无线电工程
無線電工程
무선전공정
RADIO ENGINEERING OF CHINA
2012年
2期
49-51
,共3页
刘勇%周新力%宋斌斌%金慧琴
劉勇%週新力%宋斌斌%金慧琴
류용%주신력%송빈빈%금혜금
蒸发波导%电波传播%抛物方程%传输损耗
蒸髮波導%電波傳播%拋物方程%傳輸損耗
증발파도%전파전파%포물방정%전수손모
evaporation duct%electromagnetic wave propagation%parabolic equation%transmission loss
抛物方程方法已经被广泛地应用于电磁波传播的研究,并成为解决电磁波传播问题主要的工具。应用抛物方程和电波传播的基本理论,计算了电磁波在蒸发波导和标准大气中的传输损耗,得到了电波的空间传播损耗图,与射线理论的射线描迹技术得到的结论是一致的,但是抛物方程方法求解速度快,具有很好的实时计算特性,并且能弥补目前射线描迹技术尚不能精确描述空间场分布的缺点,因此更具有实用价值。
拋物方程方法已經被廣汎地應用于電磁波傳播的研究,併成為解決電磁波傳播問題主要的工具。應用拋物方程和電波傳播的基本理論,計算瞭電磁波在蒸髮波導和標準大氣中的傳輸損耗,得到瞭電波的空間傳播損耗圖,與射線理論的射線描跡技術得到的結論是一緻的,但是拋物方程方法求解速度快,具有很好的實時計算特性,併且能瀰補目前射線描跡技術尚不能精確描述空間場分佈的缺點,因此更具有實用價值。
포물방정방법이경피엄범지응용우전자파전파적연구,병성위해결전자파전파문제주요적공구。응용포물방정화전파전파적기본이론,계산료전자파재증발파도화표준대기중적전수손모,득도료전파적공간전파손모도,여사선이론적사선묘적기술득도적결론시일치적,단시포물방정방법구해속도쾌,구유흔호적실시계산특성,병차능미보목전사선묘적기술상불능정학묘술공간장분포적결점,인차경구유실용개치。
The parabolic equation method has been used widely in the electromagnetic wave propagation model and becomes the main tool to resolve the problem of electromagnetic wave propagation.With the parabolic equation method and the basic theory of radio-wave propagation,the transmission loss is calculated at the evaporation duct and at standard atmosphere,and the conclusion is the same with that of ray tracing technology.But the parabolic equation method can be solved more quickly,with real-time computing features,and the parabolic equation method can make up for the disadvantage,such as the ray tracing technology can't still accurately describe the spatial distribution,so it has more important application value in parabolic equation.