一种RFID检测系统实时信号处理技术的实现

摘要

For the requirements of high speed and high performance in RFID detection system design, the three real-time signal processing algorithm, are proposed, including SSB signal generating algorithm of low complexity RFID system, RFID reversed signal receiving algorithm based on the self-adaption reversed-difference algorithm, and RFID reversed signal receiving algorithm with system noise constraint. The comprehensive application of the above methods and actual test indicate that the performance of RFID detection system with the above technologies is significantly improved, and reaches the desired targets, thus indicating that the proposed technology is successful and could solve the problems of real-time interaction, real-time demodulation and real-time signal generation of between RFID tag and reader.%针对实际设计RFID检测系统时对实时信号处理技术高速率与高性能的要求,提出了低复杂度的RFID系统SSB信号生成方法、基于自适应反向差分算法的RFID反向信号接收方法和抑制系统噪声的RFID反向信号接收方法等三种实时信号处理方法.通过对上述方法的综合应用,经过实际检测得出结论:应用以上技术的RFID检测系统性能指标显著提高,达到了预期效果,从而证明所提技术实现成功解决了射频识别标签与读写器之间实时交互、实时解调和实时信号生成等问题.