Article(id=1172525473570636561, tenantId=1146029695717560320, journalId=1152916057816748034, issueId=1172525471628673796, articleNumber=null, orderNo=null, doi=10.3969/j.issn.2095‒1469.2025.04.11, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1732377600000, receivedDateStr=2024-11-24, revisedDate=1739462400000, revisedDateStr=2025-02-14, acceptedDate=null, acceptedDateStr=null, onlineDate=1757481457369, onlineDateStr=2025-09-10, pubDate=1752940800000, pubDateStr=2025-07-20, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1757481457369, onlineIssueDateStr=2025-09-10, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1757481457369, creator=13701087609, updateTime=1757481457369, updator=13701087609, issue=Issue{id=1172525471628673796, tenantId=1146029695717560320, journalId=1152916057816748034, year='2025', volume='15', issue='4', pageStart='427', pageEnd='619', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=1, specialIssue=null, createTime=1757481456904, creator=13701087609, updateTime=1757489711911, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1172560095704662894, tenantId=1146029695717560320, journalId=1152916057816748034, issueId=1172525471628673796, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1172560095704662895, tenantId=1146029695717560320, journalId=1152916057816748034, issueId=1172525471628673796, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=539, endPage=553, ext={EN=ArticleExt(id=1172525473734214419, articleId=1172525473570636561, tenantId=1146029695717560320, journalId=1152916057816748034, language=EN, title=Research on SLAM and Path Planning Algorithms for Indoor Intelligent Vehicles Based on Improved Gmapping and DWA Algorithms, columnId=1165621800806396415, journalTitle=Chinese Journal of Automotive Engineering, columnName=Intelligent & Connected Technologies Section/Editor in Chief:GAO Zhenhai, runingTitle=null, highlight=null, articleAbstract=
To address the rapid particle convergence and the decrease of particle diversity during map construction, as well as the tendency of the traditional DWA to become trapped in local optima during the path planning, the paper proposes two improvements for intelligent vehicles. The first improvement is an enhanced Gmapping algorithm based on K-Means hierarchical re-sampling. The particle set is clustered into high-, medium- and low- weight groups by using K-Means algorithm, and the weights are adjusted to slow down the decline in particle diversity, thereby improving mapping accuracy. The second improvement is an enhanced DWA path planning algorithm that fuses A* global guidance with turn-stability awareness. The adaptive velocity evaluation function considering the angular velocity magnitude, and a separate angular velocity evaluation function are added. The A* global path turning points serve as the key points to integrate the A* and DWA algorithms. Together, these two efforts improve the global optimization ability of the DWA algorithm. The simulation and real vehicle testing results show that the improved Gmapping algorithm increases the average number of effective particles by 4.6% during grid-map construction. The improved DWA algorithm reduces the number of global path turns by 67% and the search nodes by 37.5% under the set scenario, effectively improving the turning stability of intelligent vehicles.
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针对智能车建图时常出现粒子的快速收敛、粒子多样性下降以及传统DWA算法常出现陷入局部最优解问题,提出基于K-Means分层重采样的改进Gmapping算法及基于融合A*和考虑转弯稳定性的改进DWA路径规划算法。改进Gmapping算法通过K-Means算法,将粒子集合划分为高、中、低权重3类粒子集合,结合合理的粒子权重设置,延缓粒子多样性衰退以提高建图准确性。通过增加考虑角速度大小的自适应速度评价函数和角速度评价函数,将A*全局路径转折点作为关键点,并融合A*与DWA算法以提高DWA算法全局寻优能力。仿真和实车试验结果表明,改进Gmapping算法在构建栅格地图时,平均有效粒子数提高4.6%,在设定场景下,改进DWA算法使智能车全局路径转折次数减少67%、搜索节点减少37.5%,有效提高智能车转弯稳定性。
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类别4试验的建图结果, figureFileSmall=3hCSCwre1GfOY+GidRvNhw==, figureFileBig=NiouFnj8b/mKXdMliFDuDA==, tableContent=null), ArticleFig(id=1175523159970296342, tenantId=1146029695717560320, journalId=1152916057816748034, articleId=1172525473570636561, language=EN, label=null, caption=null, figureFileSmall=7jI75GNsTm/Ah6Zqxsx9VA==, figureFileBig=VB0bDRPBDsTKeTYfieepuA==, tableContent=null), ArticleFig(id=1175523160020627991, tenantId=1146029695717560320, journalId=1152916057816748034, articleId=1172525473570636561, language=CN, label=图6, caption=
不同Gmapping算法建图时有效粒子数变化趋势, figureFileSmall=7jI75GNsTm/Ah6Zqxsx9VA==, figureFileBig=VB0bDRPBDsTKeTYfieepuA==, tableContent=null), ArticleFig(id=1175523160075153944, tenantId=1146029695717560320, journalId=1152916057816748034, articleId=1172525473570636561, language=EN, label=null, caption=null, figureFileSmall=uv4H9OXJ+2HIx0/pew8u3g==, figureFileBig=YKjwyn4EH7/fDKFPv2Fwag==, tableContent=null), ArticleFig(id=1175523160133874201, tenantId=1146029695717560320, journalId=1152916057816748034, articleId=1172525473570636561, language=CN, label=图7, caption=
轨迹差值, figureFileSmall=uv4H9OXJ+2HIx0/pew8u3g==, figureFileBig=YKjwyn4EH7/fDKFPv2Fwag==, tableContent=null), ArticleFig(id=1175523160184205850, tenantId=1146029695717560320, journalId=1152916057816748034, articleId=1172525473570636561, language=EN, label=null, caption=null, figureFileSmall=ytuuPMJ/6qmkx94aLhVrxg==, figureFileBig=hoHTEnMNzURjIbRetc2nyQ==, tableContent=null), ArticleFig(id=1175523160242926107, tenantId=1146029695717560320, journalId=1152916057816748034, articleId=1172525473570636561, language=CN, label=图8, caption=
最优粒子权重变化趋势, figureFileSmall=ytuuPMJ/6qmkx94aLhVrxg==, figureFileBig=hoHTEnMNzURjIbRetc2nyQ==, tableContent=null), ArticleFig(id=1175523160305840668, tenantId=1146029695717560320, journalId=1152916057816748034, articleId=1172525473570636561, language=EN, label=null, caption=null, figureFileSmall=FPBt2D9K+9wzA6RshRLsJA==, figureFileBig=wpzWj1yMMQkJOT69HNw4sg==, tableContent=null), ArticleFig(id=1175523160364560925, tenantId=1146029695717560320, journalId=1152916057816748034, articleId=1172525473570636561, language=CN, label=图9, caption=
轨迹图, figureFileSmall=FPBt2D9K+9wzA6RshRLsJA==, figureFileBig=wpzWj1yMMQkJOT69HNw4sg==, tableContent=null), ArticleFig(id=1175523160423281182, tenantId=1146029695717560320, journalId=1152916057816748034, articleId=1172525473570636561, language=EN, label=null, caption=null, figureFileSmall=luTlH3g4mU9fUsGGkgncyw==, figureFileBig=Ki5wuE6jGviORBIhD/N9FA==, tableContent=null), ArticleFig(id=1175523160469418527, tenantId=1146029695717560320, journalId=1152916057816748034, articleId=1172525473570636561, language=CN, label=图10, caption=
A*算法节点扩展模型, figureFileSmall=luTlH3g4mU9fUsGGkgncyw==, figureFileBig=Ki5wuE6jGviORBIhD/N9FA==, tableContent=null), ArticleFig(id=1175523160532333088, tenantId=1146029695717560320, journalId=1152916057816748034, articleId=1172525473570636561, language=EN, label=null, caption=null, figureFileSmall=Vvpcuj6tJDohQYhugW4NWQ==, figureFileBig=K/WYBOa8Ec8WyzoQPuCJxQ==, tableContent=null), ArticleFig(id=1175523160586859041, tenantId=1146029695717560320, journalId=1152916057816748034, articleId=1172525473570636561, language=CN, label=图11, caption=
传统A*与改进A*算法的路径搜索结果, figureFileSmall=Vvpcuj6tJDohQYhugW4NWQ==, figureFileBig=K/WYBOa8Ec8WyzoQPuCJxQ==, tableContent=null), ArticleFig(id=1175523160658162210, tenantId=1146029695717560320, journalId=1152916057816748034, articleId=1172525473570636561, language=EN, label=null, caption=null, figureFileSmall=EzQcEJt3IeB+ims5xb+6cg==, figureFileBig=TOMNaRu3sgUaCMqsovGmeQ==, tableContent=null), ArticleFig(id=1175523160708493859, tenantId=1146029695717560320, journalId=1152916057816748034, articleId=1172525473570636561, language=CN, label=图12, caption=
融合路径规划算法流程, figureFileSmall=EzQcEJt3IeB+ims5xb+6cg==, figureFileBig=TOMNaRu3sgUaCMqsovGmeQ==, tableContent=null), ArticleFig(id=1175523160767214116, tenantId=1146029695717560320, journalId=1152916057816748034, articleId=1172525473570636561, language=EN, label=null, caption=null, figureFileSmall=ht9qJOlCdcpLcaCvkq/p3Q==, figureFileBig=3/fXBf9hXgGfYqYgp99mSA==, tableContent=null), ArticleFig(id=1175523160834322981, tenantId=1146029695717560320, journalId=1152916057816748034, articleId=1172525473570636561, language=CN, label=图13, caption=
全局路径关键点的选取, figureFileSmall=ht9qJOlCdcpLcaCvkq/p3Q==, figureFileBig=3/fXBf9hXgGfYqYgp99mSA==, tableContent=null), ArticleFig(id=1175523160897237542, tenantId=1146029695717560320, journalId=1152916057816748034, articleId=1172525473570636561, language=EN, label=null, caption=null, figureFileSmall=EWDV6l/GpNmEnZcDPCtNjw==, figureFileBig=kClhgVBMJ9lSflvqJinAIw==, tableContent=null), ArticleFig(id=1175523160960152103, tenantId=1146029695717560320, journalId=1152916057816748034, articleId=1172525473570636561, language=CN, label=图14, caption=
DWA仿真场景与轨迹结果, figureFileSmall=EWDV6l/GpNmEnZcDPCtNjw==, figureFileBig=kClhgVBMJ9lSflvqJinAIw==, tableContent=null), ArticleFig(id=1175523161014678056, tenantId=1146029695717560320, journalId=1152916057816748034, articleId=1172525473570636561, language=EN, label=null, caption=null, figureFileSmall=oJbfM8nnrs4qgBY8dpPAEw==, figureFileBig=vops58Ii2VU5nw/drR5/bw==, tableContent=null), ArticleFig(id=1175523161077592617, tenantId=1146029695717560320, journalId=1152916057816748034, articleId=1172525473570636561, language=CN, label=图15, caption=
基于改进前后DWA算法的车辆运动数据对比, figureFileSmall=oJbfM8nnrs4qgBY8dpPAEw==, figureFileBig=vops58Ii2VU5nw/drR5/bw==, tableContent=null), ArticleFig(id=1175523161127924266, tenantId=1146029695717560320, journalId=1152916057816748034, articleId=1172525473570636561, language=EN, label=null, caption=null, figureFileSmall=CIFPtDstwDQMgqu44xhBtw==, figureFileBig=2BT8irM28IOU+MMBjjwxhQ==, tableContent=null), ArticleFig(id=1175523161186644523, tenantId=1146029695717560320, journalId=1152916057816748034, articleId=1172525473570636561, language=CN, label=图16, caption=
室内智能车试验平台硬件系统, figureFileSmall=CIFPtDstwDQMgqu44xhBtw==, figureFileBig=2BT8irM28IOU+MMBjjwxhQ==, tableContent=null), ArticleFig(id=1175523161253753388, tenantId=1146029695717560320, journalId=1152916057816748034, articleId=1172525473570636561, language=EN, label=null, caption=null, figureFileSmall=tdSwxjDcSX2iXbSO02uTMg==, figureFileBig=af0MhN7BwuIZpywV4ACQkQ==, tableContent=null), ArticleFig(id=1175523161333445165, tenantId=1146029695717560320, journalId=1152916057816748034, articleId=1172525473570636561, language=CN, label=图17, caption=
室内智能车试验软件架构流程, figureFileSmall=tdSwxjDcSX2iXbSO02uTMg==, figureFileBig=af0MhN7BwuIZpywV4ACQkQ==, tableContent=null), ArticleFig(id=1175523161413136942, tenantId=1146029695717560320, journalId=1152916057816748034, articleId=1172525473570636561, language=EN, label=null, caption=null, figureFileSmall=RVxSpHLTQMEZUgySuh3qJw==, figureFileBig=nSfpOinJNNYx2p2LIbiigg==, tableContent=null), ArticleFig(id=1175523161467662895, tenantId=1146029695717560320, journalId=1152916057816748034, articleId=1172525473570636561, language=CN, label=图18, caption=
长直走廊实际环境, figureFileSmall=RVxSpHLTQMEZUgySuh3qJw==, figureFileBig=nSfpOinJNNYx2p2LIbiigg==, tableContent=null), ArticleFig(id=1175523161522188848, tenantId=1146029695717560320, journalId=1152916057816748034, articleId=1172525473570636561, language=EN, label=null, caption=null, figureFileSmall=FkkKzyh9tdZ+Z3RC1QGn/A==, figureFileBig=WsVq9x11TDdml5meVkiB7w==, tableContent=null), ArticleFig(id=1175523161580909105, tenantId=1146029695717560320, journalId=1152916057816748034, articleId=1172525473570636561, language=CN, label=图19, caption=
长直走廊场景下传统Gmapping与改进Gmapping算法建图结果, figureFileSmall=FkkKzyh9tdZ+Z3RC1QGn/A==, figureFileBig=WsVq9x11TDdml5meVkiB7w==, tableContent=null), ArticleFig(id=1175523161652212274, tenantId=1146029695717560320, journalId=1152916057816748034, articleId=1172525473570636561, language=EN, label=null, caption=null, figureFileSmall=yRJUVlnlRw7e4ZmZyFkFzA==, figureFileBig=yQS3juTuhq6oVj5GaSifTQ==, tableContent=null), ArticleFig(id=1175523161723515443, tenantId=1146029695717560320, journalId=1152916057816748034, articleId=1172525473570636561, language=CN, label=图20, caption=
长直走廊场景地图, figureFileSmall=yRJUVlnlRw7e4ZmZyFkFzA==, figureFileBig=yQS3juTuhq6oVj5GaSifTQ==, tableContent=null), ArticleFig(id=1175523161782235700, tenantId=1146029695717560320, journalId=1152916057816748034, articleId=1172525473570636561, language=EN, label=null, caption=null, figureFileSmall=fxmoT6cHMT4GgaSYN3CXHA==, figureFileBig=ZeNIgnFQyces+tebNYU/Dg==, tableContent=null), ArticleFig(id=1175523161857733173, tenantId=1146029695717560320, journalId=1152916057816748034, articleId=1172525473570636561, language=CN, label=图21, caption=
地图中不同位置的距离误差率和角度误差率, figureFileSmall=fxmoT6cHMT4GgaSYN3CXHA==, figureFileBig=ZeNIgnFQyces+tebNYU/Dg==, tableContent=null), ArticleFig(id=1175523161916453430, tenantId=1146029695717560320, journalId=1152916057816748034, articleId=1172525473570636561, language=EN, label=null, caption=null, figureFileSmall=kQ7u1Y8ZwAjrBlVkJpQmWg==, figureFileBig=Q7zxisajrIprRz28nUQumA==, tableContent=null), ArticleFig(id=1175523161991950903, tenantId=1146029695717560320, journalId=1152916057816748034, articleId=1172525473570636561, language=CN, label=图22, caption=
长直走廊场景的先验环境地图, figureFileSmall=kQ7u1Y8ZwAjrBlVkJpQmWg==, figureFileBig=Q7zxisajrIprRz28nUQumA==, tableContent=null), ArticleFig(id=1175523162050671160, tenantId=1146029695717560320, journalId=1152916057816748034, articleId=1172525473570636561, language=EN, label=null, caption=null, figureFileSmall=cGkJPVMFoRYLLPimIMOipQ==, figureFileBig=SXnyOODqI7Moj0Kn0NHP0A==, tableContent=null), ArticleFig(id=1175523162101002809, tenantId=1146029695717560320, journalId=1152916057816748034, articleId=1172525473570636561, language=CN, label=图23, caption=
长直走廊场景的栅格膨胀地图, figureFileSmall=cGkJPVMFoRYLLPimIMOipQ==, figureFileBig=SXnyOODqI7Moj0Kn0NHP0A==, tableContent=null), ArticleFig(id=1175523162151334458, tenantId=1146029695717560320, journalId=1152916057816748034, articleId=1172525473570636561, language=EN, label=null, caption=null, figureFileSmall=5qe5sPC2oXB+oGCRbvYqzA==, figureFileBig=s9O8JUDG/Z7d/xCX4kRAkA==, tableContent=null), ArticleFig(id=1175523162205860411, tenantId=1146029695717560320, journalId=1152916057816748034, articleId=1172525473570636561, language=CN, label=图24, caption=
改进路径规划算法的全局路径规划结果, figureFileSmall=5qe5sPC2oXB+oGCRbvYqzA==, figureFileBig=s9O8JUDG/Z7d/xCX4kRAkA==, tableContent=null), ArticleFig(id=1175523162281357884, tenantId=1146029695717560320, journalId=1152916057816748034, articleId=1172525473570636561, language=EN, label=null, caption=null, figureFileSmall=SeDWmcgLaXkllGpwly3GRQ==, figureFileBig=KdIPCKtvabpbJaCi5LHnNg==, tableContent=null), ArticleFig(id=1175523162331689533, tenantId=1146029695717560320, journalId=1152916057816748034, articleId=1172525473570636561, language=CN, label=图25, caption=
改进DWA智能车位姿估计与控制指令, figureFileSmall=SeDWmcgLaXkllGpwly3GRQ==, figureFileBig=KdIPCKtvabpbJaCi5LHnNg==, tableContent=null), ArticleFig(id=1175523162398798398, tenantId=1146029695717560320, journalId=1152916057816748034, articleId=1172525473570636561, language=EN, label=null, caption=null, figureFileSmall=gtJ3c4kz1klyGBJ5y1ILLw==, figureFileBig=VP8+A0ULJVJnncje5ugi6g==, tableContent=null), ArticleFig(id=1175523162449130047, tenantId=1146029695717560320, journalId=1152916057816748034, articleId=1172525473570636561, language=CN, label=图26, caption=
传统DWA算法智能车位姿估计与控制指令, figureFileSmall=gtJ3c4kz1klyGBJ5y1ILLw==, figureFileBig=VP8+A0ULJVJnncje5ugi6g==, tableContent=null), ArticleFig(id=1175523162499461696, tenantId=1146029695717560320, journalId=1152916057816748034, articleId=1172525473570636561, language=EN, label=null, caption=null, figureFileSmall=null, figureFileBig=null, tableContent=
| 类别 | 试验单元 |
| 1 | 721 |
| 2 | 631 |
| 3 | 541、532 |
| 4 | 451、442、433、424 |
| 5 | 343、334、352、361 |
), ArticleFig(id=1175523162566570561, tenantId=1146029695717560320, journalId=1152916057816748034, articleId=1172525473570636561, language=CN, label=表1, caption=
确定类别权值的试验类别分组
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| 类别 | 试验单元 |
| 1 | 721 |
| 2 | 631 |
| 3 | 541、532 |
| 4 | 451、442、433、424 |
| 5 | 343、334、352、361 |
), ArticleFig(id=1175523162633679426, tenantId=1146029695717560320, journalId=1152916057816748034, articleId=1172525473570636561, language=EN, label=null, caption=null, figureFileSmall=null, figureFileBig=null, tableContent=
| 试验单元 | 平均有效粒子数/个 |
| 721 | 8.78 |
| 631 | 8.58 |
| 541、532 | 8.70、8.74 |
| 451、442、433、424 | 8.75、8.71、8.84、8.42 |
| 343、334、352、361 | 8.79、8.70、8.64、8.82 |
), ArticleFig(id=1175523162684011075, tenantId=1146029695717560320, journalId=1152916057816748034, articleId=1172525473570636561, language=CN, label=表2, caption=
试验平均有效粒子数汇总
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| 试验单元 | 平均有效粒子数/个 |
| 721 | 8.78 |
| 631 | 8.58 |
| 541、532 | 8.70、8.74 |
| 451、442、433、424 | 8.75、8.71、8.84、8.42 |
| 343、334、352、361 | 8.79、8.70、8.64、8.82 |
), ArticleFig(id=1175523162751119940, tenantId=1146029695717560320, journalId=1152916057816748034, articleId=1172525473570636561, language=EN, label=null, caption=null, figureFileSmall=null, figureFileBig=null, tableContent=
| 项目 | 传统Gmapping算法 | 改进Gmapping算法 |
| 有效粒子数平均值 | 8.45 | 8.84 |
| 重采样次数 | 8 | 9 |
| 最优粒子 权重统计量 | 最大值 | 平均值 | 最小值 | 最大值 | 平均值 | 最小值 |
| 0.401 7 | 0.112 5 | 0.002 1 | 0.416 2 | 0.118 8 | 0.000 5 |
| 轨迹平均 差值 | x轴/m | y轴/m | 航向角/rad |
| 0.015 5 | 0.009 7 | 0.005 3 |
| 最优粒子 权重差值 统计量 | 最大值 | 平均值 | 最小值 |
| 0.268 0 | 0.004 5 | -0.310 8 |
| 蜕变指标 | 0.500 | 0.333 |
| 优势保持 指标 | 0.375 | 0.444 |
), ArticleFig(id=1175523162809840197, tenantId=1146029695717560320, journalId=1152916057816748034, articleId=1172525473570636561, language=CN, label=表3, caption=
建图算法对比数据结果汇总
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| 项目 | 传统Gmapping算法 | 改进Gmapping算法 |
| 有效粒子数平均值 | 8.45 | 8.84 |
| 重采样次数 | 8 | 9 |
| 最优粒子 权重统计量 | 最大值 | 平均值 | 最小值 | 最大值 | 平均值 | 最小值 |
| 0.401 7 | 0.112 5 | 0.002 1 | 0.416 2 | 0.118 8 | 0.000 5 |
| 轨迹平均 差值 | x轴/m | y轴/m | 航向角/rad |
| 0.015 5 | 0.009 7 | 0.005 3 |
| 最优粒子 权重差值 统计量 | 最大值 | 平均值 | 最小值 |
| 0.268 0 | 0.004 5 | -0.310 8 |
| 蜕变指标 | 0.500 | 0.333 |
| 优势保持 指标 | 0.375 | 0.444 |
), ArticleFig(id=1175523162872754758, tenantId=1146029695717560320, journalId=1152916057816748034, articleId=1172525473570636561, language=EN, label=null, caption=null, figureFileSmall=null, figureFileBig=null, tableContent=
| 算法 | 搜索节点/个 | 路径长度/ 栅格数 | 转折次数/次 |
| 传统A*算法 | 16 | 16.31 | 9 |
| 改进A*算法 | 10 | 17.24 | 3 |
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改进A*与传统A*算法仿真结果数据对比
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| 算法 | 搜索节点/个 | 路径长度/ 栅格数 | 转折次数/次 |
| 传统A*算法 | 16 | 16.31 | 9 |
| 改进A*算法 | 10 | 17.24 | 3 |
), ArticleFig(id=1175523162994389576, tenantId=1146029695717560320, journalId=1152916057816748034, articleId=1172525473570636561, language=EN, label=null, caption=null, figureFileSmall=null, figureFileBig=null, tableContent=
| 参数 | 值 |
| 预测时间/s | 3 |
| 最大横摆角速度/(rad/s) | 20 |
| 最大线速度/(m/s) | 1.0 |
| 步长/s | 0.1 |
| 单个步长线速度采样点/个 | 8 |
| 线速度分辨率/(m/s) | 0.04 |
| 角速度分辨率/(rad/s) | 0.035 |
| 单个步长角速度采样点/个 | 5 |
), ArticleFig(id=1175523163069887049, tenantId=1146029695717560320, journalId=1152916057816748034, articleId=1172525473570636561, language=CN, label=表5, caption=
试验关键技术参数
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| 参数 | 值 |
| 预测时间/s | 3 |
| 最大横摆角速度/(rad/s) | 20 |
| 最大线速度/(m/s) | 1.0 |
| 步长/s | 0.1 |
| 单个步长线速度采样点/个 | 8 |
| 线速度分辨率/(m/s) | 0.04 |
| 角速度分辨率/(rad/s) | 0.035 |
| 单个步长角速度采样点/个 | 5 |
), ArticleFig(id=1175523163136995914, tenantId=1146029695717560320, journalId=1152916057816748034, articleId=1172525473570636561, language=EN, label=null, caption=null, figureFileSmall=null, figureFileBig=null, tableContent=
| 试验 | 对照组 | 试验组 |
| 线速度 | 均值 | 0.866 3 | 0.865 0 |
| 方差 | 0.009 3 | 0.009 5 |
| 角速度绝对值 | 均值 | 0.032 5 | 0.031 4 |
| 方差 | 0.001 7 | 0.001 2 |
| 路径长度 | 最大值 | 0.209 4 | 0.122 1 |
| 均值 | 113.44 | 113.64 |
), ArticleFig(id=1175523163191521867, tenantId=1146029695717560320, journalId=1152916057816748034, articleId=1172525473570636561, language=CN, label=表6, caption=
智能车运动轨迹数据
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| 试验 | 对照组 | 试验组 |
| 线速度 | 均值 | 0.866 3 | 0.865 0 |
| 方差 | 0.009 3 | 0.009 5 |
| 角速度绝对值 | 均值 | 0.032 5 | 0.031 4 |
| 方差 | 0.001 7 | 0.001 2 |
| 路径长度 | 最大值 | 0.209 4 | 0.122 1 |
| 均值 | 113.44 | 113.64 |
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| 关键参数 | 值 |
| 建图速度/(m/s) | 0.2 |
| 粒子数/个 | 10 |
| 重采样阈值 | 0.8 |
| 有效测距长度/m | 25 |
| 建图尺寸(长×宽)/m | 61×17 |
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建图算法关键参数
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| 关键参数 | 值 |
| 建图速度/(m/s) | 0.2 |
| 粒子数/个 | 10 |
| 重采样阈值 | 0.8 |
| 有效测距长度/m | 25 |
| 建图尺寸(长×宽)/m | 61×17 |
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| 线段检测项目 | 毫米级测距仪实测 标准值/m | 传统Gmapping测量值/m | 传统Gmapping测量 误差率/% | 本文改进Gmapping 算法测量值/m | 本文改进Gmapping 算法测量误差率/% |
| 1号 | 13.460 | 13.506 | -0.342 | 13.549 | -0.661 2 |
| 2号 | 2.756 | 2.596 | 5.806 | 2.803 | -1.705 4 |
| 3号 | 14.076 | 14.067 | 0.063 9 | 14.202 | -0.895 1 |
| 4号 | 16.780 | 16.46 | 1.907 | 16.722 | 0.345 6 |
| 5号 | 34.041 | 33.775 | 0.781 | 34.056 | -0.044 1 |
| 6号 | 17.432 | 17.426 | 0.034 | 17.452 | -0.114 7 |
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地图中不同位置的距离及距离误差
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| 线段检测项目 | 毫米级测距仪实测 标准值/m | 传统Gmapping测量值/m | 传统Gmapping测量 误差率/% | 本文改进Gmapping 算法测量值/m | 本文改进Gmapping 算法测量误差率/% |
| 1号 | 13.460 | 13.506 | -0.342 | 13.549 | -0.661 2 |
| 2号 | 2.756 | 2.596 | 5.806 | 2.803 | -1.705 4 |
| 3号 | 14.076 | 14.067 | 0.063 9 | 14.202 | -0.895 1 |
| 4号 | 16.780 | 16.46 | 1.907 | 16.722 | 0.345 6 |
| 5号 | 34.041 | 33.775 | 0.781 | 34.056 | -0.044 1 |
| 6号 | 17.432 | 17.426 | 0.034 | 17.452 | -0.114 7 |
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| 角度检测项目 | 标准值/(°) | 传统Gmapping测量值/(°) | 传统Gmapping测量 误差率/% | 本文改进Gmapping 算法测量值/(°) | 本文改进Gmapping 算法测量误差率/% |
| 角A | 168.536 | 170.718 | -1.295 | 170.472 | -1.1487 |
| 角B | 5.622 | 4.508 | 19.86 | 4.662 | 17.075 |
| 角C | 5.842 | 4.773 | 18.299 | 4.865 | 16.723 7 |
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地图中不同位置的角度及角度误差
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| 角度检测项目 | 标准值/(°) | 传统Gmapping测量值/(°) | 传统Gmapping测量 误差率/% | 本文改进Gmapping 算法测量值/(°) | 本文改进Gmapping 算法测量误差率/% |
| 角A | 168.536 | 170.718 | -1.295 | 170.472 | -1.1487 |
| 角B | 5.622 | 4.508 | 19.86 | 4.662 | 17.075 |
| 角C | 5.842 | 4.773 | 18.299 | 4.865 | 16.723 7 |
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| 关键参数 | 值 |
| 最大线速度/(m/s) | 0.2 |
| 最大角速度/(rad/s) | 20 |
| 控制指令发布频率/Hz | 10 |
| 线速度采样点/个 | 6 |
| 角速度采样点/个 | 10 |
| 前向模拟时间/s | 5 |
| 障碍物膨胀半径/m | 0.5 |
| 加速度/(m/s2) | 0.5 |
| 角加速度/(rad/s2) | 3.5 |
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路径规划试验关键参数
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| 关键参数 | 值 |
| 最大线速度/(m/s) | 0.2 |
| 最大角速度/(rad/s) | 20 |
| 控制指令发布频率/Hz | 10 |
| 线速度采样点/个 | 6 |
| 角速度采样点/个 | 10 |
| 前向模拟时间/s | 5 |
| 障碍物膨胀半径/m | 0.5 |
| 加速度/(m/s2) | 0.5 |
| 角加速度/(rad/s2) | 3.5 |
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| 试验指标结果 | 值 |
| 平均速度/(m/s) | 0.192 5 |
| 平均角速度绝对值/(rad/s) | 0.009 |
| 最大角速度/(rad/s) | 0.085 9 |
| 路程长度/m | 70.286 |
| 耗时/s | 305.5 |
| 控制指令发布频率/Hz | 10 |
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改进DWA算法路径规划试验结果
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| 试验指标结果 | 值 |
| 平均速度/(m/s) | 0.192 5 |
| 平均角速度绝对值/(rad/s) | 0.009 |
| 最大角速度/(rad/s) | 0.085 9 |
| 路程长度/m | 70.286 |
| 耗时/s | 305.5 |
| 控制指令发布频率/Hz | 10 |
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