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本文介绍多光谱红外传感器的建模.美国陆军的夜视与电子传感器管理局目前所用的红外传感器模型,即NVTherm,只模拟单光谱传感器.为了模拟第三代多光谱红外传感器,目前的NVTherm模型正在更新.本文介绍了一种用来模拟目标及其背景辐射率的简单模型,并报导了对一些常见材料的模拟结果.本文推荐的目标辐射率模型支持波段选择研究.大气的光谱传播模拟是用MODTRAN完成的.本文对样品的辐射率进行了计算并与采集到的数据进行了比较.这些数据支持舍弃设该模型无效的虚假设.
This article describes the modeling of multi-spectral infrared sensors. The Army’s Night Vision and Electronic Sensors Authority currently uses an infrared sensor model, NVTherm, to simulate only single-spectrum sensors. To simulate the third generation of multispectral infrared sensors, the current NVTherm model Is being updated.This paper presents a simple model to simulate the target and its background emissivity and reports the simulation results for some common materials.The target emissivity model recommended in this paper supports band selection studies.The atmospheric spectral propagation simulation Done with MODTRAN This article calculates the emissivity of the sample and compares it to the data collected, which supports the abandonment of the null hypothesis that the model is invalid.