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This paper discusses possible behaviours for single and multiple AUVs in bistatic and multistatic active sonar configurations respectively. With a mixture of theoretical exposition, simulation and actual sea trial results the possibility of making a mobile networked system which behaves in an optimal manner is discussed. For a single AUV it is shown that an information theoretic approach yields a...
This work proposes a control algorithm to stabilize a circular formation of AUVs tracking a time-varying center. We also consider the problem of uniform distribution of all the agents along the circle from two approaches: all-to-all and limited communication. We tackle with this communication constraint using a cooperative control strategy which includes the Laplacian matrix of the communication graph...
In order to resolve the formation tracking problem of cooperative control of multiple Autonomous Underwater Vehicles (AUVs), a variable structure control law was proposed to keep the AUVs track along the predefined trajectory by minimizing the cross track error, which is calculated from the line-of-sight angle. Furthermore, a mathematical model for the formation based on leader-follower was established...
This paper describes a general framework for the study of multiple vehicle, time-coordinated path following (TC-PF) control problems. An example is the situation where a group of vehicles is tasked to maneuver and arrive at pre-assigned final positions at the same time in a collision-free manner, while reducing some optimality criterion. The time of arrival is not fixed a priori, and the vehicles...
In this paper, we investigate the leader-follower formation control of underactuated autonomous underwater vehicles (AUVs). By using position measurements from the leader, we design a virtual vehicle such that the trajectory of the virtual vehicle converges to the reference trajectory of the follower. A position tracking control is designed for the follower to track the virtual vehicle using Lyapunov...
This paper gives an overview of the AUV-framework, a simulation environment for the evaluation of concepts regarding AUVs. An infrastructure of functionalities (maps, interface to kinematics, communication between multiple AUVs) supports the development of autonomous control.
In this paper, in order to complete multitask underwater, we will propose a kind of novel underwater multi-microrobot system which is consist of a mother submarine and several microrobots with ICPF (ionic conducting polymer film) actuators. Then we simply design the structure and close-loop control system of the microrobot system, study the mission planning and coordinate motion with the formation...
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