Comparative Study of Influence of Noise on Power Frequency Estimation of Sine wave Using Interpolation FFT

Author:

Wen He1,Meng Zhuo1,Teng Zhaosheng1,Guo Siyu1,Yang Yuxiang2

Affiliation:

1. College of Electrical and Information Engineering, Hunan University, P. R. China

2. School of Mechanical and Precision Instrument Engineering, Xi'an University of Technology, P. R. China

Abstract

This paper compares performances of frequency estimations provided by different interpolation fast Fourier transform (FFT) algorithms under white Gaussian noises. Firstly, accuracies of frequency estimation algorithms are evaluated by deriving analytical expressions of variances of frequency estimation. Then, theoretical results are validated by means of computer simulations. It is shown that the trade-off between biases and variances of frequency estimation is unavoidable. From both theoretical and simulation results, it can be concluded that variances of frequency estimation are proportional to the noise variance and inverse proportional to the length of FFT.

Publisher

World Scientific Pub Co Pte Lt

Subject

General Physics and Astronomy,General Mathematics

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1. Comparative of Influence of Noise on Frequency Estimation Provided by Three Points Interpolated Discrete Fourier Transform;Fluctuation and Noise Letters;2020-11-19

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3. Fine Frequency Acquisition Scheme in Weak Signal Environment for a Communication and Navigation Fusion System;Electronics;2019-07-25

4. Prior Rough Estimation and Trigonometric Decomposition Method for Frequency Estimation of Sine Wave Distorted by Noise;Fluctuation and Noise Letters;2019-01-09

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