Function: expwave

EXPWAVE   Complex exponential wave
  Usage:  h=expwave(L,m);
          h=expwave(L,m,cent);

  EXPWAVE(L,m) returns an exponential wave revolving m times around the
  origin. The collection of all waves with wave number m=0,...,L-1
  forms the basis of the discrete Fourier transform.

  The wave has absolute value 1 everywhere. To get an exponential wave
  with unit l^2-norm, divide the wave by sqrt(L). This is the
  normalization used in the DFT function.

  EXPWAVE(L,m,cent) makes it possible to shift the sampling points by
  the amount cent. Default is cent=0.
 

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

See also: dft, pchirp.

Package: ltfat