RFID读写器接收机基带数字信号处理研究  

Study and Design of Base-Band Digital Signal Process for UHF RFID Reader′s Receiver

作　　者：乌云高娃[1] 鲁骏[2] 吴荣华[2] 

机构地区：[1]深圳职业技术学院,广东深圳518055 [2]中国电子科技集团公司第七研究所,广东广州510310

出　　处：《电子学报》2009年第6期1382-1385,共4页Acta Electronica Sinica

摘　　要：本文首次提出了影响超高频RFID数字接收机性能的各种因素,明确了噪声和直流偏移干扰对读写器性能的影响关系.给出包含过采样滤波、直流偏移校正、相关性解码等基带数字信号处理方案,并在Altera FPGA上进行了验证.结果证明它比其他方法可以有效提高超高频RFID读写器的读取效果.By analysis the factors which affect of UHF RFID reader＇s digital receiver, make it clear between signal noise first time,De offset and receiver perfotmance. A novel design of Base-band digital signal process method for Zero-IF receiver is presented, such as oversample filtering,De offset adjust and correlation decode to solve this problem. The methods are implemented on AI- tera＇ s FPGA and got better performance than other methods.

关 键 词：RFID读写器 零中频 直流偏移 基带信号处理 

分 类 号：TN911.25[电子电信—通信与信息系统]