Method for controlling real-time decompressor of multi-spectrum band remote sensing images

Abstract

The invention discloses a method for controlling a real-time decompressor of multi-spectrum band remote sensing images. The real-time decompressor comprises a decompression processing unit and a control module, the decompression processing unit comprises a plurality of decompression processing boards; the control module is connected with the decompression processing boards through PCIE interfaces, and the control module is connected with a formatter through a network interface; and the method comprises the following steps: S1, receiving multi-spectrum band remote sensing compressed code streams released by a satellite in a parallel mode; S2, performing decompression processing on the multi-spectrum band remote sensing compressed code streams in the parallel mode; and S3, outputting and sending the decompressed multi-spectrum band remote sensing images in the parallel mode. according to the method provided by the invention, multipath parallel multi-thread processing is adopted to improve the data input and output number and shorten the system delay time; and a self fault diagnosis, locating and tracking function is designed in the control module, and enough output information is provided by a display device on a chassis for the judgment of maintenance personnel. In addition, and a test interface is arranged on the front face of the chassis so as to facilitate the maintenance of the operation condition of the system by the maintenance personnel.

Description

technical field [0001] The invention belongs to the field of satellite remote sensing image data processing, and in particular relates to an intelligent control method and system for real-time decoding of satellite remote sensing multi-spectral compressed and coded data. Background technique [0002] As the resolution of satellite remote sensing images is greatly improved, the amount of remote sensing image data and computer calculations will increase significantly. The way satellites transmit compressed code stream data back to the ground is mostly through radio channels. Therefore, for ground receiving systems The technical difficulty is how to receive and process such high-speed, large-volume, and dynamically-changing data. [0003] The wide application of space remote sensing technology in military reconnaissance, weather forecast, geological survey, etc. has made people put forward higher requirements for the on-board data compression system. While improving the compre...

AI Technical Summary

Problems solved by technology

[0006] Aiming at the defects of the prior art, the object of the present invention is to provide a control method for a real-time decompressor of multi-spectral remote sensing images, aiming at solving the problem of high speed, large data volume, large dynamic change flow, and multiple Multi-spectral remote sensing images with a compression mode, and realize real-time data reception, decompression and transmission

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