Abstract:

More and more counter-measures and equipments are used to disturb the normal working of imaging system,laser interference is one of the most common and effective counter-measures,the effects of laser interference on performance prediction were hardly analyzed.Therefore,the relationship between laser energy absorbed by infrared imaging system and target contrast enhancement is analyzed on the basis of NVThermIP performance prediction model and the quantitative relation between laser energy and contrast enhancement is got,then contrast threshold function of the infrared imaging system is modified.The effects of laser interference on capability of performance prediction is compared and analyzed by NVThermIP model.The results of this research could provide the basis for performance prediction appraisal and theoretical model of infrared imaging system.

Key words: infrared imaging system;NVThermIP model;performance prediction;laser interference