抗单粒子翻转的可重构卫星通信系统

A New SEU Tolerant Satellite Dynamically-Reconfigurable System Based on SDR

卫星在宇宙空间运行易受到各种高能粒子辐射,由此所产生的单粒子现象可能会影响卫星正常工作。新一代卫星通信平台不仅需要稳定可靠地工作,而且需要支持多数据速率、多调制模式、多传输频段以及具有星上交换和处理等功能。通过分析和总结单粒子效应种类及目前主要对抗方法,提出了一种基于软件无线电的全对称全连通可重构通信系统。该系统通过软件重构可以满足多用途以及星上处理和交换的需求,通过硬件平台的动态重构可以有效地克服单粒子效应的影响,其全对称全连通的结构可以显著提高系统的可靠性和使用寿命。

The single event effects （SEE） caused by heavy ion and radiation, which lead to the destruction of internal user logic of FPGAs on satellite in aerospace, are big threat to the next-generation multifunctional and all-purpose satellite platform. According to the analysis and summarization of SEE mitigation techniques at present, this paper presents a holo- symmetrical and fully connected satellite platform with the ability of dynamical reconfiguration, based on the software de- fined radio（SDR）. The flexibility and reliability of the proposed satellite platform can be significantly improved by the software reconfiguration and hardware reconfiguration respectively.