VERTECS:一种基于 COTS 的有效载荷接口板,用于支持下一代天文成像有效载荷
VERTECS: A COTS-based payload interface board to enable next generation astronomical imaging payloads
AI总结:
本文介绍了基于 COTS 组件和 Raspberry Pi 的开源有效载荷接口板 VERTECS CCB,它作为 VERTECS 纳卫星总线与天文成像载荷间的唯一接口,提供星载数据处理、高速数据传输及下行能力,并为未来高数据需求和在轨机器学习任务奠定基础。
摘要:
由于观测和成像技术的进步,现代天文卫星产生了大量数据。这使得高效的星载数据处理和高速数据下行成为必然要求。VERTECS 6U 天文纳卫星正反映了这一趋势。该任务旨在观测河外背景光(EBL),预计将生成大量图像数据,尤其是在 CubeSat 能力受限的情况下。本文介绍了 VERTECS Camera Control Board (CCB),这是一种利用商用现货(COTS)组件的开源有效载荷接口板,其核心为 Raspberry Pi Compute Module 4。VERTECS CCB 的硬件和软件从零开始设计,作为 VERTECS 总线系统与天文成像有效载荷之间的唯一接口,同时提供此类纳卫星中罕见的计算能力。它负责任务数据处理,将通过千兆以太网促进来自成像有效载荷的高速数据传输,同时为有效载荷 X 波段发射机提供高比特率串行连接以进行任务数据下行。辅助有效载荷的附加接口通过 USB-C 和标准 15 针相机连接器提供。嵌入在 VERTECS CCB 中的 Raspberry Pi 运行标准 Linux 发行版,从而简化了软件开发过程。除了满足当前任务的有效载荷控制和数据处理需求外,CCB 还为未来具有更高数据需求的任务奠定了基础。此外,它支持在轨采用机器学习和其他计算密集型应用。本文深入探讨了 VERTECS CCB 的开发过程,深入介绍了这一下一代有效载荷接口的设计和验证,以确保其能够在严酷的太空飞行中存活。
英文摘要:
Due to advances in observation and imaging technologies, modern astronomical satellites generate large volumes of data. This necessitates efficient onboard data processing and high-speed data downlink. Reflecting this trend is the VERTECS 6U Astronomical Nanosatellite. Designed for the observation of Extragalactic Background Light (EBL), this mission is expected to generate a substantial amount of image data, particularly within the confines of CubeSat capabilities. This paper introduces the VERTECS Camera Control Board (CCB), an open-source payload interface board leveraging Commercial Off-The-Shelf (COTS) components, with a Raspberry Pi Compute Module 4 at its core. The VERTECS CCB hardware and software have been designed from the ground up to serve as the sole interface between the VERTECS bus system and astronomical imaging payload, while providing compute capability not usually seen in nanosatellites of this class. Responsible for mission data processing, it will facilitate high-speed data transfer from the imaging payload via gigabit Ethernet, while also providing a high-bitrate serial connection to the payload X-band transmitter for mission data downlink. Additional interfaces for secondary payloads are provided via USB-C and standard 15-pin camera connectors. The Raspberry Pi embedded within the VERTECS CCB operates on a standard Linux distribution, streamlining the software development process. Beyond addressing the current mission's payload control and data handling requirements, the CCB sets the stage for future missions with heightened data demands. Furthermore, it supports the adoption of machine learning and other compute-intensive applications in orbit. This paper delves into the development of the VERTECS CCB, offering insights into the design and validation of this next-generation payload interface, to ensure that it can survive the rigors of space flight.
机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。