摘要
针对汽车信号传输线在温度-频率变化下的信号传输性能问题,应用节点电压法建立环境温度下同轴电缆的等效热路模型,分析并得出信号传输线在焦耳热和环境温度共同影响下的温度分布。通过实例分析,揭示了信号传输线传输参数随温度-频率的变化规律。
For the analysis of signal transmission performance of automotive signal transmission lines in temperature-frequency change ,the equivalent thermal circuit model of the coaxial cable is set up by use of the node voltage method ,which takes environ-ment temperature into account .The temperature distribution of signal transmission lines in the combined effect of Joule heating and environment temperature is analyzed and obtained .Through the case analysis ,the change law of transmission parameters of signal transmission lines with temperature-frequency is revealed .
出处
《机械工程与自动化》
2015年第6期176-178,共3页
Mechanical Engineering & Automation
基金
国家自然科学基金资助项目(51165004
51465013
61102012)
广西自然科学基金资助项目(2012GXNSFDA053029
2012GXNSFBA053176)
桂林电子科技大学研究生教育创新计划资助项目(GDYCSZ201443)
关键词
同轴电缆
传输参数
等效热路
等效电路
coaxial cable
transmission parameters
equivalent thermal circuit
equivalent circuit
