Accurate Frequency Estimation Based On Three-Parameter Sine-Fitting With Three FFT Samples
نویسندگان
چکیده
منابع مشابه
Accurate Frequency Estimation Based on Three-parameter Sine-fitting with Three Fft Samples
This paper presents a simple DFT-based golden section searching algorithm (DGSSA) for the single tone frequency estimation. Because of truncation and discreteness in signal samples, Fast Fourier Transform (FFT) and Discrete Fourier Transform (DFT) are inevitable to cause the spectrum leakage and fence effect which lead to a low estimation accuracy. This method can improve the estimation accurac...
متن کاملGaussian Jitter-Induced Bias of Sine Wave Amplitude Estimation Using Three-Parameter Sine Fitting
In this paper, the bias on the estimated amplitude, which is caused by Gaussian jitter, is studied in case of the IEEE 1057 standard three-parameter sine-fitting method. Because no analytical study exists, this source of uncertainty is usually not considered. Nowadays, it is becoming more and more important due to the ever increasing sampling rates available in analog-todigital converters (ADCs...
متن کاملBias of Amplitude Estimation Using Three-Parameter Sine Fitting in the Presence of Additive Noise
The estimation of the amplitude of a sinewave using traditional sine fitting algorithms which are based on square error minimization is biased in the presence of additive noise contrary to what happens generally in linear regression problems. An approximate closed form expression for the estimation error as a function of sinewave amplitude, additive noise standard deviation and number of data p...
متن کاملAccurate Parameter Estimation for Unbalanced Three-Phase System
Smart grid is an intelligent power generation and control console in modern electricity networks, where the unbalanced three-phase power system is the commonly used model. Here, parameter estimation for this system is addressed. After converting the three-phase waveforms into a pair of orthogonal signals via the α β-transformation, the nonlinear least squares (NLS) estimator is developed for ac...
متن کاملFitting the Three-parameter Weibull Distribution by using Greedy Randomized Adaptive Search Procedure
The Weibull distribution is widely employed in several areas of engineering because it is an extremely flexible distribution with different shapes. Moreover, it can include characteristics of several other distributions. However, successful usage of Weibull distribution depends on estimation accuracy for three parameters of scale, shape and location. This issue shifts the attentions to the requ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Metrology and Measurement Systems
سال: 2015
ISSN: 2300-1941
DOI: 10.1515/mms-2015-0032