| 星上RS422接口电路的建模与仿真 |
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| 引用本文： | 李新贝,谭超,高山,邵根忠.星上RS422接口电路的建模与仿真[J].航天器工程,2011,20(1):109-113. |
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| 作者姓名： | 李新贝 谭超 高山 邵根忠 |
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| 作者单位： | 山东航天电子技术研究所,烟台,264003 |
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| 摘 要： | 基于最坏情况分析法结合叠加定理对星上RS422串行总线通信技术接口电路建立了等效电路模型,并结合节点电压法计算出了最坏情况下接收器输入端差分信号的电位,运用Matlab 7.0.1软件绘制出了该信号与偏置电阻之间的关系曲线,确定了偏王电阻阻值的选取范围,结合试验和工程实践给出了偏置电阻的最佳取值,保证了通信的可靠性.
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| 关 键 词： | 卫星 串行通信 接口电路 最坏情况分析法 Matlab软件 |
Modeling and Simulation of the RS422 Interface Circuit on Board Satellite |
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| LI Xinbei,TAN Chao,GAO Shan,SHAO Genzhong.Modeling and Simulation of the RS422 Interface Circuit on Board Satellite[J].Spacecraft Engineering,2011,20(1):109-113. |
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| Authors: | LI Xinbei TAN Chao GAO Shan SHAO Genzhong |
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| Institution: | LI Xinbei TAN Chao GAO Shan SHAO Genzhong(Shandong Institute of Spacecraft Electrical Technology,Yantai 264003,China) |
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| Abstract: | Based on the worst case analysis and the superposition theorem,the equivalent model is set up for RS422 interface circuit.By using the node voltage method,the electric potential of the differential input signal is calculated,and the relation curves between the signal and the bias resistance are simulated with the help of Matlab 7.0.1 software.Finally,its bias resistance value range is given,and the best value is drawn according to the experiments and the circuit theory. |
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| Keywords: | satellite serial communication interface circuit the worst case analysis Matlab |
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