Aiming at the problem that the maximum operation range evaluation of infrared(IR)detection system has a large error,a cross-validation evaluation method is proposed.First,the mathematical model of IR radiation envelope of aerial targets is established and the relation curve between atmospheric transmittance and transmission distance under different environmental conditions is fitted.Then,the performance testing platform of the IR detection system is designed and the limit irradiance calibration is carried out.Finally,the equivalent model of point target irradiance between simulation and calibration is established,and the relation curve between atmospheric transmittance and the maximum range of the IR detection system is obtained.The above two types of curves are cross-validated,and the intersection point is regarded as the maximum operation range of the IR detection system under limited conditions.The experimental results show that:compared with the existing four types of evaluation methods,the cross-validation method can more accurately quantitatively evaluate the maximum operation range of the IR detection system for different targets under different environ-mental conditions.At the same time,the proposed method has generality and can be widely used in the maxi-mum operation range evaluation of various types of IR detection systems.
关键词
红外辐射/大气透过率/红外探测系统/辐照度标定/作用距离评估/交叉验证
Key words
infrared radiation/atmospheric transmittance/infrared detection system/irradiance calibration/the maximum operation range evaluation/cross-validation
维普
万方数据