RADIO COMMUNICATION LINE WITH SPATIAL DISCRIMINATION OF SIGNALS Russian patent published in 2000 - IPC

FIELD: digital data transmission. SUBSTANCE: radio communication line that may be found useful for data transmission to communicate with moving objects and also for use in reverse duplex radio control channels and burst command radio links for non-protected regions has carrier- and clock-frequency oscillator, pseudorandom sequence generator, orthogonal pseudorandom sequence shaper, two phasing devices, four multipliers, two 90 deg phase shifters, phase keyer, power splitter, antiphase amplifier, first and second feeds of transmitting antenna, phase detector, first and second exciters of receiving antenna, polarization reversing device, adder, subtracting device, narrow- band low-frequency filter, amplitude limiter, synchronous detector, first and second correlators, mixer, and heterodyne. EFFECT: improved noise immunity and secrecy of data transmitted. 3 dwg