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一、海上(海空)目标红外辐射特性任何物体,只要温度高于绝对温度零度都辐射红外线。温度不同,辐射强度也不同。其所对应的最大辐射值波长也不同,热成象仪正是根据目标与背景的热对比度(即目标辐射红外线强度与背景辐射红外线强度之差)来发现目标。对于海军应用热象仪来说,所要研究的目标主要是海上目标,海空目标。通过对目标特性的分析,才能确定研制和利用何种波段的热成象仪为最妥。1.海上目标辐射特性海上目标这里主要是指各种类型的水面舰艇。海上航行的各种舰艇都是红外辐射源。尤其是发动机的烟筒是一个强烈的辐射源。烟筒的喷口近于绝对黑体辐射,通常平均温度达
First, the sea (sea and air) target infrared radiation characteristics of any object, as long as the temperature is higher than the absolute temperature of zero radiation infrared. Different temperatures, radiation intensity is also different. It corresponds to the maximum wavelength of radiation is also different, the thermal imager is based on the target and the background thermal contrast (ie, the target radiation infrared intensity and background radiation infrared intensity difference) to find the target. For the Navy’s application of the thermal imager, the main objectives to be studied are the sea targets, the sea and air targets. By analyzing the characteristics of the target, it is best to determine which waveband thermal imaging device is being developed and utilized. 1. Sea target radiation characteristics Sea targets here mainly refers to various types of surface ships. Various naval vessels are infrared radiation source. In particular, the engine chimney is a strong source of radiation. Chimney nozzle nearly absolute black body radiation, the average temperature of up to