HIGH-SPEED DECAMETRIC RADIO COMMUNICATION SYSTEM Russian patent published in 2017 - IPC H04B7/08 

FIELD: wireless communications.

SUBSTANCE: invention relates to radio communication and can be used in wide application decameter range radio networks, intended for discrete messages high-speed transmission using angular keying signals. System of high-speed decametric radio communication contains transmitting system, including series-connected messages source, encoder and series-parallel converter, which outputs are connected to corresponding inputs of N channel keying unit, which output of is connected to series-connected radio transmitting device and transmitting antenna, as well as receiving system containing two receiving antennae, each of which output is connected to input of corresponding radio receiving device, as well as N channel demodulators unit, which outputs are connected to corresponding inputs of parallel-serial converter, which output of is connected with in-series connected decoder and messages recipient. Receiving system includes N coherent signals addition (CSA) units, one input of each of which is integrated with one radio receiving device output, and of each CSA other input is combined with other radio receiving device output, wherein of each CSA output is connected corresponding input of N channel demodulators unit, each CSA comprises two phasing units, each of which contains serially connected channel filter, which input is corresponding input of CSA, normalizing amplifier, first multiplier, measuring filter and second multiplier, which other input is connected to first multiplier input, each phasing unit second multiplier output is connected with corresponding input of adder, which output is connected to input of resulting signal filter, which output, which is CSA output, is connected through resultant signal normalizing amplifier to other input of each phasing unit first multiplier.

EFFECT: technical result is each i-th channel signal (i=1, 2,…, N) higher noise immunity of receiving consisting of N-channel group signal and group signal in general under influence of additive radio interferences, as well as communication system broader functional capabilities due to enabling of signals transmission and reception with any angular keying of bearing channel signals both in phase (PDSK, DPDSK, etc), and in frequency (FT, DFT).

1 cl, 1 dwg, 1 tbl