When measuring the performance of analog-to-digital converters it is necessary to measure harmonic distortion in the digital domain. A new method is described that allows the accurate measurement of harmonics to well below -100 dB without any of the usual restrictions on input frequency. The method involves the use of a modified triangular window whose length is derived from the data record by a simple zero-crossing technique. The window function consists entirely of integers and can therefore be easily implemented using fixed-point arithmetic.

Author: Adams, Robert W.
Affiliation: dbx, Inc., Newton, MA
JAES Volume 36 Issue 5 pp. 328-336; May 1988
Publication Date: May 1, 1988 Import into BibTeX
Permalink: https://www.aes.org/e-lib/browse.cfm?elib=5152

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