Spacecraft computing cluster based on cots components for solving earth remote sensing problems
Keywords:COMMERCIAL OFF-THE-SHELF, COMPUTING CLUSTER, EARTH OBSERVING SYSTEM, ON-BOARD COMPUTER, RASPBERRY PI 3 MODEL B
Every year requirements for satellites become more sophisticated and tight that force processing units to have necessary performance and on-board information volume, primarily related to the complexity of real-time control algorithms and the handling of large amounts of data generated by the payload (optical, radar and communication systems) and sensors. The article considers the task of creating a computing cluster structure with high performance and relatively low cost based on widely available single-board minicomputers. An on-board computer (OBC) cluster system based on single-board computers is proposed, which allows us to distribute the computing load between several nodes and triple redundancy. COTS-based cluster system (Commercial off-the-shelf) is proposed to be used as the OBC of the Earth Remote Sensing University Nano-satellite (ERSUN) to improve the performance of computation and to reduce the cost of components.
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