We show that in the context of short-time signals the use of these discrete bases leads to a significant improvement in the estimation accuracy. We manage the ...
In this paper, the instantaneous frequency is approximated by polynomials while the amplitude is characterized by damped exponentials to connect directly to its ...
Jan 24, 2023 · In this report we model the EEG signal as a sum of sine waves. Each sine wave has a random frequency and a random amplitude.
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Instantaneous frequency (IF) estimate has important physical meaning for non-stationary signal. Traditional IF estimate methods were investigated, ...
Abstract—This paper introduces a new method for estimating modes in non-stationary mixture signals. First, we establish a connection between the short-time ...
Abstract: In signal processing, the estimation of instantaneous frequency is a kind of very important issue for non-stationary multi-component signal.
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Apr 1, 2015 · This paper presents an algorithm for estimating the instantaneous fundamental frequency of a noisy non-stationary periodic signal whose ...
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In this paper, we propose a novel method to adaptively estimate the IFs of nonstationary signals, even for weak components of the signals.
The authors developed an AR estimation procedure which specifically takes account of the signal nonstationarity, and arrived at a solution based on solving an ...
Feb 2, 2024 · This paper addresses the problem of estimating the instantaneous frequency (IF) and amplitude of the modes composing a non-stationary ...