MATLAB高阶累积量工具箱,包含内容有:
Higher-Order Spectrum Estimation: conventional methods
% cum2x - Estimates cross-covariance
% cum3x - Estimates third-order cross-cumulants
% cum4x - Estimates fourth-order cross-cumulants
% cumest - Estimates auto-cumulants, orders two, three, or four
% (cum2est, cum3est, cum4est are sub-ordinate routines)
% bicoher - Estimates bicoherence, direct method
% bicoherx - Estimates cross-bicoherence, direct method
% bispecd - Bispectrum estimation (direct method)
% bispecdx - Cross-Bispectrum estimation (direct method)
% bispeci - Bispectrum estimation (indirect method)
% glstat - Gaussianity-Linearity detection statistics (Hinich test)
%
% Higher-Order Spectrum Estimation: parametric methods
% armaqs - Estimates ARMA parameters via q-slice algorithm
% armarts - Estimates ARMA parameters via residual time-series algorithm
% armasyn - Generates ARMA synthetics
% arorder - Estimates AR order
% arrcest - Estimates AR parameters using correlation &/or cumulants
% bispect - Theoretical bispectrum of an ARMA process
% cumtrue - Computes theoretical (true) cumulants of ARMA processes
% maest - Estimates MA parameters (GM algorithm)
% maorder - Estimates MA order
% rpiid - Generates a sequence of i.i.d. random variables, various p.d.f.'s
% trispect - Computes 2-D slice of true trispectrum of ARMA process
%
% Quadratic Phase Coupling (QPC)
% qpcgen - Generates quadratically-phase coupled harmonics in noise
% qpctor - Detection of quadratic phase coupling via the TOR method
%
% Second-Order Volterra Systems
% nlgen - Computes the output of a second-order Volterra system
% nlpow - Power's method for parameters of 2nd-order Volterra system
% nltick - Tick 's method for parameters of 2nd-order Volterra system
%
% Harmonic Retrieval
% harmest - Estimates frequencies of harmonics
% harmgen - Generates harmonics in Gaussian (colored) noise
%
% Time-Delay Estimation (TDE)
% tde - Time-delay estimation using third-order cross cumulants
% tdeb - Time-delay estimation using third-order cross bispectrum
% tdegen - Generates synthetics for time-delay estimation
% tder - Time-delay estimation using cross-correlation
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% Array Processing - Direction of Arrival (DOA) estimation
% doa - Estimates number of sources and their bearings (cum2 or cum4)
% doagen - Synthetic generator for the DOA problem
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% Adaptive Linear Prediction
% ivcal - Computes instrumental variables (used by rivtr and rivdl)
% rivdl - Recursive instrumental variable algorithm: double-lattice filter
% rivtr - Recursive instrumental variable algorithm: transversal filter
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% Impulse Response (IR), Magnitude and Phase Retrieval
% biceps - Estimates impulse response via the bicepstrum method
% bicepsf - Estimates impulse response via the bicepstrum (FFT) method
% matul - Magnitude and phase retrieval (Matsuoka-Ulrych algorithm)
%
% Time-Frequency Distributions
% wig2 - Wigner spectrum
% wig2c - Wigner spectrum, with Choi-Williams type filtering
% wig3 - Wigner bispectrum, diagonal slice
% wig3c - Wigner bispectrum, with Choi-Williams type filtering
% wig4 - Wigner trispectrum, diagonal slice
% wig4c - Wigner trispectrum, with Choi-Williams type filtering
%
% Utilities
% hprony - Prony's method for modeling transients
% pickpeak - Picks peaks subject to a separation condition
% tls - Total Least Squares Solution to a set of linear equations
% trench - Trench recursion for non-symmetric Toeplitz matrices
%
% Demos and Quick Help
% hosahelp - One-line synopsis of all HOSA mfiles
% hosademo - A demo of the HOSA Toolbox
2022-11-29 14:51:24
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高阶累积量
1