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DFE Adaption with 1/0 training pattern (Read 2613 times)
neoflash
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Mixed-Signal
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Posts: 397
DFE Adaption with 1/0 training pattern
Mar 01
st
, 2009, 8:15pm
I have got a question about DFE (decision feedback equalizer) adaption with a repetitive pattern such as 10.
This recurssive pattern would make DFE has numerous combinations of stable status of coefficients of feedback taps. When real random bit pattern comes, the adaption has to restart again.
Is there any way to solve this issue? Any published paper address this concern?
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sugar
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Posts: 54
Re: DFE Adaption with 1/0 training pattern
Reply #1 -
Mar 1
st
, 2009, 11:23pm
I think at training mode, the adaptation should not be enabled.
During normal operation, say with random patterns, the adaptation loop
should be very slow to average possible bad patterns like 1010 pattern.
--River
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