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- W835009322 abstract "초음속 전투기급 비행제어 컴퓨터(FLCC)의 성능향상을 위해 프로세서(CPU) 및 CPU 보드의 형상이 변경되었으며, 하드웨어형상 확정 단계에서 정확한 실시간 처리량 예측이 필요하였다. 본 연구에서는 실시간 처리량 예측을 위한 실험적 방법이 시도되었다. 기존 FLCC를 정상 동작시키며 한 Sampling Time 동안 CPU(SMJ320C40) Address Bus 데이터를 획득 및 디코드하여 메모리별 접근 및 분기 횟수를 측정하였다. 측정된 데이터를 통해, 신규 FLCC CPU(SMJ320C601) Demo Board를 제작하여 정확한 실시간 처리량 예측시험을 수행하였으며, 시험결과를 통해 CPU-Memory Architecture를 조기에 변경할 수 있었다. 특히 설계 변경에 따른 문제점들 중의 하나인 Power- Interruption에 대한 비행 안정성 저하여부를 판단하기 위하여 HILS (Hardware-In-the Loop Simulator)를 통한 비행검증시험이 수행되었다. For the performance upgrade of a supersonic jet fighter, the processor and FLCC(Flight Control Computer) Architecture were upgraded from a baseline FLCC. Prior to the hardware implementation phase, the exact CPU throughput estimation is necessary. For this purpose, an experimental method for new FLCC throughput estimation was introduced in this study. While baseline FLCC operating, the CPU address bus was collected with logic analyzer, and then decoded to get the exact access times to each memory-memory and the number of program Instruction branches. Based on these data, a throughput test in CPU demo-board of the new FLCC configuration was performed. From test results, the CPU-Memory architecture was design-changed before FLCC hardware implementation phase. To check the flight stability degradation due to power-interrupt problem due to CPU-Memory architecture change, the piloted HILS (Hardware-In-the Loop Simulator) test was conducted." @default.
- W835009322 created "2016-06-24" @default.
- W835009322 date "2007-10-31" @default.
- W835009322 modified "2023-09-25" @default.
- W835009322 title "Throughput Improvement and Power-Interruption Consideration of Fly-By-Wire Flight Control Computer" @default.
- W835009322 doi "https://doi.org/10.5139/jksas.2007.35.10.940" @default.
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