Analysis of Duobinary Encoding for CPM Signals
Résumé
In this paper, we investigate the effect of using a duobinary
encoder on binary continuous phase modulations (CPM).
This technique transforms the binary symbols into ternary
ones using a specific mapping and has been adopted for linear
modulation schemes. We show that applying this encoder
to binary CPM increases the spectrum efficiency of
the signal and keeps a theoretical bit error rate performance
close to the binary case.