基于室内地图环境信息的多楼层WiFi定位技术研究

发布时间：2018-03-08 06:25

本文选题：仿射传播聚类　切入点：指纹　出处：《电子科技大学学报》2017年01期 　论文类型：期刊论文

【摘要】：针对多楼层环境的室内定位需求,提出了一种基于地图环境先验信息的WiFi指纹定位方法。首先在离线阶段建立地图环境信息模型并对指纹进行仿射传播聚类,然后在线阶段采用RSSI阈值的楼层判别算法确定楼层,并结合地图信息模型和最大后验估计方法计算出终端位置。实验结果表明,相比于传统的指纹定位方法,室内定位技术不仅能提高定位精度,并且降低了在线阶段指纹匹配计算的复杂度。
[Abstract]:Aiming at the indoor location requirement of multi-floor environment, a WiFi fingerprint location method based on map environment priori information is proposed. Firstly, the map environment information model is established in off-line stage and the affine propagation clustering of fingerprint is carried out. Then, in the online stage, the floor identification algorithm based on RSSI threshold is used to determine the floor, and the terminal position is calculated by combining the map information model and the maximum posteriori estimation method. The experimental results show that, compared with the traditional fingerprint location method, Indoor location technology can not only improve the accuracy of location, but also reduce the complexity of fingerprint matching in online stage.
【作者单位】：北京工业大学电子信息与控制工程;
【分类号】：TN92

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