On-satellite small cluster information processing system

Abstract

The invention provides an on-satellite small cluster information processing system, and belongs to the technical field of on-satellite real-time and near-real-time information processing. The system aims to solve the technical problem that an existing remote sensing satellite is weak in on-satellite information processing, long in image data acquisition period and poor in real-time performance. The system comprises a high-performance X86 application layer computer, an embedded multi-core DSP computer, an external interface unit, a power supply unit and a VPX high-speed data exchanger, whereinthe VPX high-speed data exchanger adopts an OpenVPX system-level bus standard, and achieves mutual connection of high-speed data buses, satellite keeping control buses and power supplies of all functional modules in the system. The on-satellite small cluster information processing system can achieve intelligent processing of on-satellite remote sensing images, an open hardware platform architecture based on the OpenVPX bus standard is utilized, the functions and the calculation of the hardware platform are achieved by increasing and decreasing the number of the embedded multi-core DSP computers so as to meet different requirements of an optical remote sensing satellite for data processing tasks, and the system is good in universality and high in expanding capability.

Description

technical field [0001] The invention belongs to the technical field of on-board real-time and near-real-time information processing, and in particular relates to an on-board small cluster information processing system. Background technique [0002] Aerospace optical remote sensing technology can dynamically, quickly and accurately obtain a large amount of earth observation data, which plays a very important role in both civilian and military applications. In the field of military applications, through remote sensing satellite strategic reconnaissance, military surveying and mapping, ocean monitoring, etc., it provides reliance and support for national defense construction. With the development of aerospace optical remote sensing imaging technology, the requirements for spatial resolution and width continue to increase. The obtained space Earth observation image data reaches the level of tens of Gbits per second. At the same time, the demand for satellite intelligence is gett...

AI Technical Summary

Problems solved by technology

[0004] In order to solve the technical problems of weak on-board information processing, long image data acquisition cycle and poor real-time performance of current remote sensing satellites, the present invention provides a small-scale on-board cluster information processing system

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