Distributed processing method/system for high-resolution satellite remote sensing data and medium

Abstract

The invention provides a distributed processing method / system for high-resolution satellite remote sensing data and a medium, and the method comprises the steps: retrieving the index of the high-resolution satellite remote sensing data, converting the index into a corresponding first distributed data set, and distributing the first distributed data set to each computing node; If the satellite product is a 0-level satellite product, generating an image corresponding to the 0-level product; If the high-resolution satellite remote sensing data is a first-level satellite product, analyzing the high-resolution satellite remote sensing data, converting the high-resolution satellite remote sensing data into a second distributed data set with a serial number, and adding 1 to the serial number of the second distributed data set to form a third distributed data set; Combining the second distributed data set and the third distributed data set, and re-fragmenting and re-distributing the combined distributed data set; And performing an operation of calculating an image mapping matrix on the distributed data set to generate an image corresponding to the first-level satellite product. According to the method, the data processing speed and the product production speed are greatly increased, the hard disk data reading and writing time is shortened, and calculation processing can be rapidly completed.

Description

technical field [0001] The invention belongs to the technical field of satellite communication, and relates to a processing method and system, in particular to a distributed processing method / system and medium for high-resolution satellite remote sensing data. Background technique [0002] With the improvement of satellite technology in recent years, the data volume of satellite data has been continuously increased, reaching TB level or even PB level, and customers have put forward higher requirements in terms of accuracy, ease of use, and rapid response to the query and use of satellite products. This means that the traditional, small-scale, low-level automation, and serial satellite data processing methods are difficult to meet the needs of customers with large data volume, complex processing, and timely satellite remote sensing images and products. In the existing production methods of high-resolution satellite remote sensing products, most of them are small-scale product...

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Problems solved by technology

[0004] In view of the shortcomings of the prior art described above, the purpose of the present invention is to provide a distributed processing method / system and medium for high-resolution satellite remote sensing data, which is used to solve the problem that most of the existing high-resolution satellite remote sensing product production methods are carried out Small-scale production or large-scale production for a long time only satisfies the download of historical data and products, resulting in the inability to process the downloaded data in a timely manner

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