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首页> 外文期刊>Nuclear Instruments & Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment >Single Event Upset Analysis: On-orbit performance of the Alpha Magnetic Spectrometer Digital Signal Processor Memory aboard the International Space Station
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Single Event Upset Analysis: On-orbit performance of the Alpha Magnetic Spectrometer Digital Signal Processor Memory aboard the International Space Station

机译:单事件翻转分析:国际空间站上的阿尔法电磁谱仪数字信号处理器存储器的在轨性能

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AbstractBased on the collection of error data from the Alpha Magnetic Spectrometer (AMS) Digital Signal Processors (DSP), on-orbit Single Event Upsets (SEUs) of the DSP program memory are analyzed. The daily error distribution and time intervals between errors are calculated to evaluate the reliability of the system. The particle density distribution of International Space Station (ISS) orbit is presented and the effects from the South Atlantic Anomaly (SAA) and the geomagnetic poles are analyzed. The impact of solar events on the DSP program memory is carried out combining data analysis and Monte Carlo simulation (MC). From the analysis and simulation results, it is concluded that the area corresponding to the SAA is the main source of errors on the ISS orbit. Solar events can also cause errors on DSP program memory, but the effect depends on the on-orbit particle density.
机译: 摘要 基于从Alpha电磁谱仪(AMS)数字信号处理器(DSP)收集的错误数据,DSP程序在轨单事件翻转(SEU)内存进行了分析。计算每日错误分布和错误之间的时间间隔,以评估系统的可靠性。给出了国际空间站(ISS)轨道的粒子密度分布,并分析了南大西洋异常(SAA)和地磁极的影响。太阳事件对DSP程序存储器的影响是结合数据分析和蒙特卡罗模拟(MC)进行的。从分析和模拟结果可以得出结论,与SAA相对应的区域是ISS轨道上误差的主要来源。太阳事件也可能导致DSP程序存储器出错,但是影响取决于在轨粒子密度。

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