Linear prediction approach to oversampling parameter estimation for multiple complex sinusoids
نویسندگان
چکیده
The problem of oversampling parameter estimation for noisy sinusoidal signals is addressed. We first extend the weighted least squares (WLS) approach to the complex sinusoids. Then the oversampling weighted least squares (OSWLS) estimator is proposed based on data decimation. Estimation performance of the OSWLS method is analyzed via theoretical and simulation studies. Results are also compared to those of the WLS and decimative unitary ESPRIT methods as well as Cramér–Rao lower bound. & 2011 Elsevier B.V. All rights reserved.
منابع مشابه
Linear Prediction Approach to Oversampling Parameter Estimation for Multiple Complex Sinusoids.dvi
The problem of oversampling parameter estimation for noisy sinusoidal signals is addressed. We first extend the weighted least squares (WLS) approach to the complex sinusoids. Then the oversampling weighted least squares (OSWLS) estimator is proposed based on data decimation. Estimation performance of the OSWLS method is analyzed via theoretical and simulation studies. Results are also compared...
متن کاملSubspace approach for two-dimensional parameter estimation of multiple damped sinusoids
In this paper, we tackle the two-dimensional (2-D) parameter estimation problem for a sum of K ≥ 2 real/complex damped sinusoids in additive white Gaussian noise. According to the rank-K property of the 2-D noise-free data matrix, the damping factor and frequency information is contained in the K dominant left and right singular vectors. Using the sinusoidal linear prediction property of these ...
متن کاملAccurate estimation of common sinusoidal parameters in multiple channels
Parameter estimation for exponentially damped complex sinusoids in the presence of white noise using multiple channel measurements is addressed. More precisely, we are interested in the damping factor and frequency parameters which are common among all channels. By exploiting linear prediction and weighted least squares technique, an iterative algorithm is devised to extract the common dynamics...
متن کاملLpsvd Algorithm for Parameter Estimation of Damped Sinusoids
This article is focused on estimation of initial amplitude, frequency, initial phase and damping factor of sinusoids contained in signal of nuclear magnetic resonance (NMR). It describes algorithm called LPSVD, based on singular value decomposition signal matrix and linear prediction. In Practical results appendix observations are issued and possibility of noise suppression is outlined.
متن کاملHarmonics Estimation in Power Systems using a Fast Hybrid Algorithm
In this paper a novel hybrid algorithm for harmonics estimation in power systems is proposed. The estimation of the harmonic components is a nonlinear problem due to the nonlinearity of phase of sinusoids in distorted waveforms. Most researchers implemented nonlinear methods to extract the harmonic parameters. However, nonlinear methods for amplitude estimation increase time of convergence. Hen...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
- Signal Processing
دوره 92 شماره
صفحات -
تاریخ انتشار 2012