TFR工具箱contents.doc

Time-Frequency Toolbox.
Version 1.0 January 1996
Copyright (c) 1994-96 by CNRS (France) - RICE University (USA).

Signal Generation Files

sigmerge - Add two signals with given energy ratio in dB.

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.

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 - Signal with parabolic frequency modulation.
fmpower - Signal with power-law frequency modulation.
fmsin - Signal with sinusoidal frequency modulation.
gdpower - Signal with a power-law group delay.

Choice of Particular Signals
altes - Altes signal in time domain.
anaask - Amplitude Shift Keyed (ASK) signal.
anabpsk - Binary Phase Shift Keyed (BPSK) signal.
anafsk - Frequency Shift Keyed (FSK) signal.
anapulse - Analytic projection of unit amplitude impulse signal.
anaqpsk - Quaternary Phase Shift Keyed (QPSK) signal.
anasing - Lipschitz singularity.
anastep - Analytic projection of unit step signal.
atoms - Linear combination of elementary Gaussian wave packets.
dopnoise - Generate complex Doppler random signal.
doppler - Generate complex Doppler signal.
klauder - Klauder wavelet in time domain.
mexhat - Mexican hat wavelet in time domain.
tftb_window - Window generation (previously window.m).

Addition of Noise
noisecg - Analytic complex gaussian noise.
noisecu - Analytic complex uniform noise.

Modification
scale - Scale signal using Mellin transform.

Processing Files

Time-Domain Processing
ifestar2 - Instantaneous frequency estimation using AR2 modelisation.
instfreq - Instantaneous frequency estimation.
loctime - Time localization characteristics.

Frequency-Domain Processing
fmt - Fast Mellin transform
ifmt - Inverse fast Mellin transform.
locfreq - Frequency localization characteristics.
sgrpdlay - Group delay estimation.

Linear Time-Frequency Processing
tfrgabor - Gabor representation.
tfrstft - Short time Fourier transform.

Bilinear Time-Frequency Processing in the Cohen's Class
tfrbj - Born-Jordan distribution.
tfrbud - Butterworth distribution.
tfrcw - Choi-Williams distribution.
tfrgrd - Generalized rectangular distribution.
tfrmh - Margenau-Hill distribution.
tfrmhs - Margenau-Hill-Spectrogram distribution.
tfrmmce - MMCE combination of spectrograms.
tfrpage - Page distribution.
tfrpmh - Pseudo Margenau-Hill distribution.
tfrppage - Pseudo Page distribution.
tfrpwv - Pseudo Wigner-Ville distribution.
tfrri - Rihaczek distribution.
tfrridb - Reduced interference distribution (Bessel window).
tfrridh - Reduced interference distribution (Hanning window).
tfrridn - Reduced interference distribution (binomial window).
tfrridt - Reduced interference distribution (triangular window).
tfrsp - Spectrogram.
tfrspwv - Smoothed Pseudo Wigner-Ville distribution.
tfrwv - Wigner-Ville distribution.
tfrzam - Zhao-Atlas-Marks distribution.

Bilinear Time-Frequency Processing in the Affine Class
tfrbert - Unitary Bertrand distribution.
tfrdfla - D-Flandrin distribution.
tfrscalo - Scalogram, for Morlet or Mexican hat wavelet.
tfrspaw - Smoothed Pseudo Affine Wigner distributions.
tfrunter - Unterberger distribution, active or passive form.

Reassigned Time-Frequency Processing
tfrrgab - Reassigned Gabor spectrogram.
tfrrmsc - Reassigned Morlet Scalogram time-frequency distribution.
tfrrpmh - Reassigned Pseudo Margenau-Hill distribution.
tfrrppag - Reassigned Pseudo Page distribution.
tfrrpwv - Reassigned Pseudo Wigner-Ville distribution.
tfrrsp - Reassigned Spectrogram.
tfrrspwv - Reassigned Smoothed Pseudo WV distribution.

Ambiguity Functions
ambifunb - Narrow band ambiguity function.
ambifuwb - Wide band ambiguity function.

Post-Processing or Help to the Interpretation
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.
MIDSCOMP - 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 frequency laws.

Visualization & backup
plotifl - Plot normalized instantaneous frequency laws.
tfrqview - Quick visualization of time-frequency representations.
tfrview - Visualization of time-frequency representations.
tfrparam - Return the paramaters needed to display (or save) a TFR.
tfrsave - Save the parameters of a time-frequency representation.

Other
disprog - Display progression of a loop.
divider - Find dividers of integer such that product equals integer.
dwindow - Derive a window.
integ - Approximate integral.
integ2d - Approximate 2-D integral.
izak - Inverse Zak transform.
istfr1 - returns true if a distribution is Cohen's class type 1 (spectrogram)
istfr2 - returns true if a distribution is Cohen's class type 2 (Wigner-Ville)
istfraff - returns true is a distribution is an affine class member
kaytth - Kay-Tretter filter computation.
modulo - Congruence of a vector.
movcw4at - Four atoms rotating, analyzed by the Choi-Williams distribution.
movpwdph - Influence of a phase-shift on the interferences of the pWVD.
movpwjph - Influence of a jump of phase on the interferences of the pWVD.
movsc2wv - Movie illustrating the passage from the scalogram to the WVD.
movsp2wv - Movie illustrating the passage from the spectrogram to the WVD.
movwv2at - Oscillating structure of the interferences of the WVD.
odd - Round towards nearest odd value.
sigmerge - Add two signals with given energy ratio in dB.
zak - Zak transform.

Overloaded methods:
H5Z.Contents
H5T.Contents
H5S.Contents
H5R.Contents
H5P.Contents
H5ML.Contents
H5I.Contents
H5G.Contents
H5F.Contents
H5E.Contents
H5D.Contents
H5A.Contents
H5.Contents
timer/Contents
serial/Contents
instrument/Contents
icinterface/Contents
mmreader/Contents
audiorecorder/Contents
audioplayer/Contents
commscope.Contents
dioline/Contents
digitalio/Contents
daqdevice/Contents
daqchild/Contents
aochannel/Contents
analogoutput/Contents
analoginput/Contents
aichannel/Contents
rsmd/Contents
resultset/Contents
drivermanager/Contents
driver/Contents
dmd/Contents
dbtbx/Contents
database/Contents
cursor/Contents
yahoo/Contents
idc/Contents
bloomberg/Contents
eml.Contents
strel/Contents
videosource/Contents
videoinput/Contents
imaqdevice/Contents
imaqchild/Contents
visa/Contents
udp/Contents
tcpip/Contents
serial/Contents
iviconfigurationstore/Contents
instrument/Contents
icinterface/Contents
icgroup/Contents
icdevice/Contents
gpib/Contents
xregpointer/Contents
mbcmodel.Contents
contwostage/Contents
conrange/Contents
coninputfactor/Contents
opcroot/Contents
opcda/Contents
daitem/Contents
dagroup/Contents
rfmodel.Contents
rfdata.Contents
rfckt.Contents
rfchart.Contents