文章基本信息

标题：Design of Reader Baseband Receiver Structure for Demodulating Backscattered Tag Signal in a Passive RFID Environment
本地全文：下载
作者：Bae, Ji-Hoon ; Choi, Won-Kyu ; Park, Chan-Won 等
期刊名称：ETRI Journal
印刷版ISSN：1225-6463
电子版ISSN：2233-7326
出版年度：2012
卷号：34
期号：2
页码：147-158
DOI：10.4218/etrij.12.0111.0365
语种：English
出版社：Electronics and Telecommunications Research Institute
摘要：In this paper, we present a demodulation structure suitable for a reader baseband receiver in a passive radio frequency identification (RFID) environment. In a passive RFID configuration, an undesirable DC-offset phenomenon may appear in the baseband of the reader receiver, which can severely degrade the performance of the extraction of valid information from the received tag signal. To eliminate this DC-offset phenomenon, the primary feature of the proposed demodulation structures for the received FM0 and Miller subcarrier signals is to reconstruct the signal corrupted by the DC-offset phenomenon by creating peak signals from the corrupted signal. It is shown that the proposed method can successfully detect valid data, even when the received baseband signal is distorted by the DC-offset phenomenon.
关键词：RFID;DC-offset phenomenon;demodulation structure;ISO 18000-6C