A noise model for quantized data

Author

Bertocco, M. ; Narduzzi, C. ; Paglierani, P. ; Petri, D.

Author_Institution

Dipt. di Elettronica e Inf., Padova Univ., Italy

Volume

2

fYear

1998

Firstpage

1243

Abstract

The paper analyzes the overall conversion error of a noisy analog-to-digital (A/D) converter affected by Gaussian noise at its input or generated within the A/D itself. It is shown that under mild conditions concerning the ratio between the input noise standard deviation and the quantization step, the overall conversion error can be modeled by a Gaussian random variable uncorrelated with the input sequence. The power of the global conversion error is evaluated in closed formulae together with its degree of variability. Numerical simulations support the proposed analysis

Keywords

Gaussian noise; analogue-digital conversion; integrated circuit modelling; white noise; Gaussian noise; closed formulae; global conversion error; input noise standard deviation; input sequence; noise model; noisy analog-to-digital converter; overall conversion error; quantization step; quantized data; random variable; Additive noise; Additive white noise; Analog-digital conversion; Circuit noise; Control systems; Electronic mail; Gaussian noise; Maximum likelihood estimation; Noise generators; Quantization;

fLanguage

English

Publisher

ieee

Conference_Titel

Instrumentation and Measurement Technology Conference, 1998. IMTC/98. Conference Proceedings. IEEE

Conference_Location

St. Paul, MN

ISSN

1091-5281

Print_ISBN

0-7803-4797-8

Type

conf

DOI

10.1109/IMTC.1998.676923

Filename

676923