20.500.12556/RUL-173576 An improvement of the nonparametric frequency estimation below two signal periods using two windows This article presents a method for improving the nonparametric frequency estimation of the fundamental periodicity of a multifrequency signal when a smaller number of periods are covered—up to two periods in the measurement time. The estimation procedure uses the weights of two Rife-Vincent I (RV1) windows on the same set of acquired signal samples and then uses a combination of two consecutive discrete Fourier transform (DFT) amplitude coefficients in the quotient. To reduce the harmonic influence, the technique of near-coherent frequency evaluation is used, and to reduce the interharmonic influence, a method can be added, where the rest of the signal is averaged after determining the periodic part of the signal. The simulation and experimental results obtained show a very good compromise between fast and accurate estimation. discrete Fourier transform (DFT) coefficients frequency interpolation maximum sidelobes decay (MSD) windows nonparametric estimation spectral distortion koeficienti diskretne Fourierjeve transformacije (DFT) frekvenca interpolacija okna največjega upada stranskih rež (MSD) neparametrična ocena spektralno popačenje true false true Angleški jezik Slovenski jezik Članek v reviji 2025-09-18 12:37:53 2025-09-18 12:37:58 2025-11-11 03:35:36 0000-00-00 00:00:00 2024 0 0 11 str. art. 6502111 Vol. 73 2024 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 621.3 1557-9662 10.1109/TIM.2024.3368492 192802563 An_Improvement_of_the_Nonparametric_Frequency_Estimation_Below_Two_Signal_Periods_Using_Two_Windows.pdf An_Improvement_of_the_Nonparametric_Frequency_Estimation_Below_Two_Signal_Periods_Using_Two_Windows.pdf 1 52D18FE7DD503D2B1925A65B78E78000 865b5b5972eae4eb59612a01d2f66e3ef3db91049782612d2b37c0dbaad6ac35 feee3794-947b-11f0-9328-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=218134 https://ieeexplore.ieee.org/document/10443633 1 5eb9aee8-947b-11f0-9328-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=218132 Fakulteta za elektrotehniko 0 0 0