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.
在超高被动
辨识系统里,读取器传送未调变过
连续波讯号
标签,其不但可提供
标签也作为标签反向散
讯号的载波。