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The effect of faults on plasma particle detector data reduction

机译:故障对等离子体粒子检测器数据减少的影响

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Missions in NASA's Solar-Terrestrial Probe line feature challenges such as multiple spacecraft and high data production rates. An important class of scientific instruments that have for years strained against limits on communications are the particle detectors used to measure space plasma density, temperature, and flow. The Plasma Moment Application (PMA) software is being developed for the NASA Remote Exploration & Experimentation (REE) Program's series of Flight Processor Testbeds. REE seeks to enable instrument science teams to move data analyses such as PMA on board the spacecraft thereby reducing communication downlink requirements. Here we describe the PMA for the first time and examine its behavior under single bit faults in its static state. We find that ~90% of the faults lead to tolerable behavior, while the remainder cause either program failure or nonsensical results. These results help guide the development of fault tolerant, non-hardened flight/science processors.
机译:美国宇航局的太阳能探测线的任务具有多种航天器和高数据生产率等挑战。具有多年来对通信限制的多年来的重要类别的科学仪器是用于测量空间等离子体密度,温度和流量的粒子检测器。等离子体时刻应用程序(PMA)软件正在为美国宇航局的远程探索和实验(REE)程序的飞行处理器系列试验台开发。 REE寻求启用仪器科学团队,以便在航天器上移动PMA等数据分析,从而降低了通信下行链路要求。在这里,我们首次描述了PMA,并在其静态状态下在单个位故障下检查其行为。我们发现〜90%的故障导致可容忍的行为,而其余的导致程序失败或荒谬的结果。这些结果有助于指导容错,非硬化飞行/科学处理器的发展。

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