探测与控制学报
探測與控製學報
탐측여공제학보
JOURNAL OF DETECTION & CONTROL
2010年
1期
39-44
,共6页
蒸发波导%射线追踪%多径效应
蒸髮波導%射線追蹤%多徑效應
증발파도%사선추종%다경효응
evaporation duct%ray trace%multi-path effect
目前对蒸发波导的大量研究集中于信道的路径损耗以及对波导高度的预测上,而对蒸发波导内的多径时延特征研究很少.通过射线追踪模型仿真研究了蒸发波导的多径时延量级和天线高度问题,并有所发现.海上实验证明了仿真的正确性,结果表明:由于蒸发波导结构的特殊性,其信道的多径时延量级很小,较适于海上微波远距离高速率通信.
目前對蒸髮波導的大量研究集中于信道的路徑損耗以及對波導高度的預測上,而對蒸髮波導內的多徑時延特徵研究很少.通過射線追蹤模型倣真研究瞭蒸髮波導的多徑時延量級和天線高度問題,併有所髮現.海上實驗證明瞭倣真的正確性,結果錶明:由于蒸髮波導結構的特殊性,其信道的多徑時延量級很小,較適于海上微波遠距離高速率通信.
목전대증발파도적대량연구집중우신도적로경손모이급대파도고도적예측상,이대증발파도내적다경시연특정연구흔소.통과사선추종모형방진연구료증발파도적다경시연량급화천선고도문제,병유소발현.해상실험증명료방진적정학성,결과표명:유우증발파도결구적특수성,기신도적다경시연량급흔소,교괄우해상미파원거리고속솔통신.
At present,most studies on evaporation duct focus on the propagation loss and the prediction of the evaporation duct height (EDH),while little effort has been devoted to the multi-path effect of evaporation duct.The purpose of this paper is to study the multi-path delay of the evaporation duct by simulation based on the ray trace model.The simulation results are verified by experiments over the sea.For its small multi-path delay,the evaporation duct can be used for the microwave communication system over the sea surface.