Function: iqam4

IQAM4  Inverse QAM of order 4

   IQAM4(xi) demodulates a signal mapping the input coefficients to the
   closest complex root of unity, and returning the associated bit
   pattern. This is the inverse operation of QAM4.

Url: http://ltfat.github.io/doc/sigproc/iqam4.html

See also: qam4, demo_ofdm.

Package: ltfat