基于地磁与空间上下文信息的半解析定向方法

刘公绪; 高新波; 何立火; 解宇; 路建民

doi:10.12263/DZXB.20200797

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基于地磁与空间上下文信息的半解析定向方法

学术论文 | 更新时间：2025-12-08

- 基于地磁与空间上下文信息的半解析定向方法
- Semi-Analytical Orientation Method Based on Geomagnetism and Spatial Context Information
- 电子学报 2022年50卷第1期页码：116-123
- 作者机构：
  
  1.西安电子科技大学电子工程学院超高速电路设计与电磁兼容教育部重点实验室，陕西西安 710071
  2.重庆邮电大学图像认知重庆市重点实验室，中国重庆 400065
  3.山西大学计算智能与中文信息处理教育部重点实验室，山西太原 030006
- 作者简介：
  
  [ "刘公绪男，1992年生，河南兰考人.现为西安电子科技大学控制科学与工程流动站博士后，超高速电路设计与电磁兼容教育部重点实验室成员，电子工程学院讲师.主要研究方向为室内外无缝定位、光电磁地图重构、多源信息融合等. E-mail:liugongxu@xidian.edu.cn" ]
  [ "高新波男，1972年生，山东莱芜人.国家“万人计划”科技创新领军人才，新世纪百千万人才工程国家级人选，教育部长江学者特聘教授，国家杰出青年科学基金获得者，全国创新争先奖获得者.现为西安电子科技大学模式识别与智能系统教授，重庆邮电大学计算机科学与技术教授.主要研究方向为人工智能、机器学习、图像处理、计算机视觉和模式识别等. E-mail:xbgao@mail.xidian.edu.cn" ]
  [ "何立火男，1985年生，浙江松阳人.现为西安电子科技大学副教授.主要研究方向为图像/视频质量评估、认知计算和计算视觉等. E-mail:lhhe@mail.xidian.edu.cn" ]
  [ "解宇男，1993年生，山西交城人.现为山西大学计算智能与中文信息处理教育部重点实验室讲师.主要研究方向为深度表示学习、图数据挖掘、人工智能安全等. E-mail:sxlljcxy@gmail.com" ]
  [ "路建民（通信作者）男，1983年生，河南安阳人.于2012年从西安电子科技大学获得电路与系统专业博士学位，现为西安电子科技大学超高速电路设计与电磁兼容教育部重点实验室讲师.主要从事高速数字中互连线和电源地网络等结构的分析与建模、信号完整性/电源完整性/电磁兼容的分析与设计、光电磁地图重构等领域的研究工作. E-mail:jmlu@xidian.edu.cn" ]
- 基金信息：
  
  中央高校基本科研业务费(XJS210209);国家自然科学基金面上项目(61871453);国家自然科学基金青年科学基金(62101399)
- DOI：10.12263/DZXB.20200797
  中图分类号： V241.61;P318.6
- 收稿：2020-07-28，
  
  修回：2021-06-15，
  
  纸质出版：2022-01-25
- 稿件说明：
移动端阅览
刘公绪,高新波,何立火等.基于地磁与空间上下文信息的半解析定向方法[J].电子学报,2022,50(01):116-123.

LIU Gong-xu,GAO Xin-bo,HE Li-huo,et al.Semi-Analytical Orientation Method Based on Geomagnetism and Spatial Context Information[J].ACTA ELECTRONICA SINICA,2022,50(01):116-123.
刘公绪,高新波,何立火等.基于地磁与空间上下文信息的半解析定向方法[J].电子学报,2022,50(01):116-123. DOI： 10.12263/DZXB.20200797.

LIU Gong-xu,GAO Xin-bo,HE Li-huo,et al.Semi-Analytical Orientation Method Based on Geomagnetism and Spatial Context Information[J].ACTA ELECTRONICA SINICA,2022,50(01):116-123. DOI： 10.12263/DZXB.20200797.

摘要

在物联网时代，人们对高精度的、普适的室内定位需求日益迫切.然而鲁棒的技术方案仍没有出现，其中一个难点是用好地磁解决室内人员的定向问题.众所周知，在空旷的室外环境可以基于地磁解析定向的方法实现定向，然而室内地磁往往存在严重的磁失真，使得该方法不再适用.为解决上述问题，本文提出一种半解析定向方法.该方法首先将解析定向结果与基于空间上下文信息提取的走廊结构的几何关系进行融合，得到修正的定向结果，并通过磁失真度量和判断确定融合系数；进而深入分析了不同融合系数对定向结果的影响.测试结果表明，与现有方法相比，所提出的方法具有较好的鲁棒性，可以有效改善定向精度，广泛用于基于路径的或基于走廊的定位定向场合.

Abstract

In the era of the Internet of Things(IoT)

the demand is increasingly urgent in terms of high-precision and ubiquitous indoor positioning. However

it lacks robust technical solutions

and one of the challenges is to solve the orientation problem for indoor pedestrians by making good use of geomagnetic field. As we all know

the orientation can be acquired through analytical method based on geomagnetic field in the open outdoor environment

while it is difficult to apply the analytical method in indoor environments when taking the serious magnetic distortion into consideration. In order to solve the above issues

this paper proposes a semi-analytical orientation method. Firstly

the proposed method can get the corrected results by the fusion of the result from analytic orientation with that from the geometric relationship of the corridor structure extracted based on the spatial context information

and the fusion coefficient is determined through the magnetic distortion measurement and judgment. Then we deeply analyzed the influence of different coefficients on the results. Finally

the test results show that the proposed method has good robustness and can effectively improve the orientation accuracy compared with the existing methods

and can be widely used in path-based or corridor-based positioning and orientation scenarios.

关键词

Keywords

references

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