论文标题
具有不均分布的特性的传输线的频率响应，并应用于铁路安全监控
Frequency Response of Transmission Lines with Unevenly Distributed Properties with Application to Railway Safety Monitoring
论文作者
论文摘要
本文提出了一种方法，可以快速有效地计算沿传输线的电压和电流，该电压和电流可能被“损坏”；这就是其电气性能的分布不均匀。该方法通过自相似电路网络近似传输线，并利用了我们先前有关该类别网络频率响应的工作。主要动机来自用于运输线模型的铁路轨道电路系统的研究。但是，与实际传输线相反，铁路轨道电路由于其规模和环境不确定性而更有可能损坏。此外，由于占据轨道部分的火车而导致的电路特性的变化也引起了人们的极大兴趣，以确保安全。结果，需要对损坏的轨道电路进行准确，快速的模拟，并可能为将来的相应健康监测研究领域做出贡献。
This paper proposes a method to quickly and efficiently compute the voltage and current along a transmission line which can be "damaged"; that is its electrical properties can be unevenly distributed. The method approximates a transmission line by a self-similar circuit network and leverages our previous work regarding the frequency response for that class of networks. The main motivation arises from the research for railway track circuit systems where transmission line models are often employed. However, in contrast to real transmission lines, railway track circuits are more likely to be damaged due to its scale and environmental uncertainties; furthermore, changes in circuit properties due to a train occupying a segment of the track also is of great interest as a means to ensure safety. As a result, an accurate and quick simulation of damaged track circuits is necessary and can contribute to the corresponding health monitoring research area in the future.
