Night Vision Goggles (NVG) Software User's Guide, Version 5.1
Abstract:
Numerous military applications utilize night vision devices NVD. Aviation and ground transportation are two applications that Night Vision Goggles NVG is intended to support. Aviators and vehicle drivers must have an idea of what the ambient light levels are before using NVDs. Not enough light precludes safe use of the devices, while enough light allows for adequate performance of the required tasks by the unaided eye. The weather also effects natural illumination. NVG is intended to provide users of NVDs with forecasts of favorable and unfavorable times of use. The criteria for NVD use times are specified by the user in terms of lunar altitude and percent illumination as well as illumination level to ensure wide application of the software in terms of the different NVDs and different services. The illumination level for user specified times can also be determined. Current or forecast meteorological conditions or climatology may be input to realistically account for the effects of clouds, fog, precipitation, and surface reflectivity. The user friendly program is menu driven for caw of operation. Illumination, Weather effects.