METHOD FOR OVER-HORIZONTAL DETECTION OF MAN-GENERAL MARINE OBJECTS Russian patent published in 2021 - IPC G01S3/78 

FIELD: measuring techniques.

SUBSTANCE: invention relates to a measuring technique for detecting objects using infrared vision systems and can be used in search and rescue operations carried out in sea conditions. To achieve the effect, in the method in a given azimuthal direction at a given low height from the earth's surface or from the water surface, thermography of the celestial hemisphere and the underlying layer of the water surface is performed, the infrared image obtained during thermography is subjected to digital filtration for a predetermined number of times until the maximum possible image smoothing is achieved, after which the ratio of contrast and brightness of the infrared image is varied in order to identify on it one or more heat-abnormal atmospheric zones with low brightness, according to the presence of which it is concluded that there are over-the-horizon man-made marine objects in a given azimuthal direction, while thermography is performed in a given spectral range wavelengths of infrared radiation, and for digital filtering, matrix filters with a given binary convolution matrix are used.

EFFECT: invention increases the detection range of a marine technogenic object.

1 cl, 2 dwg