Title :
Measurement of frequency of nonsinusoidal signals
Author :
Grainger, Lance G. ; Bolinger, K.E.
Author_Institution :
A. Comeau & Associates Ltd., Edmonton, Alta., Canada
Abstract :
A method is presented which allows the fundamental frequency of a signal to be accurately obtained from the digital measurement of a signal of an unknown frequency. The method uses a long window time to measure samples. The two largest spectra in the vicinity of the frequency of interest are obtained, and an Sa curve is fitted to the magnitude of the two spectra to interpolate the actual frequency and magnitude
Keywords :
frequency measurement; interpolation; signal sampling; spectral analysis; digital measurement; frequency measurement; fundamental frequency; interpolation; long window time; magnitude; nonsinusoidal signals; sampled data; spectra; Difference equations; Discrete Fourier transforms; Fourier series; Fourier transforms; Frequency measurement; Integral equations; Sampling methods;
Conference_Titel :
Electrical and Computer Engineering, 1996. Canadian Conference on
Conference_Location :
Calgary, Alta.
Print_ISBN :
0-7803-3143-5
DOI :
10.1109/CCECE.1996.548243
