Distributed coordinated tracking control of multiple unmanned surface vehicles under complex marine environments
Distributed coordinated tracking control of multiple unmanned surface vehicles under complex marine environments
复制标题
复杂海洋环境下多无人水面艇分布式协调跟踪控制
DOI：
10.1016/j.oceaneng.2020.107328
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发表时间：
2020-06
影响因子：
5
通讯作者：
Rubo Zhang
中科院分区：
文献类型：
--
作者：
Xiao Liang;Xingru Qu;Yuanhang Hou;Ye Li;Rubo Zhang
In this paper, a coordinated tracking strategy with swarm center identification, self-organized aggregation, collision avoidance and distributed controller design for multiple unmanned surface vehicles (USVs) under complex marine environments including both unknown dynamics and external disturbances is presented. For self-organized aggregation and collision avoidance, a velocity feedback control with the repulsive potential function is employed for each vehicle to match surge velocity and heading angle with its neighbors. To keep all vehicles connected in a group, a virtual swarm center (SC) is simultaneously designed and identified using a consensus algorithm, thereby USVs have global knowledge of the desired trajectory. Aiming to precisely estimate completely unknown dynamics together with external disturbances, a distributed tracking controller based wavelet neural network (WNN) is further proposed within the coordinated tracking strategy. Simulation studies and comprehensive comparisons with conventional NN demonstrate excellent performance of the swarm tracking strategy and superiority of WNN scheme.
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