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基于三模冗余架構的航天器FPGA可靠性設計
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Spacecraft FPGA Reliability Design Based on Three-Mode Redundant Architecture
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    摘要:

    為提高航天器FPGA設備的可靠性,提出基于三模冗余架構的航天器FPGA可靠性設計。根據FPGA架構的基礎連接原理,設計處理單元、配置單元、射頻單元與雙閉環(huán)電路組織,完成航天器FPGA的拓撲結構研究。在此基礎上,連接總線(xiàn)通信串口,按照數據緩存的隊列請求,控制總線(xiàn)狀態(tài)機的既定化狀態(tài),完成航天器FPGA結構的傳輸轉換。分別調試關(guān)鍵器件FPGA、復位航天芯片、整星聯(lián)合三項,實(shí)現三模冗余架構的特性分析,完成基于三模冗余架構的航天器FPGA設計。實(shí)驗檢測結果表明,隨著(zhù)設備航行時(shí)間的增加,MPPT、SPPT指標的最大數值均占比70%以上,航天器FPGA的高可靠屬性得以有效保持。

    Abstract:

    In order to improve the reliability of spacecraft FPGA equipment, the reliability design of spacecraft FPGA based on three-mode redundant architecture is proposed. According to the basic connection principle of FPGA architecture, the processing unit, configuration unit, RF unit and double closed-loop circuit organization are designed to complete the research on the topology of spacecraft FPGA. On this basis, the bus communication serial port is connected, and according to the queue request of the data buffer, the established state of the bus state machine is controlled, and the transmission conversion of the spacecraft FPGA structure is completed. The key device FPGA, the reset space chip, and the whole star combination are debugged separately to realize the characteristic analysis of the three-mode redundant architecture, and the spacecraft FPGA design based on the three-mode redundant architecture is completed. The experimental results show that with the increase of equipment navigation time, the maximum values of MPPT and SPPT indicators account for more than 70%, and the high reliability of spacecraft FPGAs can be effectively maintained.

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楊亮,李祁.基于三模冗余架構的航天器FPGA可靠性設計計算機測量與控制[J].,2019,27(12):244-248.

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  • 收稿日期:2019-10-14
  • 最后修改日期:2019-10-28
  • 錄用日期:2019-10-28
  • 在線(xiàn)發(fā)布日期: 2019-12-26
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