Frequency and Offset Online Estimation of Sinusoidal Signals Based on High-Order Nonlinear Continuous Differentiator

WANG Hongwei; ZHANG Wei; ZUO Junyi; WANG Heping

doi:10.1049/cje.2017.01.007

Volume 26 Issue 3

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Article Navigation > Chinese Journal of Electronics > 2017 > 26(3): 579-584

WANG Hongwei, ZHANG Wei, ZUO Junyi, et al., “Frequency and Offset Online Estimation of Sinusoidal Signals Based on High-Order Nonlinear Continuous Differentiator,” Chinese Journal of Electronics, vol. 26, no. 3, pp. 579-584, 2017, doi: 10.1049/cje.2017.01.007

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WANG Hongwei, ZHANG Wei, ZUO Junyi, et al., “Frequency and Offset Online Estimation of Sinusoidal Signals Based on High-Order Nonlinear Continuous Differentiator,” Chinese Journal of Electronics, vol. 26, no. 3, pp. 579-584, 2017, doi: 10.1049/cje.2017.01.007

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Frequency and Offset Online Estimation of Sinusoidal Signals Based on High-Order Nonlinear Continuous Differentiator

doi: 10.1049/cje.2017.01.007

1.
School of Aeronautics, Northwestern Polytechnical University, Xi'an 710072, China;
2.
Experimental Aircraft Design and Flight Testing Laboratory of Shaanxi, Xi'an 710072, China

Funds: This work is supported by the National Natural Science Foundation of China (No.61473227, No.11472222), the Aerospace Technology Support Fund of China (No.2014-HT-XGD), the Natural Science Foundation of Shaanxi Province, China (No.2015JM6304), and the Aeronautical Science Foundation of China (No.20151353018).

More Information

Corresponding author: ZHANG Wei (corresponding author) was born in 1963. He received the B.S/M.S degrees in flight mechanics and Ph.D. degree in aircraft design from Northwestern Polytechnical University. He was invited as associate professor in the School of Creative Media, City University of Hong Kong during 2013-2014. (Email:weizhangxian@nwpu.edu.cn)
Received Date: 2015-08-09
Rev Recd Date: 2016-07-13
Publish Date: 2017-05-10

Abstract

Abstract

Real-time parameter identification of sinusoidal signals is an essential research topic due to its broad utilization in both theoretical studies and engineering practice. A tracking differentiator based online estimation framework has been proposed to simultaneously identify frequencies and offset of given multi-sinusoidal signal. Tracking differentiator is exploited in presented framework to track the time derivatives of measurements which are then utilized to estimate the frequencies and offset. We introduce a tracking differentiator called high-order nonlinear continuous differentiator into the framework, giving birth to a new estimation algorithm. Comparative experiments on both single and two sinusoidal signal are simulated, indicating the superiority of proposed method on both convergent speed and estimation accuracy.
- Frequency estimation,
- Offset estimation,
- High-order nonlinear continuous differentiator,
- Sinusoidal signal,
- Multi-sinusoidal signal

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References(25)

References

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