基于点目标特征参数提取的红外多光谱设计

为了提高等效温度、等效面积的稳定性和分辨率，提出一种基于点目标特征参数提取的红外多光谱设计方法。首先，通过多光谱设计准则模拟仿真了多波段的抗误差能力，确定了光谱设计的影响因素。然后，根据红外辐射测量系统噪声分析，确定了光电导中波和长波探测器都达到最佳工作性能的条件。最后，根据波段信噪比估计和红外大气窗口确定了光谱的具体分布。性能分析结果表明，设计的光谱能在目标各种变化的情况下，使中波和长波协同工作，大大提高了等效温度、等效面积的稳定性和分辨率。

Infrared multi-spectral design based on point target feature parameter extraction

In order to improve the stability and resolution of equivalent temperature and area, an infrared multi-spectral design method was proposed based on feature parameter extraction of point target. Firstly, the anti-error ability of multi bands was simulated by multi spectral design criteria, and the influencing factors of spectrum design were determined. According to the noise analysis of the ground-based infrared radiation measurement system, the conditions for the best working performance of the middle wave and long wave photodetectors were determined. Finally, the spectral distribution was determined according to the estimation of the band SNR and the infrared atmospheric window. The performance analysis results show that the designed spectrum can make the medium wave and the long wave work together in the case of various changes of the target, greatly improving the stability and resolution of the equivalent temperature and the equivalent area.