REMOTE TARGET IDENTIFICATION USING LASER DOPPLER VIBROMETRY

摘要

PROBLEM TO BE SOLVED: To provide a laser Doppler vibrometer architecture and detection method that can remotely identify targets on the basis of their natural vibration frequencies using a scanning Fabry-Perot interferometer.SOLUTION: A system comprises: a laser device; an optical circulator optically coupled to the laser device; a telescope optically coupled to the optical circulator; a tunable interferometer optically coupled to the optical circulator; a photodetector optically coupled to the tunable interferometer; and a signal processor electrically coupled to the photodetector.SELECTED DRAWING: Figure 1