Function: pxcorr

PXCORR  Periodic cross correlation
  Usage:  h=pxcorr(f,g)

  PXCORR(f,g) computes the periodic cross correlation of the input
  signals f and g. The cross correlation is defined by

              L-1
     h(l+1) = sum f(k+1) * conj(g(k-l+1))
              k=0

  In the above formula, k-l is computed modulo L.

  PXCORR(f,g,'normalize') does the same, but normalizes the output by
  the product of the l^2-norm of f and g.

Url: http://ltfat.github.io/doc/fourier/pxcorr.html

See also: dft, pfilt, involute.

Package: ltfat