Vol. 30, Issue 2-3, pp. 443-453 (2000)

Abstract

A theoretical model of thermodetection system based on the linear filter theory is proposed. The modulation transfer function of a thermodetection system is expressed as a product of the modulation transfer functions of its subsystems. A numerical technique for computing the optical transfer function of an objective based on the wave optics is proposed, which takes into account spectral characteristics of the imaging chain. Infrared images obtained with the model simulate well the experimentally obtained images.