상세정보
학술지
Full Constellation Phase Detector for Carrier Recovery in High-order QAM Systems
- 발행일
- 200804
- 출처
- Electronics Letters, v.44 no.8, pp.1-2
- ISSN
- 0013-5194
- 출판사
- IET
- 협약과제
- 07MR2600, 하향 1Gbps 디지털 케이블 송수신 시스템 개발, 이수인
- 초록
- A full constellation phase detector that improves carrier acquisition performance in high-order quadrature amplitude modulation (QAM) is proposed. The weighting function of the phase detector is mathematically derived, and simulated phase detector characteristics are presented for 256QAM. The results of an experimental evaluation are also reported, which show that the carrier recovery loop based on the proposed phase detector has a large frequency acquisition range and low phase tracking error in high-order QAM. © The Institution of Engineering and Technology 2008.
- KSP 제안 키워드
- Carrier acquisition, Phase tracking, QAM systems, Quadrature-amplitude modulation(QAM), Tracking error, acquisition performance, carrier recovery, experimental evaluation, frequency acquisition, high-order QAM, phase detector(PD)