摘要
接收信号强度(RSS)特征选取是影响无线层析成像(RTI)定位性能的关键因素之一。将现有RTI技术采用的RSS特征分为RSS衰减特征、RSS移动方差特征和RSS直方图分布核距离特征三类。分析结果表明,三类RSS特征在多径干扰抑制、目标运动状态、系统要求以及定位精度上有明显不同。所得结论是进一步研究RSS特征优化的基础。
The feature selection of received signal strength(RSS)is one of the key factors affecting the positioning performance of radio tomographic imaging(RTI).The RSS features adopted in available RTI technology are divided into three types:RSS attenuation feature,RSS moving variance feature and RSS histogram distribution kernel distance feature.The analysis results show that the above three RSS features are significantly different in the aspects of multipath interference suppression,target motion state,system requirements and positioning accuracy.The conclusion is the basis of further study on RSS feature optimization.
作者
朱春华
陈岳
ZHU Chunhua;CHEN Yue(School of Information Science and Engineering,Henan University of Technology,Zhengzhou 450001,China)
出处
《现代电子技术》
北大核心
2018年第15期31-33,38,共4页
Modern Electronics Technique
基金
国家自然科学基金应急管理项目:无线层析成像法探测仓储粮食异常粮情的研究(61741107)
国家自然科学青年基金项目:大规模MIMO系统中基于动态天线选择的无比率编码协作传输方法研究(61601170)
河南省科技厅项目:散粒体粮堆无线信道特性研究(172102210230)~~
关键词
无线层析成像
定位算法
RSS
特征选取
衰减特征
核距离
radio tomographic imaging
location algorithm
RSS
feature selection
attenuation feature
kernel distance
