The Adaptive Filter IP Core can be used in a communication system with
modulation up to 1024-QAM. The RTL Code Generator Toolbox will generate the complete RTL
and testbench files for the selected configuration.
The Feed-Forward Equalizer is dealing with
the pre-cursor Inter-Symbol Interferences. For elimination of the
post-cursor ISI a Decision Feedback Equalizer was employed.
The adaptation algorithms implemented are: CMA (blind adaptation) and LMS
(direct decision adaptation). For the DFE the Sign-Regressor LMS algorithm is used.
The adaptation starts in CMA mode and is switched to LMS mode when the eye is opened.
A finite state machine is used to control the adaptation process.