无线射频技术和邻域定位算法的搜索定位系统研究  

A New Positioning System Based on Radio Frequency Identification and Neighbourhood Positioning Algorithm

作　　者：翟维 ZHAI Wei(College of Electronic Engineering,Xi'an Aeronautical University,Xi'an 710077)

机构地区：[1]西安航空学院电子工程学院,西安710077

出　　处：《计算机与数字工程》2021年第7期1310-1314,1324,共6页Computer & Digital Engineering

摘　　要：论文拟采用无源标签对物体进行定位,基于多跳邻域定位的思想对传统无线射频识别定位算法进行优化,提出的优化算法仅需考虑无线射频识别系统的最基础功能,无需考虑阅读器和标签之间的信号传输强度,极大地简化了定位识别系统的成本,并增加其鲁棒性和抗干扰特性。然后分析了影响算法性能的主要因素,介绍了系统结构和参数选择。最后,将优化算法的仿真结果与试验结果进行了对比。对比表明,该定位系统具有较高的定位精度和抗环境干扰能力,适用于运动目标的位置估计。研究成果为无线射频识别定位开辟了一条新的途径。This paper aims to overcome the drawbacks of the traditional object positioning algorithms.For this purpose,pas⁃sives tags are adopted to position the objects,and the traditional radio frequency identification(RFID)positioning algorithm is opti⁃mized based on multi-hop neighbourhood positioning.The optimized algorithm only considers the basic function of the RFID sys⁃tem,excluding the signal transmission strength between the reader and tag.In this way,the positioning cost of the positioning sys⁃tem is significantly reduced,while its robustness and anti-interference property are greatly enhanced.Then,the main influencing factors of the algorithm performance is analysed,and the system construction and parameter selection is introduced.Finally,the simulation results of the optimized algorithm are contrasted with the test results.The comparison shows that the proposed positioning system enjoys high positioning accuracy and resistance to environment disturbances,and applies to the position estimation of mov⁃ing objects.The research findings open up a new way to RFID positioning.

关 键 词：无线射频识别 定位 无源标签 误差分析 

分 类 号：TP301.6[自动化与计算机技术—计算机系统结构]