Method and device for training an adaptive equalizer by means of

Details Method and device for training an adaptive equalizer by means of Method and device for training an adaptive equalizer by means of

1980-04-01

1982-01-05

Safourek, Benedict V.

Pulse or digital communications

Repeaters

Testing

333 18, H03H 740

Patent

active

043097707

ABSTRACT:
This invention relates to automatic adaptive equalizers used in those data transmission systems which rely upon a double sideband-quadrature carrier (DSB-QC) modulation technique. The term DSB-QC modulation is used here in a broad sense and includes all systems wherein the transmitted signal can be represented by superimposing two amplitude modulated quadrature carriers. Thus, the term DSB-QC includes, in particular, phase-shift keying, amplitude phase-shift keying and quadrature amplitude modulation. More particularly, this invention relates to a method and a device for training an adaptive equalizer by means of an unknown data signal sent to the receiver, and is especially useful in a data transmission system configured as a multipoint network.

REFERENCES:
patent: 3978407 (1976-08-01), Forney, Jr.
patent: 4047013 (1977-09-01), Milewski
patent: 4089061 (1978-05-01), Milewski
patent: 4227160 (1980-10-01), Tamori et al.

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