计算机科学 ›› 2022, Vol. 49 ›› Issue (6A): 606-611.doi: 10.11896/jsjkx.210700108
周楚霖, 陈敬东, 黄凡
ZHOU Chu-lin, CHEN Jing-dong, HUANG Fan
摘要: 为提高室内定位的精度和稳定度,文中提出了一种基于无迹粒子滤波的WiFi-PDR融合的室内定位方法。为降低室内复杂环境对WiFi定位的影响,采用加权路径损失算法改善WiFi定位;为降低行人航迹推算误差累积效应,通过设定参考值划分行走周期并对加速度数据进行平滑降噪处理,提高了步数计量的精度;在改进WiFi和PDR定位的基础上,提出使用无迹粒子滤波融合定位方法,并对粒子滤波进行抗差自适应优化,提高其鲁棒性。实验仿真结果表明该方法可以有效提高室内定位的精度和稳定性。
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