一种基于自适应陷波带宽的ANF振荡器用于单信号检测

Ho-En Liao
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引用次数: 0

摘要

ANF(自适应陷波器)已被证明是非常有效的实时单信号检测。在频率估计的收敛速度和均方误差(mse)方面,仍有值得进一步研究的地方。本文提出了一种基于数字振荡器模型的反滤波器,它不仅能适应陷波滤波器的陷波频率,而且能适应陷波滤波器的陷波带宽。这使得所提出的ANF能够以更快的收敛速度和更好的估计mse捕获单个信号。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
An oscillator based ANF with adaptable notch-bandwidth for singletone detection
ANF (Adaptive Notch Filer) has been shown to be very efficient for real-time singletone detection. There are still works worthy of studying to further improve its performance, specifically, convergence rate and mse (mean-square-error) in frequency estimation. In this paper, an ANF basing on digital oscillator model is proposed, which is capable of adapting not only the notch frequency as usual but also the notch-bandwidth of a NF (Notch Filter). This makes the proposed ANF be able to trapping a singletone with faster convergence rate as well as better estimation mse.
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