中文摘要：

提出一种UHF甲类射频标签识别（RFID）阅读机的低采样率频移键控（FSK）的数值解码方法.该方法既适用于采样率高于检测信号频率2倍时对信号检测,也适用于采样率低于检测信号频率2倍时对信号检测,较好地解决了高符号率情况下采用低采样率并利用混叠信号对频移键控信号进行检测的问题,同时还解决了多信号碰撞检测的问题.

英文摘要：

A numerical decoding method using low sampling rate of frequency shift keying（FSK） on UHF radio frequency identification tags（RFID） readers is presented in this paper.This method is not only applicable to the signals detection as the signals sampling rate is twice higher than the frequency of signals detection,but also to the signals detection as the signals sampling rate is twice lower than the frequency of signals detection.It＇s a better solution when the symbol rate is very high but using low sampling rate and adopting aliasing signals for detecting frequency shift keying signals,and the multi-signals collision detection problems are also solved.