[1]王复明,李嘉,蔡迎春..路面雷达电磁波的时域有限差分法模拟[J].郑州大学学报(工学版),2005,26(01):28-32.[doi:10.3969/j.issn.1671-6833.2005.01.008]
　Wang Fuming,LI Jia,Cai Yingchun.Time-domain finite difference method simulation of electromagnetic waves in pavement radar[J].Journal of Zhengzhou University (Engineering Science),2005,26(01):28-32.[doi:10.3969/j.issn.1671-6833.2005.01.008]

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路面雷达电磁波的时域有限差分法模拟()

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《郑州大学学报(工学版)》[ISSN:1671-6833/CN:41-1339/T]

卷:

26

期数:

2005年01期

页码:

28-32

栏目:

出版日期:

1900-01-01

文章信息/Info

Title:

Time-domain finite difference method simulation of electromagnetic waves in pavement radar

作者:

王复明; 李嘉; 蔡迎春.

郑州大学环境与水利学院,河南,郑州,450002, 大连理工大学土木工程学院,辽宁,大连,116024

Author(s):

Wang Fuming; LI Jia; Cai Yingchun

关键词:

路面雷达;  时域有限差分法;  正演

Keywords:

road radar;  Finite difference method in time domain;  Positive acting

DOI:

10.3969/j.issn.1671-6833.2005.01.008

文献标志码:

A

摘要:

介绍了路面雷达电磁波在路面结构中传播的基本原理,结合时域有限差分法算法,分别分析一维FDTD方程、软激励源、分层介面的有效参数、吸收边界条件在应用实现模拟过程中的重要影响,并建立了空气耦合式路面雷达的正演模型.理论模拟和实际工程数值算例表明:该模型对路面雷达正演模拟是可行的,误差不超过2%.

Abstract:

The basic principle of electromagnetic wave propagation of pavement radar in pavement structure is introduced, combined with the time-domain finite difference method algorithm, the one-dimensional FDTD equation, the effective parameters of the soft excitation source, the effective parameters of the hierarchical interface, and the important influence of absorption boundary conditions in the application simulation process are analyzed, and the forward evolution model of air-coupled pavement radar is established. Theoretical simulation and practical engineering numerical examples show that the model is feasible for road radar forward simulation, and the error does not exceed 2%.

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