基于FPGA的可重构RFID标签的设计

设计了一种基于FPGA的可重构标签方案.可方便的优化标签的数据结构,并巧妙的利用同步通道,减少单用户占用时间,实现快速识别,获取位置信息等功能.文章给出了标签的整体架构和工作原理,借助FPGA结构可重构的特点,采用扩频体制和同步通道,将信息和全0分别用扩频伪码调制,然后用同步通道传输.文章通过原理框图、逻辑结构图、仿真图和示波器波形图将方案思路形象真实的表现出来,体现了此标签良好的功能和性能,以及方案高度的可行性.此标签还具有良好的兼容性.

Design of reconfigurable RFID tag based on FPGA

A kind of reconfigurable tag solution based on FPGA is designed. The data structure can be optimized conveniently, and synchronization channels are used ingeniously to reduce the single-user＇s hold-up time, to realize fast identification, to retrieve the location information, and so on. The article represents the tag＇s the whole structure and the working principle. It adopts spread spectrum system and synchronization channel, by virtue of the feature of reconfigurability of FPGA,modulating the information and 0 sequence with pseudo code of spread spectrum. And then, the two signals are transmitted by synchronization channels. The article represents the scheme idea with functional block diagram, building-block of logic, simulation figure, and oscilloscope waveform figure vividly and really. It embodied the tag＇s good function and performance, and the scheme＇s high feasibility. Also the tag has good compatibility.