Channels Leading To Rapid Error Recovery For Decision Feedback Equalizers
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Kennedy, Rodney A.
Anderson, Brian D.O.
Bitmead, Robert R.
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When a decision feedback equalizer is used on a channel satisfying a simple passivity constraint (equivalently expressible in terms of gain-phase constraints) the error recovery time is finite, and thus recovery is rapid, regardless of the initial error state and the particular data sequence. This class of nontrivial channels includes cases of practical interest and identifies some channels for which a decision feedback equalizer is a practical option.
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IEEE Transactions on Communications
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