A New Carrier Recovery Loop for High-Order Quadrature Amplitude Modulation(Transmission Systems and Transmission Equipment for Communications)

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概要

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• In this paper, we present a new all-digital carrier recovery loop for high-order quadrature amplitude modulation (QAM) signal constellations. The proposed approach is a blind phase-frequency detector structure that consists of a phase detector, a phase offset estimator, a frequency offset estimator, and a digital control oscillator. Compared to previous related approaches, the proposed algorithm provides a wider acquisition range and a more accurate estimation of frequency and phase offsets. These features are demonstrated by simulation results of the DOCSIS (Data-Over-Cable Service Interface Specifications) cable modem system.

• 社団法人電子情報通信学会の論文
• 2005-11-01

著者

• Ouyang Yuan

  Department Of Electrical Engineering Chang Gung University

• WANG Chin-Liang

  Institute of Communications Engineering, National Tsing Hua University

• Wang Chin‐liang

  National Tsing Hua Univ. Hsinchu Twn

• Ouyang Yuan

  Chang Gung Univ. Taoyuan Twn

関連論文

• Self-Calibration of a Phase-Shifting Adapter for Fizeau Interferometers
• Low-Complexity SLM and PTS Schemes for PAPR Reduction in OFDM Systems
• A New Carrier Recovery Loop for High-Order Quadrature Amplitude Modulation(Transmission Systems and Transmission Equipment for Communications)

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