Systems Engineering and Electronics ›› 2023, Vol. 45 ›› Issue (7): 2170-2182.doi: 10.12305/j.issn.1001-506X.2023.07.28

• Guidance, Navigation and Control • Previous Articles     Next Articles

3D path planning for AUV based on improved whaleoptimization algorithm

Guangqiang LI, Wenchao DONG, Daqing ZHU, Yue YU, Hao CHEN, Shuanghe YU   

  1. School of Marine Electrical Engineering, Dalian Maritime University, Dalian 116026, China
  • Received:2022-05-09 Online:2023-06-30 Published:2023-07-11
  • Contact: Guangqiang LI

Abstract:

Autonomous underwater vehicle (AUV) have become one kind of the most effective equipment for multiple underwater operations in different fields. A solution method for AUV global path planning is proposed based on improved whale optimization algorithm. Firstly, for the modelling of the problem, in the process of environment modelling, in view of the complexity of waypoint setting in 3D space, a modelling method based on the connected rapidly-exploring random tree (RRT-Connect) is presented; in the mathematical optimization model, three evaluation criteria including the path smoothness, the diving gradient and the navigation time are integrated, and the relevant constraints caused by strong currents and obstacles are considered. Then for the above models, an improved whale optimization algorithm is proposed. The optimization idea based on the linkage structure of the problem is introduced. And families of key subsets and effective subsets are constructed online according to it, which are adopted to discover the linkage sets with high criticality and effectiveness in real time, and increase the probability of their reuse rate, so as to improve the convergence speed and accuracy of proposed algorithm. In addition, to take advantage of historical evolution information more comprehensively and effectively, the method of constructing individual leaders with multiple learning sets and the corresponding joint guidance strategies are designed to further enhance the overall performance of the algorithm. Finally, according to the practical seabed terrain information and different ocean current models, several path planning scenarios are set up for simulation experiments. The results show that compared with other whale optimization algorithms and classical intelligent algorithms presented in references, the proposed algorithm is more superior in terms of solving accuracy, stability and convergence speed, which better meet the requirements of AUV path planning.

Key words: path planning, whale optimization algorithm (WOA), autonomous underwater vehicle (AUV), environment modeling

CLC Number: 

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