关键词: |
NIGHT VISION DEVICES, AVIATION GOGGLES, COMPUTER PROGRAM DOCUMENTATION, ALTITUDE, CLIMATOLOGY, CLOUDS, EYE, FOG, GOGGLES, ILLUMINATION, INPUT, LIGHT, MENU, MILITARY APPLICATIONS, NIGHT VISION, PRECIPITATION, REFLECTIVITY, SURFACES, USER FRIENDLY, VEHICLES, VISION, WEATHER, MICROCOMPUTERS, LAND TRANSPORTATION. |
摘要: |
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 NVD's. 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 NVD's 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 NVD's 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. |