In a UHF passive RFID system, a reader transmits an unmodulated continuous wave (CW) to tags, which not only provides energy to tags but also serves as the carrier of tag backscatter signals.
在超高频射频辨识系统里,读取器传送未调变过
连续波讯号
,其不但可提供能量
也作为
反向散射讯号的载波。
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