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Spectral Analysis

Parametric and nonparametric methods

System Objects

dsp.SpectrumAnalyzer Display frequency spectrum of time-domain signals
dsp.SpectrumEstimator Estimate power spectrum or power density spectrum
dsp.CrossSpectrumEstimator Estimate cross-spectral density
dsp.TransferFunctionEstimator Estimate transfer function
dsp.BurgAREstimator Estimate of autoregressive (AR) model parameters using Burg method
dsp.BurgSpectrumEstimator Parametric spectral estimate using Burg method

Blocks

Burg Method Power spectral density estimate using Burg method
Covariance Method Power spectral density estimate using covariance method
Cross-Spectrum Estimator Estimate cross-power spectrum density
Discrete Transfer Function Estimator Compute estimate of frequency-domain transfer function of system
Magnitude FFT Compute nonparametric estimate of spectrum using periodogram method
Modified Covariance Method Power spectral density estimate using modified covariance method
Periodogram Power spectral density or mean-square spectrum estimate using periodogram method
Short-Time FFT Nonparametric estimate of spectrum using short-time, fast Fourier transform (FFT) method
Spectrum Analyzer Display frequency spectrum of time-domain signals
Spectrum Estimator Estimate power spectrum or power-density spectrum
Yule-Walker Method Power spectral density estimate using Yule-Walker method
Burg AR Estimator Compute estimate of autoregressive (AR) model parameters using Burg method
Covariance AR Estimator Compute estimate of autoregressive (AR) model parameters using covariance method
Modified Covariance AR Estimator Compute estimate of autoregressive (AR) model parameters using modified covariance method
Yule-Walker AR Estimator Compute estimate of autoregressive (AR) model parameters using Yule-Walker method

Topics

Spectral Analysis

Spectral analysis is the process of estimating the power spectral density (PSD) of a signal from its time-domain representation.

Estimate the Power Spectral Density in MATLAB

Create a model capable of calculating the power spectrum estimate of a speech signal

Estimate the Power Spectral Density in Simulink

Create a model capable of calculating the power spectrum estimate of a speech signal

View the Spectrogram Using Spectrum Analyzer

Modify the model to calculate and display the spectrogram of a speech signal

Estimate the Transfer Function of an Unknown System

You can estimate the transfer function of an unknown system based on the system's measured input and output data.

Variable-Size Signal Support DSP System Objects

List of System objects which support variable-sized signals in DSP System Toolbox™.

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