Norman S. Kopeika

TL;DR: The proposed approach considers the structural function of atmospheric turbulence with dependence on the propagation angle and the results of calculations of the log-amplitude variance and propagation of a Gaussian beam through the anisotropic turbulent atmosphere are presented.

TL;DR: This work experimentally demonstrate the feasibility of implementing an imaging system based on radar principles and FPA of inexpensive detectors and it is shown to be capable of imaging objects from distances of at least 10 meters.

TL;DR: In this article, the effect of the SiPM breakdown voltage variation on the obtained energy spectrum was studied and an electronic approach was proposed to overcome this technological drawback, which provides an adequate temperature-dependent, commonly distributed high bias voltage and an individual offset-voltage fine tuning that enables adjustment of all the silicon photomultipliers to their optimum operating points.

TL;DR: In this article, the authors incorporated atmospheric aerosol and turbulence effects into visible and infrared search modeling and showed how the target acquisition probabilities and, conversely, the ranges at which targets can be detected are changed by the inclusion of atmospheric effects.

TL;DR: In this article, a general and inclusive framework for understanding and characterizing the atmospheric effects in the thermal infrared in imaging systems is presented This includes separation of the atmospheric distortions to their main two ingredients: optical turbulence, and scattering and absorption by atmospheric particulates.