Title :
Real-time parametric estimation of velocity using optical feedback interferometry
Author :
Plantier, Guy ; Servagent, Noëel ; Sourice, Anthony ; Bosch, Thierry
Author_Institution :
Ecole Superieure d´´Electron., Angers, France
fDate :
8/1/2001 12:00:00 AM
Abstract :
A low-cost laser sensor using optical feedback interferometry has been designed to measure velocities. With digital signal processing based on an order two autoregressive model of the optical power, an inaccuracy of about 0.5% can be reached
Keywords :
Doppler measurement; autoregressive processes; frequency estimation; laser feedback; laser velocimeters; laser velocimetry; light interferometry; signal processing; speckle; spectral analysis; Doppler frequency estimation; digital signal processing; low-cost laser sensor; moving target; multiplicative noise; optical feedback interferometry; optical power; real-time parametric estimation; second-order autoregressive model; speckle; spectral analysis; velocity measurement; Digital signal processing; Laser feedback; Laser modes; Nonlinear optics; Optical design; Optical feedback; Optical interferometry; Optical sensors; Optical signal processing; Velocity measurement;
Journal_Title :
Instrumentation and Measurement, IEEE Transactions on
