A novel QAM joint frequency-phase carrier recovery method

Liu, Qijia; Yang, Zhixing; Song, Jian; Pan, Ching‐Tsai

doi:10.1109/icact.2006.206297

Cited by 3 publications

(1 citation statement)

References 10 publications

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“…The polarity decision algorithm [4] uses DD algorithm and power detector module to enhance the acquisition range. A joint frequency-phase carrier recovery loop in [5] can greatly reduce the estimation variance and is useful in the low SNR region. The PFD with an improved track and hold algorithm in [6] can acquire frequency offsets up to 400 kHz and increases the acquisition speed maximum by six times.…”

Section: Introductionmentioning

confidence: 99%

Research on Carrier Recovery Algorithm for High-Order QAM over Digital Cable TV Monitoring System

Wang¹,

Yan²

2012

AMM

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A new structure of carrier recovery loop for high-order QAM is proposed in this paper, and applied in digital cable TV monitoring system. The structure operates in two modes with variable loop bandwidths, has the advantage of increasing convergence speed and minimizing the lock error, meanwhile, optimises the phase detection mode for the weighted DD algorithm to attain the fast recovery. Simulation results show that the algorithm is practicable and effective, and the carrier loop can capture up to 40% frequency offset of the symbol rate quickly and accurately.

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Section: Introductionmentioning

confidence: 99%

Research on Carrier Recovery Algorithm for High-Order QAM over Digital Cable TV Monitoring System

Wang¹,

Yan²

2012

AMM

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Parallel Carrier Recovery in All-Digital Receiver

Wang

Zhang

Yang

2009

2009 5th International Conference on Wireless Communications, Networking and Mobile Computing

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An adaptive algorithm for reducing phase error in digital carrier recovery for high-order QAM signals

Bornoosh

Nabavi

2010

IEICE Electron. Express

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This paper describes an adaptive software aided technique for phase error reduction in digital carrier recovery (CR) for high-order Quadrature Amplitude Modulation (QAM). Simulations and analytical results illustrate a phase error variance improvement of at least 30 dB compared to conventional CR, leading to more than 3 dB processing gain enhancement for high-order QAM, using the simple 4 th power phase estimation technique. The new technique can be employed to improve the performance of any CR loop, at the cost of slight complexity overhead independent of the modulation order.

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A novel QAM joint frequency-phase carrier recovery method

Cited by 3 publications

References 10 publications

Research on Carrier Recovery Algorithm for High-Order QAM over Digital Cable TV Monitoring System

Research on Carrier Recovery Algorithm for High-Order QAM over Digital Cable TV Monitoring System

Parallel Carrier Recovery in All-Digital Receiver

An adaptive algorithm for reducing phase error in digital carrier recovery for high-order QAM signals

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