| 不同电波传播模式的传输损耗比较 |
| |
| 引用本文： | 赵小龙.不同电波传播模式的传输损耗比较[J].天水师范学院学报,2006,26(2):31-33. |
| |
| 作者姓名： | 赵小龙 |
| |
| 作者单位： | 天水师范学院,数理与信息科学学院,甘肃,天水,741001 |
| |
| 摘 要： | 分析了电波的地波绕射传播、视距传播、散射传播和波导传播等四种传播模式,根据ITU-R和GZB建议的模型分别计算了各传播模式的基本传输损耗。结果表明在近海面环境下X波段电波的绕射传播不是最优的传播模式。利用抛物型方程计算得到的蒸发波导中电波传输损耗结果,对比可得:抛物型方程的数值结果与G ZB建议模型的结果一致,而稍小于ITU-R建议模型的结果。
|
| 关 键 词： | 电波传播 传输损耗 蒸发波导 |
| 文章编号： | 1371-1351(2006)02-0031-03 |
| 修稿时间： | 2005年12月21 |
A Comparison of Transmission Loss of Different models of EM propagation |
| |
| ZHAO Xiao-long.A Comparison of Transmission Loss of Different models of EM propagation[J].Journal of Tianshui Normal University,2006,26(2):31-33. |
| |
| Authors: | ZHAO Xiao-long |
| |
| Abstract: | Four propagation models of diffraction,line-of-sight,scatting and duct are analyzed.The basic transmission loss for each of the models is calculated according to the ITU-R model and GZB model.The result shows that the diffraction propagation on X-band is not the best model under the sea environment.It is clearly expressed that the numerical result of the parabolic equation is in good agreement with that of the GZB model but is smaller than that of ITU-R model. |
| |
| Keywords: | radio-wave propagation transmission loss evaporation duct |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
