equalizer in matlab

Started by Peter Simpson March 23, 2010
It seems that the training symbols have to use the same modulation as
the data symbols.  Is there any way that I can use different
modulations?  say QPSK for training and 16QAM for data.  I tried
equalizing the two parts separately with a constellation change in
between.  The shape of the equalized constellation seems correct, but
it is compressed. Of course the demodulation result is wrong.