Title :
Dual sinusoidal modulation scheme for directional laser Doppler velocimeter
Author_Institution :
Technical University of Denmark, Electromagnetics Institute, Lyngby, Denmark
Abstract :
A dual sinusoidal modulation scheme introducing directional sensing of a laser Doppler velocimeter (LDV) employing a semiconductor laser source is described. With this technique using direct current modulation a single-sideband Doppler shift of 8.5 MHz with an image sideband suppression of 29dB is demonstrated.
Keywords :
Doppler effect; laser velocimeters; 8.5 MHz; Doppler shift; directional sensing; dual sinusoidal modulation scheme; image sideband suppression; laser Doppler velocimeter; semiconductor laser source;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19870081
