상세정보
학술지
Study on the Reader Baseband Receiver Structure for the Demodulation of Subcarrier Signal in a Passive RFID Environment
- 발행일
- 201106
- 출처
- Microwave and Optical Technology Letters, v.53 no.6, pp.1264-1272
- ISSN
- 0895-2477
- 출판사
- John Wiley & Sons
- 협약과제
- 10MC2900, 개별물품 단위 응용을 위한 차세대 RFID 기술 개발, 채종석
- 초록
- In this article, we present a subcarrier demodulation structure to eliminate an undesirable DC-offset phenomenon, which may appear in the baseband of the reader receiver under passive radio frequency identification environment.To achieve the requirement, the primary feature of the proposed demodulation structure is to reconstruct the signal corrupted by the DC-offset phenomenon by creating peak signals from the corrupted signal. In the case of the Miller subcarrier signal, the phase inversion information in the symbol duration is used for generating the peak signal. It is shown that the proposed method can successfully detect valid data from the received signal, even when the received baseband signal is distorted by the DC-offset phenomenon. In addition, the performance of the proposed method is slightly better than or comparable to that of the well-known-matched filter-type baseband receiver in the band-limited channel environments. © 2011 Wiley Periodicals, Inc. Microwave Opt Technol Lett 53:1264-1272, 2011; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.25995 Copyright © 2011 Wiley Periodicals, Inc.
- KSP 제안 키워드
- Baseband receiver, DC-offset, Limited channel, Passive RFID, Passive radio frequency identification(RFID), Phase inversion, Radio Frequency(RF), Receiver Structure, band-limited, baseband signal, matched filter(MF)