METHOD FOR DETERMINING THE ALTITUDE PROFILE OF THE REFRACTIVE INDEX OF AIR OF A VOLUMETRIC SPATIAL AREA BASED ON THE ANALYSIS OF THE LIGHT FIELD Russian patent published in 2022 - IPC G01W1/00 

FIELD: measuring.

SUBSTANCE: invention relates to methods for determining the altitude profile of the refractive index of the atmosphere based on the analysis of images of the light field. Substance: the combined course of rays from the observed object located in the observed spatial area is recorded by means of a matrix photodetector with a microlens array located in front of the detector. An array of sub-aperture small-sized images of the observed volumetric spatial area is formed. Altitude intervals are selected along the line of sight to the observed object, wherein each interval corresponds to a specific value of the structured constant of the refractive index of air. The displacements and the degree of blurring of the observed object are measured referencing to the selected altitude intervals of the profile of the refractive index of air. Local slopes of the wave front are determined based on the selected altitude intervals of the profile of the refractive index of air.

EFFECT: increase in the accuracy of determining the altitude profile of the refractive index of air.

1 cl, 4 dwg