Brief paper: Nonlinear filtering in target tracking using cooperative mobile sensors
Automatica (Journal of IFAC)
Brief paper: Navigation of a unicycle-like mobile robot for environmental extremum seeking
Automatica (Journal of IFAC)
Brief paper: Range-only measurements based target following for wheeled mobile robots
Automatica (Journal of IFAC)
Vector Field Path Following for Miniature Air Vehicles
IEEE Transactions on Robotics
Adaptive Neural Control of a Hypersonic Vehicle in Discrete Time
Journal of Intelligent and Robotic Systems
Iterative Consensus for a Class of Second-order Multi-agent Systems
Journal of Intelligent and Robotic Systems
Journal of Intelligent and Robotic Systems
Cooperative Control of Multiple UAVs for Moving Source Seeking
Journal of Intelligent and Robotic Systems
Journal of Intelligent and Robotic Systems
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This paper considers the problem of unknown scalar field source seeking using multiple UAVs subject to input constraints. In this problem, each UAV can only measure the scalar field value at its current location. In order to seek the scalar field source, cooperation of multiple UAVs is carried out by adopting a leader-follower formation strategy. A least squares method is introduced to estimate the gradient of the scalar field at the leader UAV location based on the measurements of all UAVs. By using the estimated gradient, this paper proposes a guidance law for the heading of the leader UAV, and a sliding mode based heading rate controller is designed for the leader UAV to follow the desired heading angle. Furthermore, a heading rate controller is developed for each follower UAV to achieve circular formation around the leader UAV. Finally, simulation results are provided to demonstrate the effectiveness of the proposed approach.