FXCORR Correlation
y = FXCORR(x, h) correlates x and h.
It works with x and h being of any dimensionality. When only one argument is given,
the auto-correlation is computed.
The accuracy of the conv and xcorr operators depends on the sampling. Peaks should
be describes with at least 5 points underneath.
This is the same as calling
fconv(x,h, 'correlation');
x = input vector (signal)
h = input vector (filter)
shape = optional shape of the return value
full Returns the full two-dimensional correlation.
same Returns the central part of the correlation of the same size as x.
valid Returns only those parts of the correlation that are computed
without the zero-padded edges. Using this option, y has size
[mx-mh+1,nx-nh+1] when all(size(x) >= size(h)).
pad Pads the x signal by replicating its starting/ending values
in order to minimize the correlation side effects.
center Centers the h filter so that correlation does not shift
the x signal.
normalize Normalizes the h filter so that the correlation does not
change the x signal integral.
background Remove the background from the filter h (subtracts the minimal value)
deconv Performs a deconvolution/decorrelation
ex: c=fxcorr(a,b);
See also FCONV, CONV, CONV2, FILTER, FILTER2, FFT, IFFT
Version: Aug. 22, 2017
(c) E.Farhi, ILL. License: EUPL.