摘要
随着卫星整机性能的提高,以往的小容量、单缓存的固态记录器已严重制约了卫星系统的整机性能,研制高实时性、大存储容量、高可靠性的记录器已成为目前急需攻克的课题。根据航天电子系统不可修复,系统运行稳定性、可靠性要求非常高,可供选择的器件不多的特点,选用FPGA和SDRAM器件,用乒乓缓存的硬件结构替代以往的单缓存结构,设计一套大容量、高实时性、高可靠性的固态记录器,对研制过程中遇到的若干技术难点进行深入的研究,提出了相关解决方案。解决问题的方法完全可以应用到相关的民用系统中,提高了类似系统的稳定性和可靠性。
With improvement of the performance in satellite,the performance in satellite is restricted with the solid - state recorder which has small capacity and single memory cache. It is the exact problem to develop the solid - state recorder which has high real- time,big capacity and high stabilization. Because aerospace electronic system cant t be repaired,the stabilization and dependability requirements are very high in system. However, the devices can be selected are not so many. FPGA and SDRAM devices are used to make a ping - pong memory cache hardware configuration to take the place of single memory cache structure in the past project in the paper. The real - time of solid - state recorder is very high and the memory capacity is very big. There are plenty of problems in the research process and correlative resolvents are put forward about the problems. And the resolvents are the innovation too. The solution can be applied to all relevant civilian system, the stability and reliability of a similar system are enhanced.
出处
《现代电子技术》
2008年第18期17-19,22,共4页
Modern Electronics Technique
