METHOD FOR NOISE-RESISTANT DATA TRANSMISSION TO GLOBALLY REMOTE OBJECTS Russian patent published in 2022 - IPC H04L27/22 

FIELD: digital communication.

SUBSTANCE: invention relates to the field of digital communication. This result is achieved by pre-forming a message taking into account noise-resistant coding, selecting a frequency band for transmitting a message depending on the geographical features of a particular radio line, completing a group of operating frequencies from the available frequency band by excluding prohibited frequencies, setting a code in the form of a pseudorandom sequence, also setting the start time of communication sessions according to a pseudorandom law and their duration, forming the type of signal as a super-narrowband, setting the type of modulation as an amplitude telegraphy, converting a sequence of bits into a parallel form, rebuilding a multi-channel radio receiver to the operating frequencies of each bit of the message, calculating the value of the radio signal detection threshold according to the interference situation, creating a bank of narrow-band filters with a band of each l^th, l =1, 2, …, L, equal to the frequency band of each transmitted bit and totally overlapping the band up to the maximum offset of the operating frequency of the signal due to the Doppler effect, receiving each bit of the message in parallel mode at fixed operating frequencies by filtering them through a bank of narrow-band filters, accumulating signals of each bit of the message after each l^th filter at fixed operating frequencies, decoding the message and issuing it to the recipient or to the actuator.

EFFECT: increase in the noise immunity of messages transmitted over a decameter radio line.

1 cl, 6 dwg