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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。
In order to study the effective distance of shipborne infrared sensor, based on the definition and radiation characteristics of Lambert radiation source, based on the scientific analysis of the infrared radiation characteristics of surface ships, the infrared radiation power Calculate the model. The model fully takes into account the dual attributes of a ship as a point source and a surface source. The relative radiometer is used to calculate the power in different directions. In order to verify the validity of the model, imaging experiments were carried out in the corresponding band using the “FLIR” thermal imaging camera. The results show that the calculated visible distance according to the model theory is in good agreement with the actual visible distance. Sensor under adverse weather conditions provide a basic basis for the work.