Road Target Search and Tracking with Gimballed Vision Sensor on a UAV
2012 (English)Report (Other academic)
This work considers a sensor management problem where a number of road bounded vehicles are monitored by a UAV with a gimballed vision sensor. The problem is to keep track of all discovered targets and simultaneously search for new targets by controlling the pointing direction of the vision sensor and the motion of the UAV. A planner based on a state-machine is proposed with three different modes; target tracking, known target search, and new target search. A high-level decision maker chooses among these sub-tasks to obtain an overall situational awareness. A utility measure for evaluating the combined search and target tracking performance is also proposed. By using this measure it is possible to evaluate and compare the rewards of updating known targets versus searching for new targets in the same framework. The targets are assumed to be road bounded and the road network information is used both to improve the tracking and sensor management performance. The tracking and search are based on flexible target density representations provided by particle mixtures and deterministic grids.
Place, publisher, year, edition, pages
Linköping: Linköping University Electronic Press, 2012. , 33 p.
LiTH-ISY-R, ISSN 1400-3902 ; 3049
UAV surveillance, Sensor management, Path planning, Search theory, Road target tracking, Particle filter, Stochastic scheduling, Security and monitoring
IdentifiersURN: urn:nbn:se:liu:diva-76891ISRN: LiTH-ISY-R-3049OAI: oai:DiVA.org:liu-76891DiVA: diva2:517398
ProjectsCADICSSecurity LinkExtended Target Tracking
FunderSwedish Research Council