中文摘要：

大气波导是海洋上经常产生的超视距传播环境,对岸基和船载电子信息系统性能具有重要的影响。论述了海上大气波导测量与预测方法、大气波导特征参数的统计结果以及大气波导传播特性计算方法,重点分析了波导传播对信息系统的影响评估及其实际应用。计算结果表明,大气波导可使雷达实现超视距探测,对雷达检测具有重要影响。

英文摘要：

The troposphere ducts are over-the-horizon propagation environment over sea and have some very important effects on various seashore-borne or ship-borne information systems. This paper describes the measurement and prediction methods,statistics results of parameters and calculation methods of propagation loss for troposphere duct over sea,and analyzes the effect assessment on information systems and applications of duct propagation. The computation results show that the troposphere duct can make the radar implement over-the-horizon detection and it has an important impact on radar detection.