测绘通报 ›› 2025, Vol. 0 ›› Issue (6): 78-83.doi: 10.13474/j.cnki.11-2246.2025.0614

• 学术研究 • 上一篇    

多因素联合的超宽带测距随机模型

马孙超1,2, 刘晖1,2, 钱闯1,3, 陈一彪1,2, 纪元法4   

  1. 1. 武汉大学卫星导航定位技术研究中心, 湖北 武汉 430079;
    2. 武汉大学测绘学院, 湖北 武汉 430079;
    3. 武汉理工大学智能交通系统研究中心, 湖北 武汉 430070;
    4. 桂林电子科技大学广西精密导航技术与应用重点实验室, 广西 桂林 541004
  • 收稿日期:2024-11-13 发布日期:2025-07-04
  • 通讯作者: 刘晖。E-mail:loweliu@whu.edu.cn
  • 作者简介:马孙超(1998—),男,硕士生,主要研究方向为室内定位。E-mail:1952505097@qq.com
  • 基金资助:
    桂林电子科技大学广西精密导航技术与应用重点实验室基金(DH202319);重庆市自然科学基金创新发展联合基金(CSTB2023NSCQ-LZX0162)

Multi-factor joint UWB ranging stochastic model

MA Sunchao1,2, LIU Hui1,2, QIAN Chuang1,3, CHEN Yibiao1,2, JI Yuanfa4   

  1. 1. GNSS Research Center, Wuhan University, Wuhan 430079, China;
    2. School of Geodesy and Geomatics, Wuhan University, Wuhan 430079, China;
    3. Intelligent Transportation Systems Research Center, Wuhan University of Technology, Wuhan 430070, China;
    4. Guangxi Key Laboratory of Precision Navigation Technology and Application, Guilin University of Electronic Technology, Guilin 541004, China
  • Received:2024-11-13 Published:2025-07-04

摘要: 由于室内环境复杂多变,基于单一因素的超宽带(UWB)测距随机模型有各自的优势与不足。为进一步精化现有模型,提高UWB复杂场景定位精度,本文在分析UWB测距质量相关因素的基础上,提出一种基于通信距离、信噪比、功率差联合随机模型。该随机模型综合考虑了各噪声影响因素,具有较强的环境适应性。试验结果表明,多因素联合随机模型相比于单一因素随机模型有更好的抗噪性能,静态定位精度与等权模型相比可提升40%,动态定位结果更贴近真实轨迹。

关键词: 超宽带, 测距信号, 随机模型, 定位精度

Abstract: Due to the complex and changeable indoor environment, the UWB stochastic model based on single factor has its own advantages and disadvantages. In order to further refine the existing model and improve the positioning accuracy of UWB in complex scene, this paper proposes a joint stochastic model based on communication distance, signal-to-noise ratio and power difference on the basis of analyzing the factors related to UWB ranging quality. The stochastic model takes into account all noise factors and has strong environmental adaptability. The experimental results show that the multi-factor combined stochastic model has better anti-noise performance than the single factor stochastic model, the static positioning accuracy can be improved by 40% compared with the equal weight model, and the dynamic positioning results are closer to the real trajectory.

Key words: ultrawide band, ranging signal, stochastic model, positioning accuracy

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