计算机与现代化

• 计算机控制 • 上一篇    下一篇

 一种改进的鲁棒SLAM算法

  

  1. 河海大学物联网工程学院,江苏常州213022
  • 收稿日期:2015-09-23 出版日期:2016-03-02 发布日期:2016-03-03
  • 作者简介: 柯江胜(1991-),男,江西湖口人,河海大学物联网工程学院硕士研究生,研究方向:机器人SLAM; 倪建军(1978-),男,安徽黄山人,教授,博士,研究方向:神经网络,多机器人 系统; 吴榴迎(1991-),女,浙江桐庐人,硕士研究生,研究方向: 机器人导航。
  • 基金资助:
     国家自然科学基金资助项目(61203365); 江苏省自然科学基金资助项目(BK2012149); 中央高校基本科研业务费专项基金资助项目(2011B04614)

 An Improved Robust SLAM Algorithm

  1. College of Internet of Things Engineering, Hohai University, Changzhou 213022, China
  • Received:2015-09-23 Online:2016-03-02 Published:2016-03-03

摘要:

机器人在未知环境工作时经常会受到外部干扰的影响,易导致常规SLAM算法定位失败,因此提高其鲁棒性是研究的关键。针对这一问题,提出一种改进的鲁棒SLAM算法,在应对外部干扰时
,同时对系统状态的先验估计误差协方差和观测噪声协方差进行调整,从而得到更准确的定位结果。仿真实验结果表明,所提算法优于现有算法,在存在外部干扰的情况下能更有效地减小机器人定位误
差。

关键词: 同步定位与地图构建, 扩展卡尔曼滤波, 外部干扰, 鲁棒性

Abstract:

When the robot works in an unknown environment, it is often affected by the external disturbance, which will make the localization failure based on the general
SLAM algorithm. To deal with this problem, an improved robust SLAM algorithm is proposed, to obtain a more accurate positioning result and reduce the effect of the external
disturbance, by adjusting the state prior estimate error co-variance and measurement noise co-variance of the system simultaneously. Finally, some simulation experiments are
conducted, the results show that the proposed algorithm can decrease the robot localization error more effectively under the environment with external disturbance, and the
performance of the proposed algorithm is superior to other algorithms.

Key words: SLAM, EKF, external disturbance, robustness