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建立了一套红外场景生成装置的主要技术指标性能评测体系,给出了指标的定义,建立了指标体系的物理模型,并给出了系统评测理论和测试方法。红外场景生成装置的主要技术指标包括时间特性、空间分辨率、空间均匀性、几何畸变、动态范围、最大辐射功率密度、最小可分辨温差、串扰和辐射对比度等,并针对这些指标进行了详细分析,认为这些指标能比较全面地评价红外场景生成装置的成像质量。这些指标中又以均匀性、对比度、几何畸变和空间分辨率最为重要,应为红外图像性能评测中优先考虑的评测指标。
A set of performance evaluation system of the main technical indexes of infrared scene generation device is established. The definition of the index is given, the physical model of the index system is established, and the theory and test method of system evaluation are given. The main technical indicators of the infrared scene generator include time characteristics, spatial resolution, spatial uniformity, geometric distortion, dynamic range, maximum radiation power density, minimum resolvable temperature difference, crosstalk and radiation contrast, etc., and detailed analysis of these indicators , Think these indexes can evaluate the imaging quality of infrared scene generating device more comprehensively. Among these indicators, uniformity, contrast, geometric distortion and spatial resolution are the most important ones, and should be the priority evaluation indexes in the performance evaluation of infrared images.