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文章首先分析了机载计算机高速数字电路系统干扰噪声产生的原因,然后分析了干扰噪声耦合途径,最后重点阐述了硬件抗干扰设计,其中硬件抗干扰设计内容包括:元器件选择、电源地设计、几种典型电路设计、总线设计等。
Firstly, the paper analyzes the reason of interference noise generated by high-speed digital circuit system of airborne computer, and then analyzes the coupling way of interference noise. Finally, the hardware anti-jamming design is elaborated. The hardware anti-interference design includes: component selection, Several typical circuit design, bus design.