摘要
超高频(UHF)射频识别系统(RFID)读取可靠性受多径传播信道制约,而多天线分集技术被认为能有效提高其链路可靠性;分析了UHF RFID射频链路和ISO18000-6C通信协议的特点,提出了适用于UHF RFID的多天线分集简化模型,并讨论了该系统的信道类型以及信道建模和估计方法;2×2天线配置的阅读器接收信噪比的测量结果表明该方法是可行的。
The identification reliability of ultra high frequency （UHF） radio frequency identification （RFID） system is restricted by its multipath propagation channels, and antenna diversity technique can effectively improve the channels reliability. This paper analyzes the characteristics of the communication links and the ISO 18000--6C protocol for UHF RFID system. Based on the antenna diversity model for mobile communication system, the UHF RFID simplified model was proposed and discussed. Then the types of system＇ s channel and meth ods of channel modeling and estimation were showed, and the test results of 2 x 2 reader＇s received SNR has proved our methods in this paper were feasible.
出处
《计算机测量与控制》
北大核心
2013年第11期3106-3108,共3页
Computer Measurement &Control
基金
湖南省教育厅科学研究项目(12C0917)
关键词
射频识别
反向散射调制
多天线分集
信道估计
radio frequency identification （RFID）
reverse scatter modulation multi--antenna diversity~ channel estimation
