Field Test Results of a Laser Doppler Velocimeter and an Acoustic Doppler Wind Sounder.
AIR FORCE GEOPHYSICS LAB HANSCOM AFB MASS
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A field test program was conducted to evaluate the potential of two indirect wind sensing techniques as possible support in a warm fog dispersal system. The sensors examined were a Laser Doppler Velocimeter and an Acoustic Doppler Wind Sounder. Data from these devices were correlated with measurements taken by anemometers mounted upon a 61-m meteorological tower. The average deviation of the Laser Doppler Velocimeter was or - 1.0 msec in wind speed and or - 7 deg in azimuth. Five-minute averaging periods were taken and four to six altitudes were scanned during each run. The average deviation of the Acoustic Doppler Wind Sounder for 5-min averages was or - 0.9 msec in wind speed and or - 13 deg in azimuth. In one protracted run using 10-min averages, the deviations were or - 0.6 msec in wind speed and or - 6 deg in azimuth.
- Acoustic Detection and Detectors
- Optical Detection and Detectors