System and method for adaptive maximum likelihood sequence estim

Details System and method for adaptive maximum likelihood sequence estim System and method for adaptive maximum likelihood sequence estim

1994-12-21

1997-09-30

Chin, Stephen

Pulse or digital communications

Equalizers

Automatic

375262, 375341, 375348, 375350, 371 43, H03M 1312

Patent

active

056732880

ABSTRACT:
A maximum likelihood sequence estimator implemented to cope with an intersymbol interference from a single symbol employs a necessary channel impulse response estimation vector of two components for a decision to estimate a maximum likelihood sequence. A channel impulse response estimator implemented to estimate a channel impulse response in consideration of intersymbol interferences from up to two symbols outputs a channel impulse response estimation vector of three components. The three-component vector is input to a converter, where it is converted into the two-component vector to be output to the maximum likelihood sequence estimator.

REFERENCES:
patent: 5228058 (1993-07-01), Ushirokawa et al.
patent: 5303263 (1994-04-01), Shoji et al.
patent: 5519727 (1996-05-01), Okanoue et al.
Proakis, Digital Communications, Digital Signaling Over a Channel With Intersymbol Interference, Chapter 6, pp. 394-401 and 410-413 (1983).
Duel-Hallen, et al., IEEE, Trans on Commun. 37(5):428-436 (1989).

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