Coherent summation of spatially distorted laser Doppler signals by using a two-dimensional heterodyne detector array

1992 ◽  
Vol 17 (17) ◽  
pp. 1237 ◽  
Author(s):  
Kin Pui Chan ◽  
Dennis K. Killinger
Keyword(s):  
Laser Doppler ◽  
Detector Array ◽  
Two Dimensional ◽  
Heterodyne Detector ◽  
Doppler Signals

Laser Doppler Velocimetry Signal Processing Based on Spectral Refinement and Correction

2011 ◽  
Vol 383-390 ◽  
pp. 6319-6323
Author(s):  
Nian Long Song ◽  
Da Zhang ◽  
Qi Li
Keyword(s):  
Signal Processing ◽  
Laser Doppler Velocimetry ◽  
Operation Time ◽  
Laser Doppler ◽  
Doppler Signal ◽  
Doppler Velocimetry ◽  
Basic Principles ◽  
Doppler Signals ◽  
Sinusoidal Signals ◽  
Ratio Correction

In order to improve the accuracy of signal processing in Laser Doppler Velocimetry, a method based on the association of spectral refinement and correction is presented. Zoom-FFT and ratio correction are adopted to realize this method. Basic principles of zoom-FFT and ratio correction are expounded. FFT and the method are adopted to process sinusoidal signals and simulated laser Doppler signals with different frequencies separately in circumstance of MATLAB 7.0. Comparisons between the results of FFT and the method are carried out. The comparisons show that this method has the capability to improve the accuracy of laser Doppler signal processing significantly and the operation time is acceptable for LDV system.

Characteristics of laser-doppler signals from bubbles

1981 ◽  
Vol 7 (4) ◽  
pp. 439-460 ◽  
Author(s):  
W.W. Martin ◽  
A.H. Adbelmessih ◽  
J.J. Liska ◽  
F. Durst
Keyword(s):  
Laser Doppler ◽  
Doppler Signals

Femtosecond pump-probe spectroscopy using a two-dimensional smart pixel detector array

2003 ◽  
pp. 687-689
Author(s):  
S. Bourquin ◽  
R. P. Prasankumar ◽  
U. Morgner ◽  
F. Kärtner ◽  
T. Lasser ◽  
...  
Keyword(s):  
Detector Array ◽  
Two Dimensional ◽  
Pixel Detector ◽  
Pump Probe ◽  
Smart Pixel ◽  
Probe Spectroscopy

LDA measurement of sound: amplitude modulation of laser Doppler signals

1999 ◽  
Vol 10 (9) ◽  
pp. 812-823 ◽  
Author(s):  
John S Cullen ◽  
Clive A Greated ◽  
D Murray Campbell
Keyword(s):  
Amplitude Modulation ◽  
Laser Doppler ◽  
Doppler Signals ◽  
Lda Measurement
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