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研究了海上异常折射环境对于雷达微波和远红外波段的影响,利用近海面大气折射环境数值模型以及福建平潭和西沙永兴岛的海洋环境观测数据对两个波段进行了对比,着重分析了雷达出现负折射、蒸发波导、表面波导以及悬空波导时红外波段大气折射环境的差异性。结果表明,红外波段容易受到温度因素的影响,而微波波段受水汽(或湿度)影响的程度更大;当雷达微波出现负折射时,红外波段却出现“波导”特征,但强度和厚度较弱;当微波出现大气波导时,红外波段显示为负折射特征。该项研究可为复杂海洋大气环境下两种探测系统的优化配置以及海洋环境对舰载光电探测系统的影响研究提供科学参考。
The influence of the abnormal refraction environment on radar microwave and the far infrared band was studied. The two bands were compared using the numerical model of atmospheric refraction environment near the sea surface and the marine environmental observation data of Pingtan and Yongxing Island in Fujian Province. The negative refraction, evanescent waveguides, surface waveguides and dangling waveguides infrared atmospheric refraction environment difference. The results show that the infrared band is easily influenced by the temperature, while the microwave band is more affected by the water vapor (or humidity). When the negative microwave refraction occurs, the infrared band appears “wave guide”, but the intensity and thickness Weak; when the microwave appears atmospheric waveguide, the infrared band showed negative refraction characteristics. This study can provide scientific reference for the optimal configuration of two kinds of detection systems in complex marine atmosphere and the research on the influence of marine environment on the shipborne photoelectric detection system.