GEAR FOR DEMODULATION OF DISCRETE SIGNALS IN CHANNELS WITH GROUPING OF ERRORS Russian patent published in 1999 - IPC

FIELD: radio communication. SUBSTANCE: invention can be used in systems transmitting discrete information with convoluting coding over communication channels with scattering of energy of received signals ( channels with memory ) subject to fading and action of additive interference. Increased noise immunity of reception of discrete signals with convoluting coding over channels with grouping of errors is achieved in gear by insertion of unit of superimposition of delayed information symbols, register of decisions, second comparator, former of reference signals, analyzer of condition of channel, register of indications of condition of channel, second register of decisions, second coder, unit reconstructing information symbols delayed in transmission, commutator of decisions. EFFECT: increased noise immunity of reception. 5 dwg