Dean Klein
Dept. of Mech. Eng., New Mexico State Univ., Las Cruces, NM 88003
John M. Noble
U. S. Army Res. Lab., Battlefield Environment Directorate, ATTN: AMSRL-BE-S, White Sands Missile Range, NM 88002
Acoustic data were recorded from various tanks traveling a known path at constant speed. The data were compared with the fast field program (FFP) to determine how well the FFP model would collate with actual data covering a range up to 2 km. This was done to determine if the FFP could be used to reliably predict the propagation effects of the environment for acoustical arrays listening for tanks. As the tanks were run through their course, meteorological data were also recorded. The meteorological data included temperature, relative humidity, barometric pressure, wind speed, and wind direction from the surface to 2000 m. The comparisons were encouraging through most cases until tank transmissions were buried in the background noise.