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An Improved Adaptive Monte Carlo Localization Algorithm Integrated with a Virtual Motion Model

delete2025-04-14
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OA
AI
D
Demin Xie
吴
吴亮红 (Lianghong Wu) *
X
Xiaolong Tang
H
Hongqiang Zhang
DOI:10.3390/s25082471delete
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摘要

摘要

En 中文
针对自适应蒙特卡洛定位(AMCL)算法对里程计高度依赖的问题,提出了一种基于正态分布变换(NDT)和扩展卡尔曼滤波(EKF)的改进AMCL算法。将虚拟运动模型引入AMCL框架,以实现机器人未移动时的位姿更新。NDT用于点云匹配以估计虚拟位移并计算虚拟控制量,这些量随后输入运动模型,在机器人未移动时预测和更新粒子状态。此外,为避免编码器误差和车轮打滑对运动状态估计的负面影响,EKF算法整合了轮式里程计和惯性测量单元的信息来估计机器人位移,从而提高定位精度和稳定性。所提算法在仿真和真实环境中进行了实验验证,并与其它定位算法进行了比较。实验结果表明,所提算法能够有效提升冷启动阶段的定位速度,并在整个定位过程中增强定位精度和稳定性。该方法是一种提升移动机器人定位性能的潜在方法。
Keyword:
mobile robot localization
adaptive Monte Carlo localization
normal distributions transform
extended Kalman filter

期刊

Sensors 封面图
Sensors
IF:
3.5
论文数:
7.2W
被引数:
20.9W

机构

H
Hunan Univ Sci and Technol
学者数:
629
论文数: 265
被引数: 63
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