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Although multi-robot formation is studied by many researchers, formation process in dynamic environment is still a tough problem. Compared with nature systems, cellular automaton is used in formation problem and has been tested in some situations. In this paper, we proposed a new flexible formation method using two kinds of cellular automaton, the robot cellular and the environment cellular are both...
Rigid formation of Multi-robot system has been studied in many papers. But the fixed shape is not suitable in many cases. We believe the goal of formation is to accomplish a given task better. So whether the shape is rigid or precise is not the most important thing in many cases. Here the concept of flexible formation is given. Such formation is virtual and the shape is varying. It could adapt to...
A unified formation control policy is presented. From the trajectory and shape aspects, the group formation control problem is decoupled into the desired trajectory tracking problem of each individual, and the consistency of stability and optimality between these two problems are proved. The overall criterion and decomposed criterions to evaluate the formation performance are designed. The decomposed...
Formation control in uncertain environment is studied, including the control process noise and measurement noise. The decoupled Kalman filter based on discrete model is established. And the control performances based on absolute positioning sensor, relative positioning sensor or fusion of these two kinds of sensor are studied. Simulations show that absolute positioning sensor could assure the formation...
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