Signal-to-noise improvement in laser Doppler velocimetry
Abstract
Simple optical methods are described that, working in conjunction with an electronic synchronous detector, can substantially increase signal detectability in laser Doppler velocimetry. These methods involve rotating the laser polarization to amplitude-modulate exclusively the Doppler signal.
- Publication:
-
Applied Optics
- Pub Date:
- December 1980
- DOI:
- Bibcode:
- 1980ApOpt..19.4222L
- Keywords:
-
- Amplitude Modulation;
- Laser Doppler Velocimeters;
- Light Modulation;
- Noise Reduction;
- Signal To Noise Ratios;
- Electric Fields;
- Optical Polarization;
- Phase Locked Systems;
- Polarizers;
- Signal Detectors;
- Instrumentation and Photography;
- VELOCIMETRY: LASER DOPPLER;
- DATA PROCESSING