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ISSN 2070-7401 (Print), ISSN 2411-0280 (Online)
Sovremennye problemy distantsionnogo zondirovaniya Zemli iz kosmosa
CURRENT PROBLEMS IN REMOTE SENSING OF THE EARTH FROM SPACE

  

Sovremennye problemy distantsionnogo zondirovaniya Zemli iz kosmosa, 2024, Vol. 21, No. 3, pp. 9-30

Automatic processing of space imagery in the ground segment of the domestic multi-satellite constellation of remote sensing spacecrafts

D.I. Fedotkin 1 , E.N. Borovenskiy 1 , D.V. Sysenko 1 , A.V. Yadykin 1 , P.A. Loshkarev 2 
1 Research Institute of Precision Instruments, Moscow, Russia
2 AO Central Research Institute for Machine Building, Korolev, Moscow Region, Russia
Accepted: 12.04.2024
DOI: 10.21046/2070-7401-2024-21-3-9-30
The article is devoted to new software complexes and technologies for automatic processing of remote sensing(RS) data. The software complexes were developed within the framework of state contracts commissioned by the Roscosmos State Corporation in order to modernize the ground segment of the domestic orbital group of remote sensing spacecrafts. The prerequisites for the creation, the main advantages and technical solutions of a unified complex of automatic streaming data processing (ASDP) are considered. ASDP is a key element of the unified geographically distributed system RS. The main characteristics and statistics of the successful operation of the ASDP complex for processing data from domestic RS spacecraft at the request of consumers within the framework of ensuring the functioning of the Federal Data Fund of Earth Remote Sensing are presented. The key technical solutions and algorithms implemented in the subsystem of data processing (SDP) of the information system “Digital Earth” are considered. The SDP is being created as a logical continuation of modernization of the domestic ground segment of RS. The results of high-precision and high-performance automatic processing of satellite imagery data are presented, including the construction of continuous seamless tonally balanced orthocorrected coatings (orthomosaic) at the request of consumers. The results of the analysis of the accuracy characteristics of orthomosaic created in automatic mode are presented, showing the achievement of geo-referencing accuracy comparable to the spatial resolution of the data. The described software complexes made it possible to make a qualitative transition in ground-based data processing for the domestic remote sensing system. The following results have been achieved: the number of operators involved in processing has been reduced from more than fifty to a fully automatic processing machine; more than a hundred pieces of equipment (mainly PC) have been reduced to several servers; processing speed has accelerated from several hours and days to several minutes; the accuracy of geolocation has been increased from tens and hundreds of meters to units of meters. All this will ensure the readiness of the ground-based remote sensing segment for streaming high-precision processing of large amounts of information from projected domestic multi-satellite groupings with hundreds of spacecrafts in orbit and creation of operational thematic remote sensing services based on them.
Keywords: ground segment of remote sensing, automatic stream data processing of remote sensing data, seamless orthophotomosaic, ASDP, Digital Earth
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