Title :
Measurement of time delay using the time shift property of the discrete Fourier transform (DFT)
Author :
Nagai, Keinosuke
Author_Institution :
University of Tsukuba, Ibaraki, Japan
fDate :
8/1/1986 12:00:00 AM
Abstract :
The time shift property of the discrete Fourier transform (DFT) is used in the measurement of time delay. The eccentricity of a screw rod has been experimentally measured, and delays of the ultrasonic wave have been known with the precision of one percent of the temporal sampling interval.
Keywords :
Acoustic measurements; Delay effects; Discrete Fourier transforms; Fasteners; Finite wordlength effects; Propagation delay; Random variables; Sampling methods; Time measurement; Ultrasonic variables measurement;
Journal_Title :
Acoustics, Speech and Signal Processing, IEEE Transactions on
DOI :
10.1109/TASSP.1986.1164899
