NASA NTRS · 19900000217
Frequency-Domain Signal Processor For Laser Velocimeter
Abstract
Dynamic range and accuracy increased. New signal processor for laser-velocimeter (LV) applications overcomes major limitations of present signal processors. System requires no input-signal conditioning other than that provided by amplifiers; it operates in instantaneous mode at signal levels from bursts containing as few as 150 photons down to photon-resolved regime in averaging mode. Digital value of signal-burst frequency sent to external computer system for conversion to value of absolute frequency. Residual turbulence intensity 0.2 percent, with little dependence on signal-to-noise ratio.
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Meyers, James F., Clemmons, James I., Jr., Stoughton, John W., Kanetkar, Sharad V., Savakis, Andreas E.. 1990-05-01. Frequency-Domain Signal Processor For Laser Velocimeter. https://ntrs.nasa.gov/citations/19900000217
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