计算机工程与应用2011，Vol.47Issue(20)：129-131,158,4.DOI:10.3778/j.issn.1002-8331.2011.20.037
超宽带信号地面回波仿真方法研究
Study on ultra-wideband ground echo simulation
摘要
Abstract
Research on UWB(Ultra-Wideband) ground echo provides simulation supports for designs of UWB devices.For the sake of reliability of calculation, the dispersion of soil and fluctuation of ground surface should be taken into account. FDTD(Finite Difference of Time Domain) algorithms applied in ground echo calculation at present have the disadvantages of slow speed or large errors.By using CPML(Convolutional Perfectly Matched Layer) as absorbtion boundary condition, and multi-pole Debye model as soil complex dielectric coefficients,a CPML-FDTD algorithm is derived in multi-pole Debye media. Simulation is carried out under different conditions, and comparison with non-PML FDTD algorithm proves the validity and efficiency of the proposed algorithm.关键词
时域有限差分/卷积完全匹配层/超宽带信号/地面回波/多极点Debye模型Key words
Finite Difference of Time Domain (FDTD)/ Convolutional Perfectly Matched Layer (CPML)/ Ultra-Wideband (UWB) signal/ ground echo/ multi-pole Debye model分类
信息技术与安全科学引用本文复制引用
王全民,郭刚,付慧,黄柯棣..超宽带信号地面回波仿真方法研究[J].计算机工程与应用,2011,47(20):129-131,158,4.基金项目
国家自然科学基金(the National Natural Science Foundation of China under Grant No.60704038). （the National Natural Science Foundation of China under Grant No.60704038）
