Title :
Quadrature demodulation technique used in laser Doppler velocimetry
Author_Institution :
Laser Zentrum Hannover eV
fDate :
3/19/1998 12:00:00 AM
Abstract :
The authors present a technique for applying quadrature demodulation to determine the frequency of Doppler signals. This technique enables low-frequency signals with less than one signal period to be measured. The dependence of measurement error on signal-to-noise-ratio and measurement time is also investigated
Keywords :
Doppler measurement; demodulation; laser velocimetry; measurement errors; laser Doppler velocimetry; low-frequency signal; measurement error; measurement time; quadrature demodulation; signal-to-noise ratio;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19980389
