基于WiFi的室内目标检测与定位方法

发布时间:2022-11-01 作者:韩雨彤,李航,朱光旭,陆彦辉 阅读量:

 

基于WiFi的室内目标检测与定位方法

韩雨彤1,李航2,朱光旭2,陆彦辉2,3

(1. 郑州大学,中国 郑州 450001;2. 深圳市大数据研究院,中国 深圳 518172;3. 郑州大学产业技术研究院,中国 郑州 450001)

摘要:提出了一种基于WiFi的室内目标检测与定位方法。采用连续多路径干扰消除的方法为多维参数估计提供初始化值,对估计出的多维参数进行特征提取及分类,可以识别出室内有无目标以及目标的状态。通过信道参数实现目标位置估计,并根据室内地标来校准位置。实验结果表明,提出的定位算法平均误差为0.8252 m,可有效提高定位的准确度。

关键词:信道状态信息;多维参数估计;目标检测;目标定位

 

Indoor Target Detection And Localization Method Based on WiFi

HAN Yutong1, LI Hang2, ZHU Guangxu2, LU Yanhui2,3

(1. Zhengzhou University, Zhengzhou 450001, China;2. Shenzhen Institute of Big Data, Shenzhen 518172, China;3. Zhengzhou University Industrial Technology Research Institute, Zhengzhou 450001, China)

Abstract: An indoor target detection and localization method based on WiFi is proposed. The method of continuous multi-path interference elimination is used to provide the initial value for multi-dimensional parameter estimation, and the feature extraction and classification of the estimated multi-dimensional parameters can identify whether there is a target in the room and the state of the target. The target location is resolved from the estimated channel parameters, and the location is calibrated according to indoor landmarks. Experimental results show that the average error of the proposed localization algorithm is 0.8252 m, which can effectively improve the location accuracy.

Keywords: channel state information; multi-dimensional parameter estimation; target detection; target localization

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