Title :
Comments on "Maximum Frequency Indication: Minima Counting Versus Zero-Crossing Counting"
Author :
Offner, Franklin F.
Author_Institution :
Technological Institute, Northwestern University
Abstract :
The authors´ digital counting of minima is the equivalent of the classical method of frequency measurement by zero crossing of the signal after differentiation by an RC network.
Keywords :
Biomedical measurements; Blood flow; Circuits; Detectors; Doppler measurements; Filters; Fluid flow measurement; Frequency estimation; Frequency measurement; Velocity measurement; Electronics, Medical;
Journal_Title :
Biomedical Engineering, IEEE Transactions on
DOI :
10.1109/TBME.1983.325173
