Research on port vehicle combined positioning method based on fuzzy Kalman filter
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摘要: 针对北斗卫星导航系统(BDS)/惯性导航系统(INS)组合导航系统在遮挡环境下定位失效这一问题,通过分析组合导航系统中传感器的状态变化对定位精度的影响,设计了一种基于传感器工作状态的模糊逻辑推理系统,并与卡尔曼滤波算法相结合,通过实时调整系统量测噪声方差的方法提高定位精度.在港口环境下的无人车辆上进行了实验,实验表明,提出的方法能有效提高遮挡环境下无人车辆的定位精度,并具有良好的鲁棒性.Abstract: Aiming at the problems of BDS/INS integrated navigation system positioning failure in the obstructed environment, by analyzing the impact of sensor status changes in the integrated navigation system on positioning accuracy, we design a fuzzy logic inference system based on the status of the system, combined with the Kalman filter algorithm, the positioning accuracy is improved by real-time adjustment of the noise variance of the system measurement. Finally, experiments were carried out on unmanned vehicles in a port environment. Experiment shows that the proposed method can effectively improve the positioning accuracy of unmanned vehicles in an occluded environment, and has good robustness.
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Key words:
- system engineering /
- combined positioning system /
- fuzzy Kalman filter /
- integrated navigation /
- BDS/INS
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[1] 徐奔腾,陈萍萍,王秋阳,等.基于模糊自适应卡尔曼滤波的GPS-INS融合研究[J].化工自动化及仪表,2019,46(7):571-574,593. [2] 李鲁明,赵鲁阳,唐晓红,等.基于模糊卡尔曼滤波的姿态估计算法[J].仪表技术与传感器,2019(4):100-105,110. [3] 秦永元,张洪钺,汪叔华.卡尔曼滤波与组合导航原理[M].西安:西北工业大学出版社,2012. [4] BROWN A K.GPS/INS uses low-cost MEMS IMU[J].IEEE,aerospace & electronic systems magazine,2005,20(9):3-10.DOI: 10.1109/MAES.2005.1514768. [5] 姚文国,刘贵喜,柳渊,等.INS/GPS组合导航系统模糊卡尔曼滤波算法研究[J].弹箭与制导学报,2007,27(3):4-6,10. [6] 卞鸿巍.现代信息融合技术在组合导航中的应用[M].北京:国防工业出版社,2010. [7] KIM Y K,AN J W,LEE J Y.Robust navigational system for a transporter using GPS/INS fusion[J].IEEE transactions on industrial electronics,2018,65(4):3346-3354.DOI: 10.1109/TIE.2017.2752137.
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