Identification of a sinusoidal signal

Research output: Chapter in Book/Report/Conference proceedingConference contribution

6 Citations (Scopus)

Abstract

This paper discusses the online estimation problem of frequency, amplitude and initial phase of a measured sinusoidal signal by using the adaptive method and filter theory. The proposed method is based on an identity between a sinusoidal signal and its second order derivative. Firstly, the frequency is estimated by using the filters of the measured signal. Secondly, the derivative of the measured signal is estimated. Thirdly, by using the estimates of the frequency and the first order derivative of the signal, the amplitude is estimated. Finally, the initial phase is estimated. The estimation errors converge to zero exponentially. Simulation results show the effectiveness of the proposed new method. The robustness to measurement noises is also demonstrated by computer simulation.

Original languageEnglish
Title of host publicationProceedings of the SICE Annual Conference
Pages513-516
Number of pages4
Publication statusPublished - 2004
EventSICE Annual Conference 2004 - Sapporo
Duration: 2004 Aug 42004 Aug 6

Other

OtherSICE Annual Conference 2004
CitySapporo
Period04/8/404/8/6

Fingerprint

Derivatives
Error analysis
Computer simulation

Keywords

  • Adaptive method
  • Identification
  • Sinusoidal signal

ASJC Scopus subject areas

  • Engineering(all)

Cite this

Chen, X. (2004). Identification of a sinusoidal signal. In Proceedings of the SICE Annual Conference (pp. 513-516). [WPI-8-1]

Identification of a sinusoidal signal. / Chen, Xinkai.

Proceedings of the SICE Annual Conference. 2004. p. 513-516 WPI-8-1.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Chen, X 2004, Identification of a sinusoidal signal. in Proceedings of the SICE Annual Conference., WPI-8-1, pp. 513-516, SICE Annual Conference 2004, Sapporo, 04/8/4.
Chen X. Identification of a sinusoidal signal. In Proceedings of the SICE Annual Conference. 2004. p. 513-516. WPI-8-1
Chen, Xinkai. / Identification of a sinusoidal signal. Proceedings of the SICE Annual Conference. 2004. pp. 513-516
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