自适应带宽全数字锁相环的设计与分析

2007 International Symposium on Intelligent Signal Processing and Communication Systems Pub Date : 2007-11-01 DOI:10.1109/ISPACS.2007.4445825

Y. Chau, Chen-Feng Chen, Kwn-Dai Tsai

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引用次数: 2

摘要

为了获得更好的锁相性能和更宽的锁相范围，本文提出并设计了自适应带宽全数字锁相环(AB-ADPLL)。使用AB-ADPLL，可以使用参数估计器根据输入频率自适应调整数字环路滤波器的参数。文中给出的设计实例和相应的仿真结果表明，AB-ADPLL优于非自适应ADPLL。

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Design and analysis of adaptive-bandwidth all-digital phase-locked loop

To obtain better locking performance and wider locking range, the adaptive-bandwidth all-digital phase-locked loop (AB-ADPLL) is proposed and designed in the paper. With the AB-ADPLL, the parameters of the digital loop filter can be adaptively adjusted using a parameter estimator in accordance with the input frequency. From the design example given in the context and corresponding simulation results, it is disclosed that the AB-ADPLL outperforms the non-adaptive ADPLL.

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2007 International Symposium on Intelligent Signal Processing and Communication Systems

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