中文摘要：

在分析原有智能高速公路移动通信系统的基础上,用时域有限差分（FDTD）方法计算和仿真了泄漏同轴电缆在移动通信系统的性能,分析了泄漏同轴电缆在槽口处的电磁场分布,仿真了系统中不同位置的电场,为了得到更精确的结果,在网格剖分上采用了非均匀网格技术,仿真结果表明泄漏同轴电缆在智能高速公路移动通信系统中可以起到信息发送、传输和接收的作用,在日常通信频段内可以为公路上的机动车提供无盲区的宽频、高速传输的移动通信,为未来智能高速公路的发展与应用提供了理论依据。

英文摘要：

On the basis of analyzing the mobile communication system of intelligent highway,the performance of leaky coaxial cable in the mobile communication system were simulated by using finite difference time domain（FDTD） method,the electromagnetic wave distribution in the slots of leaky coaxial cable is analyzed,the electric fields of dif-ferent part of the mobile communication system are simulated,and to achieve the accurate radiation characteristics,much tinier mesh size of FDTD is selected.The experimental and numerical simulation results show that the leaky co-axial cable is a good choice to realize the transmitting,transmission and receiving of information in mobile communica-tion system,and the system can provide wide-band and high speed communication in the daily frequency band for the vehicles on the road,and the study set a theoretical base for the development and application of intelligent highway system in the future.