Receiver capable of improving signal-to-noise ratio in reproduci

Details Receiver capable of improving signal-to-noise ratio in reproduci Receiver capable of improving signal-to-noise ratio in reproduci

1988-09-26

1990-11-20

Olms, Douglas W.

Pulse or digital communications

Repeaters

Testing

375 14, 333 18, H03H 730

Patent

active

049724339

ABSTRACT:
In a receiver comprising a filter section for filtering a transmitted digital signal into a filtered digital signal and an equalizer section for equalizing the filtered digital signal into an equalized digital signal as a reproduced digital signal in response to controllable tap gains supplied from a control arrangement, the equalizer section comprises a first arrangement for filtering the filtered digital signal in response to predetermined ones of the controllable tap gains to produce an intermediate digital signal and a second arrangement for equalizing the intermediate digital signal into the equalized digital signal in response to remaining ones of the controllable tap gains except for the predetermined controllable tap gains to produce the reproduced digital signal. The control arrangement controls the predetermined tap gains so as to minimize noise power of a noise signal accompanying the filtered digital signal and the remaining controllable tap gains and to equalize the intermediate digital signal into the equalized digital signal.

REFERENCES:
patent: 3708766 (1973-01-01), Sha et al.
patent: 3795865 (1974-03-01), Armstrong
patent: 4359778 (1982-11-01), Lee

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