Article(id=1263818964581364243, tenantId=1146029695717560320, journalId=1263530845441638439, issueId=1263818962224165389, articleNumber=null, orderNo=null, doi=10.19693/j.issn.1673-3185.04560, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1750003200000, receivedDateStr=2025-06-16, revisedDate=1760284800000, revisedDateStr=2025-10-13, acceptedDate=null, acceptedDateStr=null, onlineDate=1779247521777, onlineDateStr=2026-05-20, pubDate=1777478400000, pubDateStr=2026-04-30, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1779247521777, onlineIssueDateStr=2026-05-20, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1779247521777, creator=13041195026, updateTime=1779247521777, updator=13041195026, issue=Issue{id=1263818962224165389, tenantId=1146029695717560320, journalId=1263530845441638439, year='2026', volume='21', issue='2', pageStart='1', pageEnd='444', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1779247521215, creator=13041195026, updateTime=1779247861438, updator=13041195026, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1263820389638070544, tenantId=1146029695717560320, journalId=1263530845441638439, issueId=1263818962224165389, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1263820389638070545, tenantId=1146029695717560320, journalId=1263530845441638439, issueId=1263818962224165389, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=101, endPage=111, ext={EN=ArticleExt(id=1263818965319561749, articleId=1263818964581364243, tenantId=1146029695717560320, journalId=1263530845441638439, language=EN, title=A path planning method for adaptive formation reshaping of multi-UUVs based on affine transformation, columnId=1263818964086436367, journalTitle=Chinese Journal of Ship Research, columnName=Overall Design Technology of Unmanned Underwater Systems, runingTitle=null, highlight=null, articleAbstract=
Objective To address the challenge of simultaneously maintaining formation integrity and enabling flexible obstacle avoidance for multi-unmanned underwater vehicle (multi-UUV) formations in complex underwater environments, this paper proposes a global path planning method that supports adaptive formation reshaping.
Method The proposed method is built upon an affine transformation framework that maps the cooperative path planning problem of the multi-UUV system into a two-dimensional affine parameter space. First, a front-end path search is conducted using an improved rapidly-exploring random tree* (RRT*) algorithm. By integrating fast exploration and iterative optimization phases, a weighted k-dimensional (KD) tree, a hybrid sampling mechanism, and adaptive tuning of sampling parameters, this algorithm efficiently generates an initial sequence of affine states. Subsequently, a B-spline-based back-end optimizer employs a gradient descent method to minimize a comprehensive objective function that accounts for trajectory smoothness, UUV kinematic feasibility, environmental collision safety, and the cost associated with adaptive formation scaling. The optimization process yields a continuous and smooth trajectory of affine parameters that satisfies multiple constraints.
Results Lake experiments demonstrate that the proposed planning method can generate safe and feasible formation paths. It successfully guided the multi-UUV formation through a simulated narrow obstacle region, while the actual velocities and accelerations of the UUVs remained within the predefined feasibility constraints.
Conclusion The proposed global planning method, based on affine transformation, effectively generates safe and feasible paths for multi-UUV formations navigating complex obstacle environments by enabling adaptive formation reshaping. This method significantly enhances the autonomy and environmental adaptability of marine unmanned vehicles, and holds great value for advancing the development and practical application of marine unmanned systems technology.
, correspAuthors=Lei QIAO, authorNote=null, correspAuthorsNote=null, copyrightStatement=Copyright © 2026 Chinese Journal of Ship Research. All rights reserved., copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=null, magXml=null, pdfUrl=null, pdf=null, pdfFileSize=null, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=null, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=null, mapNumber=null, authorCompany=null, fund=null, authors=null, authorsList=Kai GUO, Mingqi YAO, Lei QIAO), CN=ArticleExt(id=1263819138510762162, articleId=1263818964581364243, tenantId=1146029695717560320, journalId=1263530845441638439, language=CN, title=基于仿射变换的多UUV自适应队形变换路径规划方法, columnId=1263818964476506641, journalTitle=中国舰船研究, columnName=水下无人系统总体设计技术, runingTitle=null, highlight=null, articleAbstract=
目的 针对多无人潜航器(UUV)编队在复杂水下环境中面临的编队保持与灵活避障难以同时实现的难题,提出一种能够自适应队形变换的全局路径规划方法。
方法 基于仿射变换框架,将多UUV系统的协同路径规划问题映射至二维平面仿射参数空间进行求解。首先,采用一种改进的快速搜索随机树*(RRT*)算法进行前端路径搜索,该算法通过整合快速探索与迭代优化阶段、加权KD(k-dimensional)树、混合采样机制以及自适应采样参数调整,实现初始仿射状态序列的高效生成;然后,利用基于B样条曲线的后端优化器,采用梯度下降法最小化一个综合考虑轨迹平滑性、UUV运动学可行性、环境碰撞安全性以及自适应编队缩放代价的目标函数,优化得到连续光滑且满足多重约束的仿射参数轨迹。
结果 湖上试验结果表明,所提规划方法能够生成安全、可行的编队路径,能成功引导多UUV编队穿越模拟的狭窄障碍区域,且UUV的实际速度和加速度均满足设定的可行性约束。
结论 所提的基于仿射变换的全局规划方法能够通过自适应队形变换为航行于复杂障碍场景下的多UUV编队提供安全可行的编队路径,实现多UUV编队的安全航行,同时,也能显著提升海洋无人潜航器的自主性与环境适应性,对推动海洋无人装备技术的发展和实际应用具有积极意义。
, correspAuthors=乔磊, authorNote=null, correspAuthorsNote=
* 乔磊
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, authorsList=郭凯, 姚明启, 乔磊)}, authors=[Author(id=1263819138959552701, tenantId=1146029695717560320, journalId=1263530845441638439, articleId=1263818964581364243, orderNo=0, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=guokai2023@sjtu.edu.cn, emailSecond=null, emailThird=null, correspondingAuthor=0, authorType=1, ext={EN=AuthorExt(id=1263819139060216001, tenantId=1146029695717560320, journalId=1263530845441638439, articleId=1263818964581364243, authorId=1263819138959552701, language=EN, stringName=Kai GUO, firstName=Kai, middleName=null, lastName=GUO, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=null, address=School of Ocean and Civil Engineering, Shanghai Jiao Tong University, Shanghai 200240, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1263819139215405251, tenantId=1146029695717560320, journalId=1263530845441638439, articleId=1263818964581364243, authorId=1263819138959552701, language=CN, stringName=郭凯, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=null, address=上海交通大学 船舶海洋与建筑工程学院,上海 200240, bio={"content":"
郭凯,男,2001年生,硕士生。研究方向:海洋机器人协同编队规划。E-mail:guokai2023@sjtu.edu.cn
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郭凯,男,2001年生,硕士生。研究方向:海洋机器人协同编队规划。E-mail:guokai2023@sjtu.edu.cn
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*, address=School of Ocean and Civil Engineering, Shanghai Jiao Tong University, Shanghai 200240, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1263819140217843922, tenantId=1146029695717560320, journalId=1263530845441638439, articleId=1263818964581364243, authorId=1263819139932631245, language=CN, stringName=乔磊, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
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乔磊,男,1989年生,博士,副教授,博士生导师。研究方向:海洋智能机器人和无人系统。E-mail:qiaolei@sjtu.edu.cn
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乔磊,男,1989年生,博士,副教授,博士生导师。研究方向:海洋智能机器人和无人系统。E-mail:qiaolei@sjtu.edu.cn
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Robust and fast trajectory tracking control of UUVs with external disturbances[J]. Chinese Journal of Ship Research, 2025, 20(6): 294–303 (in Chinese)., articleTitle=null, refAbstract=null), Reference(id=1263819152888836416, tenantId=1146029695717560320, journalId=1263530845441638439, articleId=1263818964581364243, doi=null, pmid=null, pmcid=null, year=null, volume=null, issue=null, pageStart=null, pageEnd=null, url=null, language=null, rfNumber=16, rfOrder=18, authorNames=null, journalName=null, refType=null, unstructuredReference=LIN Y, LIU Y, ZHANG P P, et al. Safety-first tracker: a trajectory planning framework for omnidirectional robot tracking[C]//2024 IEEE/RSJ International Conference on Intelligent Robots and Systems (IROS). 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This video is supporting material for my recently submitted paper[EB/OL]. (2025-06-15)[2025-06-16]. https://sjtu-mirus.github.io/MIRUS.github.io/research/kai., articleTitle=null, refAbstract=null)], funds=null, companyList=[AuthorCompany(id=1263819138837917880, tenantId=1146029695717560320, journalId=1263530845441638439, articleId=1263818964581364243, xref=null, ext=[AuthorCompanyExt(id=1263819138846306489, tenantId=1146029695717560320, journalId=1263530845441638439, articleId=1263818964581364243, companyId=1263819138837917880, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=School of Ocean and Civil Engineering, Shanghai Jiao Tong University, Shanghai 200240, China), AuthorCompanyExt(id=1263819138858889402, tenantId=1146029695717560320, journalId=1263530845441638439, articleId=1263818964581364243, companyId=1263819138837917880, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=上海交通大学 船舶海洋与建筑工程学院,上海 200240)])], figs=[ArticleFig(id=1263819143707504875, tenantId=1146029695717560320, journalId=1263530845441638439, articleId=1263818964581364243, language=EN, label=Fig.1, caption=
Coordinate system and state of the j-th UUV, figureFileSmall=qlOVnCogmAfLCEYDeCcHtg==, figureFileBig=l809QqDl/XABcxGPU9GQTQ==, tableContent=null), ArticleFig(id=1263819143871082733, tenantId=1146029695717560320, journalId=1263530845441638439, articleId=1263818964581364243, language=CN, label=图1, caption=
第$ j $
个UUV的坐标系和状态, figureFileSmall=qlOVnCogmAfLCEYDeCcHtg==, figureFileBig=l809QqDl/XABcxGPU9GQTQ==, tableContent=null), ArticleFig(id=1263819144194044144, tenantId=1146029695717560320, journalId=1263530845441638439, articleId=1263818964581364243, language=EN, label=Fig.2, caption=
Flowchart of the global formation planning method, figureFileSmall=3ugWTpqdNBA64b7woxkAyw==, figureFileBig=6NB/ZxaqAju9RxpIL5+gOQ==, tableContent=null), ArticleFig(id=1263819144282124530, tenantId=1146029695717560320, journalId=1263530845441638439, articleId=1263818964581364243, language=CN, label=图2, caption=
全局规划方法流程图, figureFileSmall=3ugWTpqdNBA64b7woxkAyw==, figureFileBig=6NB/ZxaqAju9RxpIL5+gOQ==, tableContent=null), ArticleFig(id=1263819144382787828, tenantId=1146029695717560320, journalId=1263530845441638439, articleId=1263818964581364243, language=EN, label=Fig.3, caption=
Four sampling modes, figureFileSmall=lkK+dG3tMGIFdO+jUgsqvw==, figureFileBig=5d3o7b59WhB1k83LeQHt2g==, tableContent=null), ArticleFig(id=1263819144554754294, tenantId=1146029695717560320, journalId=1263530845441638439, articleId=1263818964581364243, language=CN, label=图3, caption=
4种采样模式, figureFileSmall=lkK+dG3tMGIFdO+jUgsqvw==, figureFileBig=5d3o7b59WhB1k83LeQHt2g==, tableContent=null), ArticleFig(id=1263819144676389112, tenantId=1146029695717560320, journalId=1263530845441638439, articleId=1263818964581364243, language=EN, label=Fig.4, caption=
Circumscribed circles at maximum and minimum scaling factors, figureFileSmall=iE9P+auOgq3w542vcNoXbA==, figureFileBig=/DGCnsPgf6aHQDomf+zYYg==, tableContent=null), ArticleFig(id=1263819144777052409, tenantId=1146029695717560320, journalId=1263530845441638439, articleId=1263818964581364243, language=CN, label=图4, caption=
最大缩放和最小缩放尺度时的外接圆, figureFileSmall=iE9P+auOgq3w542vcNoXbA==, figureFileBig=/DGCnsPgf6aHQDomf+zYYg==, tableContent=null), ArticleFig(id=1263819144852549883, tenantId=1146029695717560320, journalId=1263530845441638439, articleId=1263818964581364243, language=EN, label=Fig.5, caption=
Experimental equipment, figureFileSmall=DBoKWYLTy+yGsRFkry8RAQ==, figureFileBig=xVN34bLADwP0sGC5Ok/eIw==, tableContent=null), ArticleFig(id=1263819144974184701, tenantId=1146029695717560320, journalId=1263530845441638439, articleId=1263818964581364243, language=CN, label=图5, caption=
试验设备, figureFileSmall=DBoKWYLTy+yGsRFkry8RAQ==, figureFileBig=xVN34bLADwP0sGC5Ok/eIw==, tableContent=null), ArticleFig(id=1263819146643517695, tenantId=1146029695717560320, journalId=1263530845441638439, articleId=1263818964581364243, language=EN, label=Fig.6, caption=
Nominal formation configuration, figureFileSmall=O0F3kK/FNEZ78CPWp9smbw==, figureFileBig=SyvEO7KJ/Ahs8OPkvNnF2g==, tableContent=null), ArticleFig(id=1263819146781929729, tenantId=1146029695717560320, journalId=1263530845441638439, articleId=1263818964581364243, language=CN, label=图6, caption=
标称编队构型, figureFileSmall=O0F3kK/FNEZ78CPWp9smbw==, figureFileBig=SyvEO7KJ/Ahs8OPkvNnF2g==, tableContent=null), ArticleFig(id=1263819147025199363, tenantId=1146029695717560320, journalId=1263530845441638439, articleId=1263818964581364243, language=EN, label=Fig.7, caption=
Grid map and ESDF map, figureFileSmall=EFZeZx/+It55G1pgrvhPKQ==, figureFileBig=cmKiG+ocSex2QrvIf7ioBw==, tableContent=null), ArticleFig(id=1263819147125862661, tenantId=1146029695717560320, journalId=1263530845441638439, articleId=1263818964581364243, language=CN, label=图7, caption=
栅格地图与ESDF地图, figureFileSmall=EFZeZx/+It55G1pgrvhPKQ==, figureFileBig=cmKiG+ocSex2QrvIf7ioBw==, tableContent=null), ArticleFig(id=1263819147285246215, tenantId=1146029695717560320, journalId=1263530845441638439, articleId=1263818964581364243, language=EN, label=Fig.8, caption=
Map and planning mission setup, figureFileSmall=Z7tfqg/5QGll+l0t7hZlHQ==, figureFileBig=2fV2/mZC6FILUUk6Gj6TOw==, tableContent=null), ArticleFig(id=1263819147360743689, tenantId=1146029695717560320, journalId=1263530845441638439, articleId=1263818964581364243, language=CN, label=图8, caption=
地图和规划任务设置, figureFileSmall=Z7tfqg/5QGll+l0t7hZlHQ==, figureFileBig=2fV2/mZC6FILUUk6Gj6TOw==, tableContent=null), ArticleFig(id=1263819147478184203, tenantId=1146029695717560320, journalId=1263530845441638439, articleId=1263818964581364243, language=EN, label=Fig.9, caption=
Keyframes of the experimental process, figureFileSmall=pnq0R986B4aUtvNSOWzAcA==, figureFileBig=KeCtlxJ5xGWaIyMraAHpcQ==, tableContent=null), ArticleFig(id=1263819147545293069, tenantId=1146029695717560320, journalId=1263530845441638439, articleId=1263818964581364243, language=CN, label=图9, caption=
试验过程关键帧, figureFileSmall=pnq0R986B4aUtvNSOWzAcA==, figureFileBig=KeCtlxJ5xGWaIyMraAHpcQ==, tableContent=null), ArticleFig(id=1263819147708870926, tenantId=1146029695717560320, journalId=1263530845441638439, articleId=1263818964581364243, language=EN, label=Fig.10, caption=
Desired trajectories and actual trajectories of the actual UUVs in the MAP coordinate system, figureFileSmall=6z0+2Srfxoucew8G+g2ecQ==, figureFileBig=1ndhJzD7NaEeRHJJ+bYgOg==, tableContent=null), ArticleFig(id=1263819147947946255, tenantId=1146029695717560320, journalId=1263530845441638439, articleId=1263818964581364243, language=CN, label=图10, caption=
MAP坐标系下实际UUV的期望轨迹与实际轨迹, figureFileSmall=6z0+2Srfxoucew8G+g2ecQ==, figureFileBig=1ndhJzD7NaEeRHJJ+bYgOg==, tableContent=null), ArticleFig(id=1263819148249936145, tenantId=1146029695717560320, journalId=1263530845441638439, articleId=1263818964581364243, language=EN, label=Fig.11, caption=
Pose tracking errors of the actual UUVs, figureFileSmall=PLpxlj1XrrRAIumJS8djCg==, figureFileBig=iTawvzSSxe6jvu02gjaExQ==, tableContent=null), ArticleFig(id=1263819148371570963, tenantId=1146029695717560320, journalId=1263530845441638439, articleId=1263818964581364243, language=CN, label=图11, caption=
实际UUV的位姿跟踪误差, figureFileSmall=PLpxlj1XrrRAIumJS8djCg==, figureFileBig=iTawvzSSxe6jvu02gjaExQ==, tableContent=null), ArticleFig(id=1263819148484817173, tenantId=1146029695717560320, journalId=1263530845441638439, articleId=1263818964581364243, language=EN, label=Fig.12, caption=
Speed and acceleration curves of the actual UUVs, figureFileSmall=nj/7jCN+gd6C7jAhd07NRQ==, figureFileBig=c7cUk3/MZMEWCSFrbUDW4Q==, tableContent=null), ArticleFig(id=1263819148623229207, tenantId=1146029695717560320, journalId=1263530845441638439, articleId=1263818964581364243, language=CN, label=图12, caption=
实际UUV的速度和加速度曲线, figureFileSmall=nj/7jCN+gd6C7jAhd07NRQ==, figureFileBig=c7cUk3/MZMEWCSFrbUDW4Q==, tableContent=null), ArticleFig(id=1263819148715503897, tenantId=1146029695717560320, journalId=1263530845441638439, articleId=1263818964581364243, language=EN, label=Algorithm 1, caption=
AT−RRT* algorithm
, figureFileSmall=null, figureFileBig=null, tableContent=
| Input: $ {{\boldsymbol{q}}_{{\text{start}}}},{{\boldsymbol{q}}_{{\text{goal}}}} $ |
| Result: $ \{ {{\boldsymbol{q}}_1},{{\boldsymbol{q}}_2}, \cdots ,{{\boldsymbol{q}}_K}\} $ |
| $ {\text{KDTre}}{{\text{e}}_{{\text{cur}}}} $←$ {\text{KDTre}}{{\text{e}}_{{\text{2D}}}} $; |
| reach_goal←false |
| while ($ i \lt {i_{\max }} $and$ t \lt {t_{\max }} $) do |
| if CurPhase == Phase1 then |
| | $ {{\boldsymbol{q}}_{{\text{rand}}}} $←Sample2DState(); |
| else |
| | $ {{\boldsymbol{q}}_{{\text{rand}}}} $←SampleFullState(); |
| $ {{\boldsymbol{q}}_{{\text{near}}}} $←FindNearest(KDTree,$ {{\boldsymbol{q}}_{{\text{rand}}}} $); |
| $ {{\boldsymbol{q}}_{{\text{new}}}} $←Step($ {{\boldsymbol{q}}_{{\text{near}}}},{{\boldsymbol{q}}_{{\text{rand}}}} $); | |
| if IsStateValid($ {{\boldsymbol{q}}_{{\text{new}}}} $) then |
| | $ {{\boldsymbol{q}}_{{\text{cur}}}} $←ChooseParentAndRewire($ {{\boldsymbol{q}}_{{\text{new}}}} $); |
| | $ {\text{KDTre}}{{\text{e}}_{{\text{cur}}}} $.Insert($ {{\boldsymbol{q}}_{{\text{cur}}}} $); | |
| | if IsNearGoal($ {{\boldsymbol{q}}_{{\text{cur}}}} $)&&IsLineFree($ {{\boldsymbol{q}}_{{\text{cur}}}},{{\boldsymbol{q}}_{{\text{goal}}}} $) then |
| | | | $ {\text{C}} $←$ {{\boldsymbol{q}}_{{\text{cur}}}}.{\text{Cost}} $+Cost($ {{\boldsymbol{q}}_{{\text{cur}}}},{{\boldsymbol{q}}_{{\text{goal}}}} $); |
| | | if reach_goal == false then | |
| | | | reach_goal←true; | |
| | | | changePhaseTo2(); | |
| | | | $ {\text{KDTre}}{{\text{e}}_{{\text{cur}}}} $←$ {\text{KDTre}}{{\text{e}}_{5{\text{D}}}} $; |
| | | else | | |
| | | | CheckandUpdateCost($ {\text{C}} $); |
| retrun tracebackFormGoal($ {{\boldsymbol{q}}_{{\text{goal}}}} $) | |
), ArticleFig(id=1263819148841333019, tenantId=1146029695717560320, journalId=1263530845441638439, articleId=1263818964581364243, language=CN, label=算法1, caption=
AT−RRT*算法
, figureFileSmall=null, figureFileBig=null, tableContent=
| Input: $ {{\boldsymbol{q}}_{{\text{start}}}},{{\boldsymbol{q}}_{{\text{goal}}}} $ |
| Result: $ \{ {{\boldsymbol{q}}_1},{{\boldsymbol{q}}_2}, \cdots ,{{\boldsymbol{q}}_K}\} $ |
| $ {\text{KDTre}}{{\text{e}}_{{\text{cur}}}} $←$ {\text{KDTre}}{{\text{e}}_{{\text{2D}}}} $; |
| reach_goal←false |
| while ($ i \lt {i_{\max }} $and$ t \lt {t_{\max }} $) do |
| if CurPhase == Phase1 then |
| | $ {{\boldsymbol{q}}_{{\text{rand}}}} $←Sample2DState(); |
| else |
| | $ {{\boldsymbol{q}}_{{\text{rand}}}} $←SampleFullState(); |
| $ {{\boldsymbol{q}}_{{\text{near}}}} $←FindNearest(KDTree,$ {{\boldsymbol{q}}_{{\text{rand}}}} $); |
| $ {{\boldsymbol{q}}_{{\text{new}}}} $←Step($ {{\boldsymbol{q}}_{{\text{near}}}},{{\boldsymbol{q}}_{{\text{rand}}}} $); | |
| if IsStateValid($ {{\boldsymbol{q}}_{{\text{new}}}} $) then |
| | $ {{\boldsymbol{q}}_{{\text{cur}}}} $←ChooseParentAndRewire($ {{\boldsymbol{q}}_{{\text{new}}}} $); |
| | $ {\text{KDTre}}{{\text{e}}_{{\text{cur}}}} $.Insert($ {{\boldsymbol{q}}_{{\text{cur}}}} $); | |
| | if IsNearGoal($ {{\boldsymbol{q}}_{{\text{cur}}}} $)&&IsLineFree($ {{\boldsymbol{q}}_{{\text{cur}}}},{{\boldsymbol{q}}_{{\text{goal}}}} $) then |
| | | | $ {\text{C}} $←$ {{\boldsymbol{q}}_{{\text{cur}}}}.{\text{Cost}} $+Cost($ {{\boldsymbol{q}}_{{\text{cur}}}},{{\boldsymbol{q}}_{{\text{goal}}}} $); |
| | | if reach_goal == false then | |
| | | | reach_goal←true; | |
| | | | changePhaseTo2(); | |
| | | | $ {\text{KDTre}}{{\text{e}}_{{\text{cur}}}} $←$ {\text{KDTre}}{{\text{e}}_{5{\text{D}}}} $; |
| | | else | | |
| | | | CheckandUpdateCost($ {\text{C}} $); |
| retrun tracebackFormGoal($ {{\boldsymbol{q}}_{{\text{goal}}}} $) | |
), ArticleFig(id=1263819149067825437, tenantId=1146029695717560320, journalId=1263530845441638439, articleId=1263818964581364243, language=EN, label=Tab.1, caption=
State quantities of speed and acceleration for the actual UUVs
, figureFileSmall=null, figureFileBig=null, tableContent=
| UUV | 参数 | 属性 | 数值 |
| UUV05 | 速度/(m∙s−1) | 平均值 | 0.188 9 |
| 标准差 | 0.030 3 |
| 最大值 | 0.267 8 |
| 加速度/(m∙s−2) | 平均值 | 0.092 0 |
| 标准差 | 0.149 7 |
| 最大值 | 0.923 8 |
| UUV06 | 速度/(m∙s−1) | 平均值 | 0.190 3 |
| 标准差 | 0.033 0 |
| 最大值 | 0.269 5 |
| 加速度/(m∙s−2) | 平均值 | 0.092 0 |
| 标准差 | 0.145 9 |
| 最大值 | 0.895 5 |
| UUV07 | 速度/(m∙s−1) | 平均值 | 0.189 9 |
| 标准差 | 0.026 2 |
| 最大值 | 0.279 7 |
| 加速度/(m∙s−1) | 平均值 | 0.089 0 |
| 标准差 | 0.139 2 |
| 最大值 | 0.073 9 |
), ArticleFig(id=1263819149403369759, tenantId=1146029695717560320, journalId=1263530845441638439, articleId=1263818964581364243, language=CN, label=表1, caption=
实际UUV的速度和加速度状态量
, figureFileSmall=null, figureFileBig=null, tableContent=
| UUV | 参数 | 属性 | 数值 |
| UUV05 | 速度/(m∙s−1) | 平均值 | 0.188 9 |
| 标准差 | 0.030 3 |
| 最大值 | 0.267 8 |
| 加速度/(m∙s−2) | 平均值 | 0.092 0 |
| 标准差 | 0.149 7 |
| 最大值 | 0.923 8 |
| UUV06 | 速度/(m∙s−1) | 平均值 | 0.190 3 |
| 标准差 | 0.033 0 |
| 最大值 | 0.269 5 |
| 加速度/(m∙s−2) | 平均值 | 0.092 0 |
| 标准差 | 0.145 9 |
| 最大值 | 0.895 5 |
| UUV07 | 速度/(m∙s−1) | 平均值 | 0.189 9 |
| 标准差 | 0.026 2 |
| 最大值 | 0.279 7 |
| 加速度/(m∙s−1) | 平均值 | 0.089 0 |
| 标准差 | 0.139 2 |
| 最大值 | 0.073 9 |
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