基于Monin—Obukhov相似理论的蒸发波导PJ模式分析  

Analysis of Evaporation Duct PJ Mode Based on Monin-Obukhov Similarity Theory

作　　者：李梁[1] 张海勇[1] 

机构地区：[1]海军大连舰艇学院,大连116018

出　　处：《电子对抗》2013年第3期43-47,共5页Electronic Warfare

摘　　要：大气波导的存在，使海上通信过程中常出现信号的超视距传输，同时系统间的相互干扰问题也变得复杂。蒸发波导是海面常出现的大气波导类型，受海气交界面处微气象条件影响与控制。研究蒸发波导形成条件，确定波导高度具有实际意义和军事价值。在Monin-Obukhov相似理论的基础上，根据大气边界层理论利用PJ模式较好地探测了蒸发波导高度。该结果对指导海上通信装备的实际应用，进而提高海上通信保障能力具有重要意义。Maritime communication process often appears over-the-horizon transmission of signal due to the presence of atmospheric duct, at the same time, inter-system interference problem is also complicated. Evaporation duct is the ducting type which often appears on the sea, formed in ocean-atmosphere near the ground, influenced and controlled by micro-meteorological conditions at the air-sea interface. The study on the evaporation duct formation conditions, and the detection of the height of the duct are of practical significance and military value. Based on the Monin-Obukhov sim- ilarity theory, and according to the theory of the atmospheric boundary layer PJ mode, the evapora-tion duct height can be precisely detected. The result of the predict is of significance to guide the use of maritime communication equipment and to improve maritime communications support capability.

关 键 词：蒸发波导 Monin-Obukhov相似理论 PJ模式 通信装备 

分 类 号：TN011.3[电子电信—物理电子学]