中文摘要：

为研究舰载红外传感器的有效作用距离,根据朗伯辐射源的定义和辐射特点,在对水面舰艇红外辐射特点进行科学分析的基础上,提出了水面舰艇特定波段、特定方向下的红外辐射功率计算模型。模型充分考虑到了舰艇作为点源与面源的双重属性,利用相对辐射度表给出了在不同方位的功率计算办法。为了验证模型的有效性,利用“FLIR”红外热像仪在相应波段进行了成像实验,结果表明：根据模型理论计算所得能见距离与实际能见距离吻合较好,为研究舰载红外传感器在不良气象条件下的工作情况提供了基本依据。

英文摘要：

In order to study the effective working distance for shipboard infrared sensors, according to the definition and features of Lambert radiation source, based on the scientific analysis for surface battleship＇s infrared radiation, a calculation model was put forward for ship＇s infrared radiation power on specific band range and on specific direction. The model fully considered the double property, namely being as a point source and simultaneously as a surface source, the power calculation formula was put out under different directions with the help of relative radiation table. In order to validate the model＇s effectiveness, the ＂FLIR＂ infrared imaging equipment was used to carry out the relevant experiment. The results show that the calculated working distance from the model witnesses a good agreement with the experimental results. The model can serve as a basic gauge for studing the working distance of shipboard infrared sensors under bad-weather conditions.