TY - GEN N2 - A Collision Avoidance (CA) system with collision avoidance algorithms is critical to Autonomous Surface Vehicles (ASV). This paper explores a hybrid collision avoidance method based on an improved hybrid A* algorithm for inland waterway scenarios. This method uses discrete control actions, such as heading and speed setpoints, as input and generates a modified local path and control setpoints. A pre-processing method, namely a collision velocity check, is used to speed up the computation progress. Multiple aspects, including safety, path length, sailing time, rule compliance, and smoothness, are considered in finding the optimal collision-free path. We implemented the method under the Robot Operation System (ROS) architecture and conducted real-ship experiments for validation. The results show the effectiveness of this method. DO - 10.24868/10683 DO - doi AB - A Collision Avoidance (CA) system with collision avoidance algorithms is critical to Autonomous Surface Vehicles (ASV). This paper explores a hybrid collision avoidance method based on an improved hybrid A* algorithm for inland waterway scenarios. This method uses discrete control actions, such as heading and speed setpoints, as input and generates a modified local path and control setpoints. A pre-processing method, namely a collision velocity check, is used to speed up the computation progress. Multiple aspects, including safety, path length, sailing time, rule compliance, and smoothness, are considered in finding the optimal collision-free path. We implemented the method under the Robot Operation System (ROS) architecture and conducted real-ship experiments for validation. The results show the effectiveness of this method. AD - RH Marine / KU Leuven AD - RH Marine Netherlands BV AD - MARIN AD - Katholieke Universiteit Leuven AD - Katholieke Universiteit Leuven T1 - Real-time Collision Avoidance Algorithm for Inland Waterway Sailing Scenarios - Experiment Validation DA - 2022-08-01 AU - Miao, T AU - El Amam, E AU - de Kruif, B AU - Slaets, P AU - Pissoort, D L1 - https://library.imarest.org/record/10683/files/INEC_2022_paper_28.pdf JF - Conference Proceedings of INEC VL - INEC 2022 PY - 2022-08-01 ID - 10683 L4 - https://library.imarest.org/record/10683/files/INEC_2022_paper_28.pdf KW - Autonomous Surface Vehicles KW - Collision Avoidance KW - Path Planning KW - Hybrid A* TI - Real-time Collision Avoidance Algorithm for Inland Waterway Sailing Scenarios - Experiment Validation Y1 - 2022-08-01 L2 - https://library.imarest.org/record/10683/files/INEC_2022_paper_28.pdf LK - https://www.imarest.org/events/category/categories/imarest-event/international-naval-engineering-conference-and-exhibition-2022 LK - https://library.imarest.org/record/10683/files/INEC_2022_paper_28.pdf UR - https://www.imarest.org/events/category/categories/imarest-event/international-naval-engineering-conference-and-exhibition-2022 UR - https://library.imarest.org/record/10683/files/INEC_2022_paper_28.pdf ER -