一种基于蓝牙峰值纠正的改进PDR定位方法  

AN IMPROVED PDR POSITIONING METHOD BASED ON BLUETOOTH PEAK CORRECTION

作　　者：李晓鹏 王玫[1,2] 周陬 罗丽燕 宋浠瑜 Li Xiaopeng;Wang Mei;Zhou Zou;Luo Liyan;Song Xiyu(Provincial Ministry of Education Key Laboratory of Cognitive Radio and Signal Processing,Guilin University of Electronic Technology,Guilin 541004,Guangxi,China;College of Information Science and Engineering,Guilin University of Technology,Guilin 541007,Guangxi,China)

机构地区：[1]桂林电子科技大学认知无线电与信息处理教育部重点实验室,广西桂林541004 [2]桂林理工大学信息科学与工程学院,广西桂林541007

出　　处：《计算机应用与软件》2022年第6期40-45,60,共7页Computer Applications and Software

基　　金：国家自然科学基金项目(61771151);广西创新驱动项目(AA18118039);广西科技计划项目(AD18281044);广西自然科学基金项目(2016GXNSFBA38014)。

摘　　要：针对行人航迹推算(Pedestrian Dead Reckoning,PDR)存在累积误差的问题,提出一种基于蓝牙峰值纠正的改进PDR定位方法。利用改进的RSS峰值检测法来检测蓝牙基站并用于纠正PDR的位置,根据地标间的距离推测PDR的步长,借助走廊朝向来纠正陀螺仪的方向。该方法无须建立指纹库或无线信号传播模型,同时省去了离线训练步长模型的过程。实验结果表明,相对于传统PDR,该方法在定位精度上有明显的提高。Due to the error-accumulation issue for pedestrian dead reckoning(PDR),we propose an improved PDR based on Bluetooth peak correction.An improved RSS peak detection method was used to detect Bluetooth base in order to correct PDR s position.The step size of PDR was induced by the distance between landmarks.According to the orientation of corridor,we corrected the direction of the gyroscope.In this way,there was no need to construct fingerprint database or radio propagation model,and it left out the offline training process of step length model.Experimental results show that the proposed method can significantly improve the positioning accuracy compared with the traditional PDR.

关 键 词：室内定位 行人航迹推算 蓝牙 

分 类 号：TP3[自动化与计算机技术—计算机科学与技术]