NON-LINE-OF-SIGHT WIRELESS OPTICAL COMMUNICATION SYSTEM IN INFRARED WAVELENGTH RANGE Russian patent published in 2024 - IPC H04B10/00 

FIELD: transmission.

SUBSTANCE: invention relates to the field of transmitting information over a wireless channel in the atmosphere in the optical range with no direct line of sight of the source to the receiver. Technical result is achieved due to the use of a laser source in the infrared range in a wireless optical communication system, which enables to generate radiation with high energy in a pulse in a small angle of divergence of the laser beam at communication distances of more than 1 km, devices for encoding and decoding a signal according to a time-pulse modulation scheme, a photodetector of a photomultiplier which detects weak signals in the infrared range from a scattering volume due to a change in the amplification characteristic of the device, and a band-pass filter with a central radiation transmission wavelength of 1,064 nm.

EFFECT: longer range of data transmission compared to an optical communication system outside the line of sight in the ultraviolet (UV) range, as well as enabling communication with high atmospheric turbidity.

1 cl, 1 dwg