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基于RRT算法的远距离自动泊车路径规划及仿真
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作者 周芳娟 韩霜 +1 位作者 林俊舟 张洪华 《广东交通职业技术学院学报》 2024年第4期13-18,共6页
泊车路径规划是自动泊车技术的重要组成部分。本文分析了现有的泊车路径规划方法,针对远距离自动泊车,提出基于BRT算法的路径规划。根据实际泊车操作过程,将自动泊车划分为远距离靠近泊位和泊入泊位两个阶段,采用基于反向RRT算法分别设... 泊车路径规划是自动泊车技术的重要组成部分。本文分析了现有的泊车路径规划方法,针对远距离自动泊车,提出基于BRT算法的路径规划。根据实际泊车操作过程,将自动泊车划分为远距离靠近泊位和泊入泊位两个阶段,采用基于反向RRT算法分别设计满足车辆运动模型和避障要求的路径规划算法,并在平行泊车、垂直泊车、反向斜方位泊车、正向斜方位泊车和角落平行泊车场景下进行仿真实验。 展开更多
关键词 RRT算法 远距离 自动泊车 车辆调整控制 Reeds-Shepp曲线
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Distribution characteristics of zooplankton in the south part of Taiwan Strait in summer
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作者 Zhu Changshou Huang Jiaqi +3 位作者 lin junzhou Du Qinghong Chen Xu Li Shaojing (1. Fujian Institute of Oceanology, Xiamen 361012, China 2. Department of Oceanography, Xiamen University, Xiamen 361005, China) 《Acta Oceanologica Sinica》 SCIE CAS CSCD 2000年第1期127-135,共9页
Based on the samples collected mesoplankton net from the south part Of Taiwan Strait (22. 25 --24. 65N, 117. 50 -- 120. 00E) in August 1997, 292 species of zooplankton and 11 groups of meroplankton were identified. In... Based on the samples collected mesoplankton net from the south part Of Taiwan Strait (22. 25 --24. 65N, 117. 50 -- 120. 00E) in August 1997, 292 species of zooplankton and 11 groups of meroplankton were identified. In the survey waters, Copepoda was dominant in either species or individual numbers. The diversity (H' ) was 5. 11 and the ratio of diversity to evenness (J ) was 7. 10, showing that the diversity of zooplankton was exceedingly high in the survey waters. Three zooplankton communities were clearly divided by systematical cluster analysis, indicating that the biotopes of these zooplankton communities may serve as the evidence for the basic status of distribution of water masses during the investigation. 展开更多
关键词 ZOOPLANKTON species diversity distribution characteristics Taiwan Strait
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