METHOD FOR TRANSMITTING MESSAGES OVER FREE-SPACE OPTICAL COMMUNICATION Russian patent published in 2021 - IPC H04B10/00 

FIELD: optical communication.

SUBSTANCE: invention relates to the field of optical communication and can be used to transmit messages through an atmosphere containing optical radiation scattering formations. To do this, in the method for transmitting messages over an atmospheric optical communication line, the message transmission process begins with the emission of test optical pulses of minimum amplitude, followed by increasing their amplitude from pulse to pulse and receiving on the transmitting side the radiated test optical pulses and signals scattered by the propagation medium, and when the amplitude of these received pulses and signals exceeds the set value, the emission of test pulses and message transmission is stopped, and then resumed, repeating the specified sequence of operations, starting with the emission of test optical pulses with an amplitude increasing from the minimum value.

EFFECT: increasing the secrecy of the transmission of messages, namely, making it difficult to intercept them, detect the location of the optical transmitter and the event of message transmission.

1 cl, 2 dwg