FIELD: astronautics.
SUBSTANCE: invention relates to space engineering for photographing terrain from orbit of spacecraft and processing images obtained using optical-electronic equipment for remote probing. Method of determining the resolution of optical-electronic equipment for remote probing is based on scanning the underlying surface to form a digital image of objects on photosensitive matrices and subsequent processing. First, by turning the spacecraft, aiming the optical axis at the point of the celestial sphere in the vicinity of the Moon, then performing program rotations of the spacecraft and scanning the surface of the moon with the field of view of optoelectronic remote sensing equipment, in which the direction of displacement of the image of the surface of the moon on photosensitive matrices coincides with the direction of transfer charge packets in photosensitive matrices. Clock frequency of transfer of charge packets should be synchronized with angular speed of programmed turns of space vehicle, and when processing the obtained image, by blurring boundaries on the image of the surface of the moon, determining a frequency contrast characteristic, and based on it for a given contrast and known design parameters of the equipment, resolution is determined.
EFFECT: technical result consists in providing the possibility of determining the resolution of optical-electronic equipment for remote sensing in conditions of the entire space flight regardless of weather conditions and the state of ground polygons, as well as controlling change in resolution of optical-electronic equipment for remote probing during space flight under the effect of various factors.
1 cl, 12 dwg
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Authors
Dates
2020-08-17—Published
2019-10-09—Filed