Study on IIR Adaptive Frequency Estimator in the Multi-Frequency Estimation

Abstract:

Propose a use of IIR adaptive frequency estimator to achieve multi-frequency estimation algorithm. Analysis IIR filter characteristics, indicating that the second-order IIR model has a single peak characteristics, to achieve stable convergence; while the higher-order IIR model polymorphic, so the need for the estimated parameters are initialized. More traditional phase locked loop algorithm, which has no mixing components, to achieve the advantages of full-band frequency estimation, frequency estimation accuracy under the same environment and phase locked loop fairly.

• Periodical: Applied Mechanics and Materials (Volumes 602-605)
• Pages: 3731-3734
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.602-605.3731
• Online since: August 2014
• Authors: Dong Xu Zhu*, Jiu Ying Zhi, Gang Fu
• Keywords: Adaptive Frequency Estimation, Frequency Difference

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