一种面向卫星应用的新型存储器和FPGA设计与实现 |
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作者姓名: | 张弓 刘崇华 潘宇倩 杨聪伟 冯文婧 司端国 |
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作者单位: | 北京空间飞行器总体设计部,北京100094 |
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摘 要: | 可靠性对在轨卫星的安全意义重大。由于空间环境辐射和单粒子效应,卫星系统多次发生在轨异常,对在轨卫星系统工作的连续性、稳定性和安全性造成了严重影响。文章针对卫星在轨空间环境和单粒子问题,提出一种基于铁电材料的高可靠、抗辐射的CPU和FPGA解决方案。一方面,设计了和通用接口兼容的新型铁电存储器,其抗辐射总剂量大于10000Krads(Si),对单粒子效应几乎具有完全的免疫能力;另一方面,设计了基于铁电编程单元的新型FPGA,该FPGA不需要外部PROM,具有很好的经济性和应用前景。
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关 键 词: | 可靠性 空间环境辐射 单粒子效应 铁电存储器 抗辐射 新型FPGA |
The Design and Implementation of a Novel Memory and FPGA for Satellite Application |
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Authors: | ZHANG Gong LIU Chong-hua PAN Yu-qian YANG Cong-wei FENG Wen-jing SI Duan-guo |
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Institution: | (Beijing Institute of Spacecraft System Engineering,Beijing 100094,China) |
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Abstract: | Reliability is vital to the safety of satellite in orbit. Abnormal phenomena frequently occurs in satellites due to the radiation in space environment and SEU ( Single Event Upset) effects, which severely influence the operation continu-ity, stability and security of satellites in orbit. Focused on the above problem of SEU in space environment, this paper pres-ents CPU ( Central processing unit) and FPGA solutions with high reliability and anti-radicalization based on ferroelectric material. On the one hand, a novel ferroelectric random access memory with universal interface is designed and implemen-ted. The total anti-radiation dose of this memory is greater than 10000 Krads ( Si) . Moreover, it is immune to single event upset effects. On the other hand, a new type of FPGA without PROM ( Programmable Read-Only Memory) is designed based on the ferroelectric programming cell, which gives it a bright future for application and extension. |
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Keywords: | Reliability Space radiation Single event upset effects Ferroelectric random access memory Anti-radical-ization A new type of FPGA |
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