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- W4319663818 abstract "The Rapidly Exploring Random Tree Star (RRT*) is a probabilistically complete algorithm. It is recognized as a better path planning algorithm, but its path quality and path planning speed still have room for improvement. This paper proposes an improved RRT* algorithm based on alternative paths and triangular area sampling (ATS-RRT*). The alternative paths strategy generates multiple initial paths based on whether the sample points can communicate with the target points and set the path with the smallest cost as the final initial path, which can speed up the initial path planning and improve the initial path finding rate. The triangular area sampling strategy combines every three adjacent nodes to generate some triangle areas and corresponding half-triangle areas. The path quality can be improved quickly by limiting the sampling in these triangle areas. In addition, the direct connection strategy with triangle nodes and the tabu table using in the Rewire process also speeds up the algorithm. Experiments show that the speed of finding the initial path and the success rate of finding the suboptimal path are improved by 2.3 and 1.45 times respectively compared with RRT*, Quick-RRT*, and Informed + Quick-RRT*." @default.
- W4319663818 created "2023-02-10" @default.
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- W4319663818 date "2023-02-09" @default.
- W4319663818 modified "2023-09-24" @default.
- W4319663818 title "ATS-RRT*: an improved RRT* algorithm based on alternative paths and triangular area sampling" @default.
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- W4319663818 doi "https://doi.org/10.1080/01691864.2023.2174817" @default.
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