stftb
- stftb
- Overview of STFTb features — Scilab Time Frequency Toolbox
- Ambiguity plane function (C - toolbox)
- Caf2tfr — From ambiguity plane to time frequency plane
- Cambifunb — Ambiguity function
- Ctfrker — Time frequency representation kernel
- Miscellanaeous functions (C toolbox)
- Chtl — Hough transform for detection of lines in images
- Ctfrdist — Time frequency distance
- Ctfrreas — Time Frequency Representation reassignment
- Cwindow — Creates a window of length N with a given shape.
- Time-Frequency representations (C - Toolbox)
- Ctfrbj — Born-Jordan time-frequency distribution
- Ctfrbud — Butterworth time-frequency distribution
- Ctfrcw — Choi-Williams time-frequency distribution
- Ctfrgrd — Generalized rectangular time-frequency distribution
- Ctfrmh — Margenau-Hill time-frequency distribution
- Ctfrmhs — Margenau-Hill-Spectrogram time-frequency distribution
- Ctfrmmce — Minimum mean cross-entropy combination of spectrograms
- Ctfrpage — Page time-frequency distribution
- Ctfrpmh — Pseudo Margenau-Hill time-frequency distribution
- Ctfrppage — Pseudo Page time-frequency distribution
- Ctfrpwv — Pseudo Wigner-Ville time-frequency distribution
- Ctfrri — Rihaczek time-frequency distribution
- Ctfrridb — Reduced Interference Distribution with Bessel kernel
- Ctfrridbn — Reduced Interference Distribution with binomial kernel
- Ctfrridh — Reduced Interference Distribution with Hanning kernel
- Ctfrridt — Reduced Interference Distribution with Triangular kernel
- Ctfrrsp — Reassigned Spectrogram
- Ctfrsp — Spectrogram Time Frequency distribution of a signal X
- Ctfrspwv — Smoothed Pseudo Wigner-Ville time-frequency distribution
- Ctfrstft — Short time Fourier transform
- Ctfrwv — Wigner-Ville time-frequency distribution
- Ctfrzam — Zao-Atlas-Marks time-frequency distribution
- Ambiguity Functions
- ambifunb — Narrow-band ambiguity function
- ambifuwb — Wide-band ambiguity function
- Choice of the Instantaneous Amplitude
- amexpo1s — Generate one-sided exponential amplitude modulation
- amexpo2s — Generate bilateral exponential amplitude modulation
- amgauss — Generate gaussian amplitude modulation
- amrect — Generate rectangular amplitude modulation
- amtriang — Generate triangular amplitude modulation
- Bilinear Time-Frequency Processing in the Affine Class
- istfraff — returns true is method is
the name of an affine time frequency representation.
- lambdak — Evaluate lambda function for
Affine Wigner distribution.
- tfrbert — Unitary Bertrand time-frequency distribution.
- tfrdfla — D-Flandrin time-frequency distribution.
- tfrscalo — Scalogram, for Morlet or Mexican hat wavelet.
- tfrspaw — Smoothed Pseudo Affine
Wigner time-frequency distributions.
- tfrunter — Unterberger time-frequency distribution.
- Bilinear Time-Frequency Processing in the Cohen's Class
- tfrbj — Born-Jordan time-frequency distribution.
- tfrbud — Butterworth time-frequency distribution
- tfrcw — Choi-Williams time-frequency distribution
- tfrgrd — Generalized rectangular time-frequency distribution
- tfrmh — Margenau-Hill time-frequency distribution
- tfrmhs — Margenau-Hill-Spectrogram time-frequency distribution
- tfrmmce — Minimum mean cross-entropy combination of spectrograms
- tfrpage — Page time-frequency distribution
- tfrpmh — Pseudo Margenau-Hill time-frequency distribution
- tfrppage — Pseudo Page time-frequency distribution
- tfrpwv — Pseudo Wigner-Ville time-frequency distribution
- tfrri — Rihaczek time-frequency distribution.
- tfrridb — Reduced Interference Distribution with Bessel kernel.
- tfrridbn — Reduced Interference Distribution with a binomial kernel.
- tfrridh — Reduced Interference Distribution with Hanning kernel.
- tfrridt — Reduced Interference Distribution with triangular kernel.
- tfrsp — Spectrogram time-frequency distribution.
- tfrspbk — Smoothed Pseudo K-Bertrand
time-frequency distribution.
- tfrspwv — Smoothed Pseudo Wigner-Ville
time-frequency distribution.
- tfrwv — Wigner-Ville time-frequency distribution
- tfrzam — Zao-Atlas-Marks time-frequency distribution
- Frequency-Domain Processing
- ffmt — Fast Fourier Mellin Transform
- frpowerspec — Computes the energy spectrum of the signal
- frspec — Computes the spectrum of the signal
- iffmt — Inverse fast Mellin transform
- locfreq — Frequency localization caracteristics
- parafrep — parametric frequency representation of a signal
- sgrpdlay — Group delay estimation of a signal
- tftb_fft — matlab compatible fft
- tftb_ifft — matlab compatible ifft
- Choice of the Instantaneous Frequency
- fmconst — Signal with constant frequency modulation
- fmhyp — Signal with hyperbolic frequency modulation
- fmlin — Signal with linear frequency modulation
- fmodany — Signal with arbitrary frequency modulation
- fmpar — Parabolic frequency modulated signal
- fmpower — Signal with power-law frequency modulation
- fmsin — Signal with sinusoidal frequency modulation
- gdpower — Signal with power-law group delay
- if2phase — Generate the phase from the instantaneous frequency
- Linear Time-Frequency Processing
- tffilter — Time frequency filtering of a signal
- tfrgabor — Gabor representation of a signal
- tfristft — Inverse Short time Fourier transform
- tfrstft — Short time Fourier transform
- tfrsurf — extract from a time-frequency representation the biggest energy dots
- Modification
- scale — Scale a signal using the Mellin transform
- sigmerge — Add two signals with given energy ratio in dB
- Noise Realizations
- noisecg — Analytic complex gaussian noise
- noisecu — Analytic complex uniform white noise
- Other
- contwtgn — computes a continuous wavelet transform
- contwtgnmir — Continuous wavelet transform of mirrored 1-D signals
- correlmx — correlation matrix of a signal
- d2statio — Distance to stationarity
- disprog — Display progression of a loop
- divider — Find dividers of an integer
- dwindow — Derive a window
- fzero — solves the scalar nonlinear equation such that F(X) == 0
- gaussn — generates the order n derivative of the gaussian window, centered at frequency f0
- imextrac — imextrac(Image) extract and isolate dots in a binary image
- integ — Approximate 1D integral of a discrete signal
- integ2d — Approximate 2-D integral
- istfr1 — returns true is method is a time frequency representation of type 1 (frequencies >0 or <0)
- istfr2 — returns true is method is a time frequency representation of type 2 (only frequencies > 0)
- izak — Inverse Zak transform
- kaytth — Kay-Tretter filter computation
- odd — Round towards nearest odd value
- rem — Return the remainder of the division x/y
- rot90 — rotates the given 2-D array by 90 degrees
- umaxbert — Determination of the maximum value of u for Bertrand distribution
- umaxdfla — Determination of the maximum value of u for D-Flandrin distribution
- umaxunte — Determination of the maximum value of u for Unterberger distribution
- vecmodulo — Congruence of a vector
- zak — Zak transform
- Post-Processing or Help to the Interpretation
- friedman — FRIEDMAN Instantaneous frequency density
- holder — Estimate the Holder exponent through an affine TFR
- htl — Hough transform for detection of lines in images
- margtfr — Marginals and energy of a time-frequency representation
- midpoint — Mid-point construction used in the interference diagram
- momftfr — Frequency moments of a time-frequency representation
- momttfr — Time moments of a time-frequency representation
- plotsid — Schematic interference diagram of FM signals
- renyi — Measure Renyi information
- ridges — Extraction of ridges
- tfrideal — Ideal TFR for given instantaneous frequency laws
- Reassigned Time-Frequency Processing
- tfrrgab — Reassigned Gabor spectrogram time-frequency distribution
- tfrrmsc — Reassigned Morlet Scalogram time-frequency distribution
- tfrrpmh — Reassigned pseudo Margenau-Hill time-frequency distribution
- tfrrppag — Reassigned pseudo Page time-frequency distribution
- tfrrpwv — Reassigned pseudo Wigner-Ville distribution
- tfrrsp — Reassigned Spectrogram
- tfrrspwv — Reassigned smoothed pseudo Wigner-Ville distribution
- tfrrstan — Reassigned Stankovic distribution
- Choice of Particular Signals
- altes — Altes signal in time domain
- anaask — Amplitude Shift Keying (ASK) signal
- anabpsk — Binary Phase Shift Keying (BPSK) signal
- anafsk — Frequency Shift Keying (FSK) signal
- anapulse — Analytic projection of unit amplitude impulse signal
- anaqpsk — Quaternary Phase Shift Keying (QPSK) signal
- anasing — Lipschitz singularity
- anastep — Analytic projection of unit step signal
- atoms — Linear combination of elementary Gaussian atoms
- chirp — Evaluate a chirp signal at time t. A chirp signal is a frequency swept cosine wave
- dopnoise — Complex noisy doppler signal
- doppler — Generate complex Doppler signal
- griffitc — Test signal example C of Griffiths' paper
- klauder — Klauder wavelet in time domain
- mexhat — Mexican hat wavelet in time domain
- pulstran — pulse generation
- sawtooth — Generates a sawtooth wave
- tftb_window — Window generation
- Time-Domain Processing
- ifestar2 — Instantaneous frequency estimation using AR2 modelisation
- instfreq — Instantaneous frequency estimation
- loctime — Time localization caracteristics
- Visualization and backup
- plotifl — Plot normalized instantaneous frequency laws
- tfrparam — parametric time-frequency representation
- tfrqview — Quick visualization of time-frequency representations
- tfrsave — Save the parameters of a time-frequency representation
- tfrview — Visualization of time-frequency representations