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High-speed Particle Image Velocimetry Near Surfaces
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Analysis of atmospheric laser Doppler velocimeters
Applied Optics
|January 30, 2010
Abstract:
Fundamental relationships between backscattered power, range, wavelength, and number of scatter centers in the probe volume for the self-aligning, dual-scatter, laser doppler velocimeter are developed. It is shown that not all power scattered from the velocimeter probe volume contributes to a doppler signal. This fact leads to significant deviations in calculations involving signal-to-noise power ratios as compared to the case when only gross backscattered power is considered.
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