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李宝山，罗静
(内蒙古科技大学信息工程学院，内蒙古包头014010)
关键词:ＲFID;ISO/IEC18000 － 6;FPGA;曼彻斯特码;FM0 码
中图分类号:TN911． 72 文献标识码:A
摘要:依据ISO/IEC18000 － 6 协议规定，研究了基于FPGA 基带编解码方法，提出一种抗干扰性强的新方法，该方法基于ISO/IEC18000 － 6 中Type B 协议，对前向链路中的曼彻斯特编码和反向链路中的FM0 解码进行改进，在ISE 中进行综合、仿真得出了正确结果;最后通过在ISE 的测试代码中添加随机干扰激励信号验证此基带编解码方法抗干扰强的特性．
Ｒesearch and improvement of UHF ＲFID interrogator baseband encoding and decoding based on FPGA
LI bao-shan，LUO Jing
(Information and Engineering School，Inner Mongolia University of Science and Technology，Baotou 014010，China)
Key words:ＲFID;ISO/IEC18000 － 6;FPGA;Manchester encoding;FM0 decoding
Abstract:The baseband decoding method based on FPGA was researched according to the protocol of ISO/IEC18000 － 6.A new method was suggested for baseband processing，which has the characteristics of strong anti-interference.The new method used Type B protocol of ISO/IEC18000 － 6B to improve bosh Manchester encoding in the forward link and FM0 decoding in the reverse link． And the verilog code was synthesized and simulated by Xilinx ISE software with the new method． The desired experimental result was obtained
by adding some random interference signals into the testbench before the ISE simulation was running，which turns out to be with a characteristics of strong anti-interference．