Miniaturized universal platform for preprocessing remote-sensing satellite data

Abstract

The invention discloses a miniaturized universal platform for preprocessing remote-sensing satellite data. Hardware equipment of the platform comprises a common PC (Personal Computer) server, an NFS (Network File System) storage system and decompression equipment among which communication is carried out by an Ethernet; a basic structure of the platform comprises an inner core layer, a module layer and a service layer; the common PC server comprises a management node and a processing node; the inner core layer and the service layer are deployed on the management node; the module layer is deployed in the NFS storage system; the decompression equipment outputs a signal to a demodulator to carry out data format decompression processing; the module layer comprises various data processing algorithms of remote-sensing satellites and the data processing algorithms operate on the processing node when being called; the service layer analyzes an XML (Extensible Markup Language) file which is input from outside and describes the processing flow of the remote-sensing satellites to be processed, selects the algorithms suitable for data processing of the satellites from the module layer and carries out service logic combination on the algorithms; and the inner core layer calls the corresponding algorithms in the module layer according to the service logic relation, carries out data processing on data output by the decompression equipment and generates needed data products.

Description

technical field [0001] The invention relates to a miniaturized general system for remote sensing satellite data preprocessing, which belongs to computer technology and satellite remote sensing data processing. Background technique [0002] The satellite remote sensing data preprocessing system is located in the middle link of the entire space earth observation link, and its main task is to complete the preprocessing, archiving, production and distribution of the original data transmitted by the satellite. With the rapid development of computer technology and satellite sensor technology, the preprocessing system has developed from a single-satellite dedicated system based on special hardware architectures such as minicomputers or vector machines to commercialized PC clusters, SAN optical fiber shared storage systems and Infiniband high-speed Multi-satellite multi-task remote sensing data preprocessing system based on general hardware architecture such as network. [0003] Th...

AI Technical Summary

Problems solved by technology

[0003] The latter type of system overcomes the shortcomings of the former system such as long development cycle, high cost, and difficulty in maintenance and expansion. However, the scale of the system is still relatively large, and it needs to be built in a dedicated data center, and it is generally built separately from the ground station responsible for satellite data reception.

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