基于光谱辐射计的航空发动机红外辐射特性测试方法

为体系化地开展地面目标的光谱辐射特性测试，提高光谱辐射计在地面目标红外特性测试中的精度，本文系统地介绍了基于光谱辐射计的地面目标红外辐射特性测试原理、光谱数据定标原理、目标测试及大气透过率测试方法。以基于光谱辐射计的航空发动机红外辐射特性测试为例，详述试验方案设计、试验实施过程、测试结果及分析。试验数据表明了本文所述方法的可行性和正确性，针对航空发动机的红外辐射特性测试方法也可推广应用于其他各类型地面目标的红外特性测试与评估当中，支撑地面目标红外光谱特性及隐身特性的研究。

Test of Infrared Radiation Characteristic for Aero-engines Based on Spectral Radiometer

To conduct a systematic spectral radiation characteristic test of ground targets, the accuracy of the spectral radiometer must be simultaneously determined. The principle of the ground target infrared radiation characteristic test, spectral data calibration, target test, and atmospheric transmittance test method based on a spectral radiometer are introduced in this study. Using the infrared radiation characteristic test of an aeroengine based on a spectral radiometer as an example, the test scheme design, implementation process, results, and analysis are described in detail. The experimental data demonstrated the feasibility and accuracy of the method described in this study. The infrared radiation characteristic test method for aeroengines can be applied to testing and evaluation of other types of ground targets and supporting research on the infrared spectral and stealth characteristics of ground targets.