A typical radio frequency identification (RFID) system consists of three parts: tag, reader and antenna.

射频识别系统一般由三部分组成：电子标签(射频卡)、读取器和天线。

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Meanwhile, the radio frequency identification technology (RFID) tag in the service sector as the public transportation system, personnel identification system is also widely used.

同时，射频识别技术(RFID)作为电子标签在服务行业中的公交系统、人员身份识别系统也有广泛的使用。

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The design scheme of a RFID (Radio Frequency Identification)System is given in this paper. The backscatter modulation technique is used to transmit the data to the reader from a tag.

文中给出射频识别系统的设计方案，系统采用反向散射调制技术完成从电子标签到读写器的数据传输。

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