{"id":57850,"date":"2026-05-26T09:27:03","date_gmt":"2026-05-26T07:27:03","guid":{"rendered":"https:\/\/www.nae.fr\/2026\/05\/26\/a-3d-uav-path-planning-algorithm-based-on-bidirectional-rrt-with-adaptive-directional-sampling-and-cooperative-dual-tree-expansion\/"},"modified":"2026-05-26T09:27:03","modified_gmt":"2026-05-26T07:27:03","slug":"a-3d-uav-path-planning-algorithm-based-on-bidirectional-rrt-with-adaptive-directional-sampling-and-cooperative-dual-tree-expansion","status":"publish","type":"post","link":"https:\/\/www.nae.fr\/en\/2026\/05\/26\/a-3d-uav-path-planning-algorithm-based-on-bidirectional-rrt-with-adaptive-directional-sampling-and-cooperative-dual-tree-expansion\/","title":{"rendered":"A 3D UAV Path Planning Algorithm Based on Bidirectional RRT* with Adaptive Directional Sampling and Cooperative Dual-Tree Expansion"},"content":{"rendered":"<blockquote>\n<div class=\"summary\">\n<div class=\"crayon article-chapo-51727 article__chapo\">\n\nUAV path planning in complex three-dimensional obstacle environments requires a balance between search efficiency and flight feasibility. However, existing RRT*-based methods often fail to satisfy this requirement, as their random sampling lacks directional guidance and makes limited use of environmental information. To this end, this paper proposes an environment-aware cooperative bidirectional RRT* algorithm (EAC-Bi-RRT*). In the sampling stage, the sampling probability of each direction is adaptively adjusted according to the obstacle distribution across 26 directional sectors and the relative goal orientation, so that the search receives stronger directional guidance. During bidirectional expansion, the two trees are assigned leader and follower roles according to the local expandability on the start and goal sides, and their cooperative search is combined with an environment-adaptive step size and a climbing-angle constraint to balance search efficiency and flight reachability.\n\n<\/div>\n<\/div><\/blockquote>\nPour en savoir plus :\u00a0<a href=\"https:\/\/www.mdpi.com\/2076-3417\/16\/10\/5065\" target=\"_blank\" rel=\"noopener\">A 3D UAV Path Planning Algorithm Based on Bidirectional RRT* with Adaptive Directional Sampling and Cooperative Dual-Tree Expansion<\/a>","protected":false},"excerpt":{"rendered":"<p>UAV path planning in complex three-dimensional obstacle environments requires a balance between search efficiency and flight feasibility. However, existing RRT*-based methods often fail to satisfy this requirement, as their random sampling lacks directional guidance and makes limited use of environmental information. To this end, this paper proposes an environment-aware cooperative bidirectional RRT* algorithm (EAC-Bi-RRT*). In [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":55241,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[34,16],"tags":[35,44,33],"class_list":["post-57850","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-innovation-et-technologique","category-rti","tag-actualites","tag-developpement-des-systemes-intelligents","tag-drones"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.8 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>A 3D UAV Path Planning Algorithm Based on Bidirectional RRT* with Adaptive Directional Sampling and Cooperative Dual-Tree Expansion - NAE<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.nae.fr\/en\/2026\/05\/26\/a-3d-uav-path-planning-algorithm-based-on-bidirectional-rrt-with-adaptive-directional-sampling-and-cooperative-dual-tree-expansion\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"A 3D UAV Path Planning Algorithm Based on Bidirectional RRT* with Adaptive Directional Sampling and Cooperative Dual-Tree Expansion - NAE\" \/>\n<meta property=\"og:description\" content=\"UAV path planning in complex three-dimensional obstacle environments requires a balance between search efficiency and flight feasibility. However, existing RRT*-based methods often fail to satisfy this requirement, as their random sampling lacks directional guidance and makes limited use of environmental information. To this end, this paper proposes an environment-aware cooperative bidirectional RRT* algorithm (EAC-Bi-RRT*). In [&hellip;]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.nae.fr\/en\/2026\/05\/26\/a-3d-uav-path-planning-algorithm-based-on-bidirectional-rrt-with-adaptive-directional-sampling-and-cooperative-dual-tree-expansion\/\" \/>\n<meta property=\"og:site_name\" content=\"NAE\" \/>\n<meta property=\"article:published_time\" content=\"2026-05-26T07:27:03+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.nae.fr\/wp-content\/uploads\/2026\/06\/logo-mdpi.png\" \/>\n\t<meta property=\"og:image:width\" content=\"276\" \/>\n\t<meta property=\"og:image:height\" content=\"182\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\n<meta name=\"author\" content=\"adminwa\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"adminwa\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"1 minute\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/www.nae.fr\\\/2026\\\/05\\\/26\\\/a-3d-uav-path-planning-algorithm-based-on-bidirectional-rrt-with-adaptive-directional-sampling-and-cooperative-dual-tree-expansion\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.nae.fr\\\/2026\\\/05\\\/26\\\/a-3d-uav-path-planning-algorithm-based-on-bidirectional-rrt-with-adaptive-directional-sampling-and-cooperative-dual-tree-expansion\\\/\"},\"author\":{\"name\":\"adminwa\",\"@id\":\"https:\\\/\\\/www.nae.fr\\\/#\\\/schema\\\/person\\\/3d658e930f01449b7195ce4a78fcfc1e\"},\"headline\":\"A 3D UAV Path Planning Algorithm Based on Bidirectional RRT* with Adaptive Directional Sampling and Cooperative Dual-Tree Expansion\",\"datePublished\":\"2026-05-26T07:27:03+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/www.nae.fr\\\/2026\\\/05\\\/26\\\/a-3d-uav-path-planning-algorithm-based-on-bidirectional-rrt-with-adaptive-directional-sampling-and-cooperative-dual-tree-expansion\\\/\"},\"wordCount\":174,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\\\/\\\/www.nae.fr\\\/#organization\"},\"image\":{\"@id\":\"https:\\\/\\\/www.nae.fr\\\/2026\\\/05\\\/26\\\/a-3d-uav-path-planning-algorithm-based-on-bidirectional-rrt-with-adaptive-directional-sampling-and-cooperative-dual-tree-expansion\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/www.nae.fr\\\/wp-content\\\/uploads\\\/2026\\\/06\\\/logo-mdpi.png\",\"keywords\":[\"Actualit\u00e9s\",\"D\u00e9veloppement des syst\u00e8mes intelligents\",\"Drones\"],\"articleSection\":[\"Innovation et technologique\",\"RTI\"],\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\\\/\\\/www.nae.fr\\\/2026\\\/05\\\/26\\\/a-3d-uav-path-planning-algorithm-based-on-bidirectional-rrt-with-adaptive-directional-sampling-and-cooperative-dual-tree-expansion\\\/#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/www.nae.fr\\\/2026\\\/05\\\/26\\\/a-3d-uav-path-planning-algorithm-based-on-bidirectional-rrt-with-adaptive-directional-sampling-and-cooperative-dual-tree-expansion\\\/\",\"url\":\"https:\\\/\\\/www.nae.fr\\\/2026\\\/05\\\/26\\\/a-3d-uav-path-planning-algorithm-based-on-bidirectional-rrt-with-adaptive-directional-sampling-and-cooperative-dual-tree-expansion\\\/\",\"name\":\"A 3D UAV Path Planning Algorithm Based on Bidirectional RRT* with Adaptive Directional Sampling and Cooperative Dual-Tree Expansion - 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