设备部署受限下定位系统设计及算法的研究
首发时间:2020-03-24
摘要:针对设备部署受限情况下的定位场景,如在机场环境中考虑到飞机的正常起落不能在任意位置部署设备,设备尽量部署在航站楼上。本文对设备部署受限下的定位系统及算法进行了研究。定位系统使用球形天线阵列进行Wi-Fi数据采集,该阵列能够满足设备部署受限的要求并能够反映三维空间内的电磁波传输特性。此外,该研究结合球形天线阵列上电磁波的入射角度和K最近邻指纹匹配算法,提出了一种改善的指纹匹配算法。经过实测仿真验证,该算法不仅具有较好的实用性和可用性,并且具有较高的定位精度。
关键词: Wi-Fi定位定位定位 指纹定位方法 天线阵列 部署受限
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Research on Positioning System Design and Algorithms under Limited Equipment Deployment
Abstract:For positioning scenarios where equipment deployment is limited, for example, in the airport environment, taking into account the normal landing and landing of the aircraft, equipment cannot be deployed at any position. The equipment should be deployed in the terminal as much as possible. This paper studies the positioning system and algorithm under the limited equipment deployment. The positioning system uses a spherical antenna array for Wi-Fi data acquisition. The array can meet the requirements of limited equipment deployment and can reflect the electromagnetic wave transmission characteristics in three-dimensional space. In addition, this study combines the incident angle of electromagnetic waves on the spherical antenna array and the K-NearestNeighbor fingerprint matching algorithm to propose an improved fingerprint matching algorithm. After actual test and simulation, the algorithm not only has good practicability and usability, but also has high positioning accuracy.
Keywords: Wi-Fi positioning Fingerprint positioning method Antenna array Limited deployment
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