摘要
基于WiFi的被动式定位技术因其不要求目标携带射频标签、定位设备已商用化、定位数据便于获取等优点得到广泛关注。文中综述了现有的基于WiFi的设备无关被动式定位系统,按照定位数据特点和定位实现原理,对比分析了基于接收信号强度(RSS)和基于信道状态信息(CSI)的WiFi定位系统的架构、定位性能和适用性,所得结论可作为定位系统选择的依据。
The passive localization technology based on WiFi is widely concerned because it does not require the target to carry the radio frequency tag,the localization equipment has been commercialized,and the localization data is easy to obtain.The existing device-free passive localization systems based on WiFi have been reviewed in this paper. According to the characteristics of the localization data and the localization implementation principle,the two localization systems based on the received signal strength(RSS) and channel state information(CSI) are contrasted and analyzed in the implementation structure,location accuracy and applicability. The results can be used for the selection of the localization systems.
作者
朱春华
田稼科
ZHU Chunhua;TIAN Jiake(College of Information Science and Engineering,Henan University of Technology,Zhengzhou 450001,China)
出处
《现代电子技术》
北大核心
2020年第11期24-28,共5页
Modern Electronics Technique
基金
国家自然科学基金项目资助:基于CSI的无线层析成像探测仓储粮食异常粮情的研究(61871176)
国家自然科学基金项目资助:无线层析成像法探测仓储粮食异常粮情的研究(61741107)
河南省科技厅重点项目资助(172102210230)
河南省高等学校重点科研项目应用研究计划(19A510011)
河南工业大学科学研究基金(省属高校基本科研业务费专项资金)自然科学领域项目(2018RCJH18)。
关键词
被动式定位
WiFi定位系统
指纹匹配
目标检测
接收信号强度
定位性能分析
定位数据获取
passive localization
WiFi positioning system
fingerprint matching
object detection
received signal strength
positioning performance analysis
positioning data acquisition
