一种面向卫星应用的新型存储器和FPGA设计与实现  

The Design and Implementation of a Novel Memory and FPGA for Satellite Application

作　　者：张弓[1] 刘崇华[1] 潘宇倩[1] 杨聪伟[1] 冯文婧[1] 司端国[1] 

机构地区：[1]北京空间飞行器总体设计部,北京100094

出　　处：《空间电子技术》2014年第4期77-82,共6页Space Electronic Technology

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。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.

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 

分 类 号：V474.2[航空宇航科学与技术—飞行器设计]