METHOD FOR TRANSMITTING DIGITAL INFORMATION IN STEP-CARRIER-VARIATION RADIO LINK Russian patent published in 2006 - IPC H04B1/713 

FIELD: radio engineering; radio communication systems.

SUBSTANCE: signals of binary code combinations are converted by means of encoder into code-combination signals by replacing each binary code combination with other binary code combination in compliance with preset encoding mechanism; then each enciphered code combination is assigned respective carrier number which is radiated into environment within time equal to length T_c; carrier signals are received, amplified, and converted into intermediate-frequency signals which are separated by means of narrow-band filters whose passband width Δf = 2/T_c, where T_c is length of enciphered code combination resulting in video pulses enabling readout of respective enciphered code combinations from memory devices which are then converted by encoder into code combinations of digital signal being transferred and added to receive digital signal being transferred.

EFFECT: enhanced noise immunity and information security, simplified design of receiver.

1 cl, 1 dwg