远距离无源射频识别系统设计 |
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作者姓名: | 张益强 郑铭 张其善 |
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作者单位: | 北京航空航天大学电子信息工程学院 北京100083
(张益强,郑铭),北京航空航天大学电子信息工程学院 北京100083(张其善) |
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摘 要: | 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。接收机采用零中频直接变频方案 ,电路简化 ,可有效地降低成本。抗冲突协议采用两种模式。测试结果表明 ,该方案达到了设计指标 ,可满足实际射频识别应用系统的要求
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关 键 词: | 射频识别 反向散射调制 零中频接收 抗冲突技术 |
Design of Long Range Passive RFID System |
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Authors: | Zhang Yiqiang Zheng Ming Zhang Qishan |
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Institution: | Zhang Yiqiang Zheng Ming Zhang Qishan |
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Abstract: | 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.The zero IF technology is used in the receiver which can simplify the reader circuit and reduce cost significantly.Two kinds of anti-collision method are used in this system.Both the simulation and experiment results show that this design scheme fully satisfy the need of the practical RFID system. |
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Keywords: | RFID BackScatter Modulation Zero-IF Receiver Anti-collision |
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