternative approaches and shows that the optimal control strategy involves coordinating the UAVs’ distances to the target rather than their viewing angles, which had been a common practice in target tracking.
Starting Page	135
Ending Page	162
Page Count	28
File Format	PDF
ISSN	09210296
Journal	Journal of Intelligent & Robotic Systems
Volume Number	82
Issue Number	1
e-ISSN	15730409
Language	English
Publisher	Springer Netherlands
Publisher Date	2015-10-05
Publisher Place	Dordrecht
Access Restriction	Subscribed
Subject Keyword	Target tracking Unmanned aerial vehicle Autonomous vehicle Regression Monte Carlo Motion planning Probabilistic planning Control, Robotics, Mechatronics Electrical Engineering Artificial Intelligence (incl. Robotics) Mechanical Engineering
Content Type	Text
Resource Type	Article
Subject	Industrial and Manufacturing Engineering Artificial Intelligence Control and Systems Engineering Mechanical Engineering Electrical and Electronic Engineering Software

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