摘 要：利用接收信号强度和信道状态信息进行定位是目前基于Wi-Fi 室内定位技术的两种主要方法，二者各有特色，优势互补。为进一步研究Wi-Fi 室内定位技术，通过参阅文献，从几何、指纹两个方面论述接收信号强度与信道状态信息定位原理以及目前的研究现状，探讨两种方法的发展前景。未来如果能够进一步突破硬件与软件条件的限制，两者实现多源数据的紧耦合，将会极大促进Wi-Fi 定位技术在室内位置服务领域的发展。
关键词：室内定位；Wi-Fi；接收信号强度；信道状态信息
中图分类号：TN92 文献标识码：A 文章编号：2096-4706（2020）21-0048-05
Research Progress of Indoor Positioning Technology Based on Wi-Fi
YU Dan，XIE Shicheng，NING Quanke ，TAI Xiaoman ，ZHONG Chen
（School of Space Information and Surveying Engineering，Anhui University of Science and Technology，Huainan 232001，China）
Abstract：Using received signal strength and channel state information for positioning are currently two main methods based on Wi-Fi indoor positioning technology. Both have their own characteristics and complementary advantages. In order to further study the Wi- Fi indoor positioning technology，by referring to the literature，the principles of RSS and CSI positioning and the current research status are discussed in terms of geometry and fingerprint，and the development prospects of the two methods are discussed. In the future，if we can further break through the limitations of hardware and software conditions and achieve tight coupling of multi-source data between the two，it will greatly promote the development of Wi-Fi positioning technology in the field of indoor location services.
Keywords：indoor positioning；Wi-Fi；received signal strength；channel state information
基金项目：安徽理工大学研究生创新基金项目（2019CX2078）
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作者简介：余丹（1997—），女，汉族，安徽宿州人，硕士研究生，研究方向：空间定位与导航技术。