上海航天（中英文）2026，Vol.43Issue(3)：139-149,11.DOI:10.19328/j.cnki.2096-8655.2026.03.013
基于FPGA的多层级抗辐射架构研究
Research on Multi-level Radiation-hardened Architecture Based on FPGA
摘要
Abstract
Satellites operate under extreme environmental conditions and high economic constraints.While static random-access memory(SRAM)-based field programmable gate arrays(FPGAs)have become core components in satellite electronic systems due to their high logic density and dynamic reconfigurability,their configuration memory remains vulnerable to space radiation.To balance the hardware cost reduction with stringent on-orbit reliability requirements,this paper proposes a hybrid triple modular redundancy(TMR)storage architecture integrated with a cold-standby mechanism.An external FPGA is introduced to manage the firmware maintenance for peripheral devices.The proposed architecture and circuit design ensure the high-reliability data output by performing autonomous error detection and correction for single-event upsets.Upon detecting permanent faults,the system executes adaptive strategies such as cold-spare replacement to achieve graceful stability degradation over time.The reliability analysis based on continuous-time Markov chains demonstrates that the proposed architecture exhibits robust resistance to both transient upsets and permanent damage.The experimental results indicate that,compared with traditional designs,the mission time improvement factor increases by over 10 times,while the hardware costs are reduced by 58%.These findings validate the feasibility of substituting radiation-hardened components with domestic commercial chips for specific aerospace applications.关键词
三模冗余(TMR)/故障修复/可靠性/冷备份/国产化替代Key words
triple modular redundancy(TMR)/fault repair/reliability/cold standby/domestic substitution分类
信息技术与安全科学引用本文复制引用
黄彦琪,丁宝钢..基于FPGA的多层级抗辐射架构研究[J].上海航天（中英文）,2026,43(3):139-149,11.基金项目
国家自然科学基金资助项目(62371192) （62371192）
