MULTIPOSITION SIGNAL DEMODULATOR Russian patent published in 2005 - IPC

FIELD: radio engineering; digital radio broadcasting and digital television.

SUBSTANCE: proposed multiposition signal demodulator that can be used in radio receivers for multichannel digital communication lines and multiple access networks and incorporates provision for adapting parameters of signal suffering destabilizing factors, such as signal fading-out, has carrier wave separation unit, first, second, and third multipliers, first, second, and third low-pass filters, phase shifter, first and second diode bridges, first and second adders, and decision unit.

EFFECT: reduced noise immunity loss caused by probable changes in amplitudes of cophasal and quadrature signal components.

2 cl, 3 dwg