.BG
.FN cgt
.TL
Continuous Gabor Transform
.DN
Computes the continuous Gabor transform with Gaussian window.
.CS
cgt(input, nvoice, freqstep=(1/nvoice), scale=1, plot=TRUE)
.RA
.AG input
input signal (possibly complex-valued).
.AG nvoice
number of frequencies for which gabor transform
is to be computed.
.OA
.AG freqstep
Sampling rate for the frequency axis.
.AG scale
Size parameter for the window.
.AG plot
logical variable set to TRUE to display the modulus of the
continuous gabor transform on the graphic device.
.RT
continuous (complex) gabor transform (2D array).
.SE
.DT
The output contains the (complex) values of the gabor transform of the
input signal. The format of the output is
a 2D array (signal\_size x nb\_scales).
.SH REFERENCES
See discussion in text of "Practical Time-Frequency Analysis".
.SA
"cwt", "cwtp", "DOG" for continuous wavelet transforms.
"cwtsquiz" for synchrosqueezed wavelet transform.
.SH WARNING
freqstep must be less than 1/nvoice to avoid aliasing. freqstep=1/nvoice
corresponds to the Nyquist limit.
.EX
