Browsing Work in progress by Subject "Fourier analysis; Nonparametric estimation; Specral analysis; Time-frequency distribution; Time-varying frequency Fourier transforms; Mathematical models; Polynomials; Problem solving; Spectrum analysis; Spurious signal noise; Time varying systems; Nonparametric frequency estimations; Time frequency distribution; Harmonic analysis"
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Browsing Work in progress by Subject "Fourier analysis; Nonparametric estimation; Specral analysis; Time-frequency distribution; Time-varying frequency Fourier transforms; Mathematical models; Polynomials; Problem solving; Spectrum analysis; Spurious signal noise; Time varying systems; Nonparametric frequency estimations; Time frequency distribution; Harmonic analysis"
The local polynomial approximation of time-varying phase is used in order to estimate the instantaneous frequency and its derivatives for a complex-valued harmonic signal given by discrete-time observations with a noise. ...