BIAS IN ADC TERMINAL BASED GAIN AND OFFSET ESTIMATION USING THE HISTOGRAM METHOD

F. CorrĂȘa Alegria
Abstract:
It is demonstrated that, when using the Histogram Test Method to test an analogue to digital converter, the presence of additive noise in the test setup or in the converter itself causes a bias in the terminal based estimation of the gain but not in the estimation of the offset. This will be demonstrated here by analytically determining the estimation error as a function of the sinusoidal stimulus signal amplitude and the noise standard deviation. A closed form approximate expression will be proposed for the computation of the bias of terminal based gain. The results presented are numerically validated using a Monte Carlo procedure.
Keywords:
Analogue to Digital Converter, Histogram Test Method, Estimator Bias
Download:
IMEKO-WC-2009-TC4-472.pdf
DOI:
-
Event details
Event name:
XIX IMEKO World Congress
Title:

Fundamental and Applied Metrology

Place:
Lisbon, PORTUGAL
Time:
06 September 2009 - 11 September 2009