北京邮电大学学报

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北京邮电大学学报

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一种用于RFID的数据编码方法

郑凤

  

  1. 北京邮电大学继续教育学院(即北京邮电大学通信网络综合技术研究所;北京邮电大学培训中心)
  • 收稿日期:2006-10-13 修回日期:2007-01-25 出版日期:2007-06-30 发布日期:2007-06-30
  • 通讯作者: 贾嘉

A Data Coding Method for RFID System

  • Received:2006-10-13 Revised:2007-01-25 Online:2007-06-30 Published:2007-06-30

摘要: 在无源RFID系统中,为使标签从来自阅读器的信号中获得更多的能量,提出一种新的数据编码方法,即改进的Manchester编码。它的主要改进之处在于在一个码元周期内增加了高电平的持续时间;它同时保留了易于同步和提取时钟的优点。但该编码在提高信号能量的同时,展宽了频谱。

关键词: RFID, 编码, 能量

Abstract: For carrying out more energy to passive tag, a modified-Manchester coding is presented for RFID system in this paper. The basic idea of this coding is to provide more high level duration within a symbol cycle. The merits of being easy to synchronize and extract timing clock is still kept down. The cost of carrying more energy is that the frequency spectrum is widened.

Key words: RFID, coding, energy