Methodology for design assessment of terrain linear resolution of optical-electronic Earth surface observation spacecraft taking into account uncertain operational factors
Studies have been conducted on the influence of the following uncertain operational factors on the linear resolution of spacecraft for optical-electronic observation of the Earth’s surface: deviations from the nadir of the optical axis of the spacecraft observation equipment, the wavelength in the p...
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Samara National Research University
2025-06-01
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| Series: | Вестник Самарского университета: Аэрокосмическая техника, технологии и машиностроение |
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| Online Access: | https://journals.ssau.ru/vestnik/article/viewFile/28692/11323 |
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| author | V. I. Kurenkov E. A. Pupkov |
| author_facet | V. I. Kurenkov E. A. Pupkov |
| author_sort | V. I. Kurenkov |
| collection | DOAJ |
| description | Studies have been conducted on the influence of the following uncertain operational factors on the linear resolution of spacecraft for optical-electronic observation of the Earth’s surface: deviations from the nadir of the optical axis of the spacecraft observation equipment, the wavelength in the panchromatic spectrum, and the normalized spatial frequency of optical systems. It is shown that all these factors significantly affect the terrain linear resolution index. A methodology is proposed for design assessment of terrain linear resolution, taking into account uncertain operational factors that can be used to determine the probabilistic indicators of terrain linear resolution, namely, the probability of obtaining terrain linear resolution of not less than a given value, and the value of terrain linear resolution with a given probabilistic guarantee. It is shown that the type of distribution laws of the input quantities significantly affects the resulting laws of spacecraft terrain linear resolution, obtained by calculated dependence. In the area of small probabilities, the worst values of terrain linear resolution are obtained under the normal laws of input values, and in the area of medium and high probabilities, the worst values are obtained with uniform distributions. It is shown that the values of terrain linear resolution for spacecraft with a lens optical system are better than those with a mirror optical system, all other things being equal. For real optical systems, there are limitations on the range of operating spatial frequencies transmitted by the optical system that lead to the fact that the terrain linear resolution cannot be better than pixel resolution. |
| format | Article |
| id | doaj-art-fbde2ad00f5b4430b964268197cef345 |
| institution | OA Journals |
| issn | 2542-0453 2541-7533 |
| language | English |
| publishDate | 2025-06-01 |
| publisher | Samara National Research University |
| record_format | Article |
| series | Вестник Самарского университета: Аэрокосмическая техника, технологии и машиностроение |
| spelling | doaj-art-fbde2ad00f5b4430b964268197cef3452025-08-20T02:35:31ZengSamara National Research UniversityВестник Самарского университета: Аэрокосмическая техника, технологии и машиностроение2542-04532541-75332025-06-01242334710.18287/2541-7533-2025-24-2-33-478962Methodology for design assessment of terrain linear resolution of optical-electronic Earth surface observation spacecraft taking into account uncertain operational factorsV. I. Kurenkov0E. A. Pupkov1Samara National Research UniversitySamara National Research UniversityStudies have been conducted on the influence of the following uncertain operational factors on the linear resolution of spacecraft for optical-electronic observation of the Earth’s surface: deviations from the nadir of the optical axis of the spacecraft observation equipment, the wavelength in the panchromatic spectrum, and the normalized spatial frequency of optical systems. It is shown that all these factors significantly affect the terrain linear resolution index. A methodology is proposed for design assessment of terrain linear resolution, taking into account uncertain operational factors that can be used to determine the probabilistic indicators of terrain linear resolution, namely, the probability of obtaining terrain linear resolution of not less than a given value, and the value of terrain linear resolution with a given probabilistic guarantee. It is shown that the type of distribution laws of the input quantities significantly affects the resulting laws of spacecraft terrain linear resolution, obtained by calculated dependence. In the area of small probabilities, the worst values of terrain linear resolution are obtained under the normal laws of input values, and in the area of medium and high probabilities, the worst values are obtained with uniform distributions. It is shown that the values of terrain linear resolution for spacecraft with a lens optical system are better than those with a mirror optical system, all other things being equal. For real optical systems, there are limitations on the range of operating spatial frequencies transmitted by the optical system that lead to the fact that the terrain linear resolution cannot be better than pixel resolution.https://journals.ssau.ru/vestnik/article/viewFile/28692/11323spacecraftoptoelectronic observationterrain linear resolutiondesign assessmentuncertain operational factorsangle of deviation of the optical axis from the nadirwavelength of the panchromatic spectrumnormalized spatial frequency |
| spellingShingle | V. I. Kurenkov E. A. Pupkov Methodology for design assessment of terrain linear resolution of optical-electronic Earth surface observation spacecraft taking into account uncertain operational factors Вестник Самарского университета: Аэрокосмическая техника, технологии и машиностроение spacecraft optoelectronic observation terrain linear resolution design assessment uncertain operational factors angle of deviation of the optical axis from the nadir wavelength of the panchromatic spectrum normalized spatial frequency |
| title | Methodology for design assessment of terrain linear resolution of optical-electronic Earth surface observation spacecraft taking into account uncertain operational factors |
| title_full | Methodology for design assessment of terrain linear resolution of optical-electronic Earth surface observation spacecraft taking into account uncertain operational factors |
| title_fullStr | Methodology for design assessment of terrain linear resolution of optical-electronic Earth surface observation spacecraft taking into account uncertain operational factors |
| title_full_unstemmed | Methodology for design assessment of terrain linear resolution of optical-electronic Earth surface observation spacecraft taking into account uncertain operational factors |
| title_short | Methodology for design assessment of terrain linear resolution of optical-electronic Earth surface observation spacecraft taking into account uncertain operational factors |
| title_sort | methodology for design assessment of terrain linear resolution of optical electronic earth surface observation spacecraft taking into account uncertain operational factors |
| topic | spacecraft optoelectronic observation terrain linear resolution design assessment uncertain operational factors angle of deviation of the optical axis from the nadir wavelength of the panchromatic spectrum normalized spatial frequency |
| url | https://journals.ssau.ru/vestnik/article/viewFile/28692/11323 |
| work_keys_str_mv | AT vikurenkov methodologyfordesignassessmentofterrainlinearresolutionofopticalelectronicearthsurfaceobservationspacecrafttakingintoaccountuncertainoperationalfactors AT eapupkov methodologyfordesignassessmentofterrainlinearresolutionofopticalelectronicearthsurfaceobservationspacecrafttakingintoaccountuncertainoperationalfactors |