CAJ | 학술논문

空间任务要求电子系统在很少甚至没有维护的情况下稳定工作，但空间电子系统易受到粒子辐射的影响而导致功能紊乱。为了解决空间中子探测仪中的通用多核DSP受粒子辐射影响所导致的程序安全性下降的问题，需要对DSP进行抗辐射加固。本文将介绍中子探测仪中的多核DSP所采用的多种抗SEU软件防护措施。故障注入实验表明，这些防护方法能够有效地减少SEU导致的软件错误。
공간임무요구전자계통재흔소심지몰유유호적정황하은정공작，단공간전자계통역수도입자복사적영향이도치공능문란。위료해결공간중자탐측의중적통용다핵DSP수입자복사영향소도치적정서안전성하강적문제，수요대DSP진행항복사가고。본문장개소중자탐측의중적다핵DSP소채용적다충항SEU연건방호조시。고장주입실험표명，저사방호방법능구유효지감소SEU도치적연건착오。
The space mission requires electronic system to operate for a long period with little or no mainte-nance.However, space electronic systems are susceptible to dysfunction when exposed to particle radiation.In order to solve the problem of declining reliability of DSP program caused by the effects of particle radiation, it is necessary to perform radiation hardening the DSP in space neutron detector.This article will introduce a variety of protective measures against SEUs used in the multi-core DSP software in the neutron detector.Fault injec-tion experiments show that these protection methods can effectively reduce software errors caused by SEUs.