| 摘要 |
digital information transmission, radio channels of satellite and earth communication systems. SUBSTANCE: device has two information sources, pulse-width modulator, phase modulator, balance modulator, power amplifier, two FM generators, carrier frequency generator, two synchronization units, transmitting and receiving antennas, six mixers, intermediate frequency amplifier, correlator, demodulator, two information receivers, local oscillator, six band-pass filters, five electronic gates, adder, encoder, commutator, loop circuit, time- frequency matrix, reference oscillator and decoder. EFFECT: doubling transmitted information output. 4 dwg
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