Laser Doppler Velocimetry Signal Processing Based on Spectral Refinement and Correction
2011 ◽
Vol 383-390
◽
pp. 6319-6323
Keyword(s):
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.
Keyword(s):
2000 ◽
Vol 229
(3)
◽
pp. 607-626
◽
1990 ◽
Vol 110
(3)
◽
pp. 166-172
1978 ◽
Vol 11
(6)
◽
pp. 555-559
◽
Keyword(s):
2003 ◽
Vol 14
(12)
◽
pp. 2047-2064
◽