New Procedure for Estimation of Amplitude and Phase of Analog Multiharmonic Signal Based on the Differential Irregular Samples

Petrović, Predrag

doi:10.1007/s11265-014-0892-1

Cited by 4 publications

(1 citation statement)

References 30 publications

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“…The accuracy of the proposed algorithm is within the limits that are attained in processing a signal of form defined in (10), in (Belega et al 2010;Agrež, 2005;Petrovic and Stevanovic, 2011;Petrovic, 2015), and better than the one presented in (Tse andLai, 2007, Kuseljevic, 2010;Petrovic, 2012b;Petrovic, 2012c).…”

Section: Fig 8 Comparison Of Estimation Errors Observed In Harmonics Phasementioning

confidence: 70%

A new method for estimation of multi-harmonic power signal parameters

Petrovič¹

2021

J Proc Ener Agri

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A systematic analytical procedure for simultaneous estimation of the fundamental frequency, the amplitudes and phases of harmonic waves was proposed in this paper. In order to reduce complexity in the calculation of unknown parameters, a completely new reduced analytical expression is derived, which enabled fast and precise estimation with a small numerical error. Individual sinusoidal components stand out from the input complex-harmonic signal with the filter with a finite-impulse response (FIR) comb filters. The algorithm that is proposed in the operation is based on the application of partial derivate of the processed and filtered input signal, after which it is performed weighted estimation procedure to better estimate the values size of the fundamental frequency, amplitude and the multi-sinusoid signal phase. The proposed algorithm can be used in the signal reconstruction and estimation procedures, spectral processing, in procedures for the identification of the system that is observed, as well as other important signal processing areas. Through the simulation check, the effectiveness of the proposed algorithm was assessed, which confirmed its high performance.

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