By Topic

Comparison of zero crossing counter to FFT spectrum of ultrasound Doppler

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

2 Author(s)
Cote, G.L. ; Dept. of Electr. & Syst. Eng., Connecticut Univ., Storrs, CT, USA ; Fox, M.D.

Doppler data were obtained from a normal carotid, popliteal, and radial artery. It was found that the results of a digital zero-crossing counter-mean frequency estimate and the first moment of the FFT (fast-Fourier-transform)-generated spectra were comparable for high signal-to-noise ratio (SNR), as in the case of the carotid arterial waveform. However, the digital zero-crossing with thresholding was a more accurate representation of the expected velocity-vs.-time waveforms in the case of low-SNR Doppler obtained from the popliteal and radial arteries.

Published in:

Biomedical Engineering, IEEE Transactions on  (Volume:35 ,  Issue: 6 )