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一种改进的移动机器人自定位算法 被引量:4

A Modified Self- localization Algorithm on Mobile Robot Localization
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摘要 针对经典蒙特卡洛定位算法,提出了两种改进策略,用于减少算法的复杂度。首先在粒子初始化阶段,通过距离匹配,一次性确定每个粒子的角度分量,可以明显减少计算量;其次,采用离线方式构建离散状态空间的权重表,从而在定位过程中,直接查表来确定各个粒子的权重,减轻了在线计算消耗。通过与经典蒙特卡洛定位算法比较,所提出的算法具有计算量小,收敛速度快的优点。 Two strategies were proposed to improve the classical Monte Carlo Localization algorithm on computing complexi- ty. Firstly, the angle element of every particle was determined at the initial by distance matching, which can decrease the compu- ting consuming. Then, a weight table was established for the discrete state space off line. By table indexing, the weight of every particle was exported directly. So the on - line weight calculation was avoided. Compared with the classical method, the proposed algorithm is less time -consuming and rapidly converging.
出处 《武汉理工大学学报(信息与管理工程版)》 CAS 2014年第1期9-13,共5页 Journal of Wuhan University of Technology:Information & Management Engineering
基金 教育部留学回国人员科研启动基金资助项目(20091j0011) 湖北省高等学校省级教学研究基金资助项目(2012097) 国家级大学生创新训练计划基金资助项目(20131049709008) 武汉理工大学自主创新研究基金资助项目(126609002)
关键词 自定位 移动机器人 环境地图 粒子滤波器 self - localization mobile robot environment map particle filter
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