Modeling correlation of quantized noise and periodic signals

Author

Kokkeler, André B J ; Gunst, André W.

Author_Institution

Dept. of Electr. Eng., Univ. of Twente, Enschede, Netherlands

Volume

11

Issue

10

fYear

2004

Firstpage

802

Lastpage

805

Abstract

A model for determining the cross-correlation function of partially correlated noise is presented. In this model a strong interferer is included and represented by a periodic signal common to both channels of the correlator. A general expression for the correlation function is deduced and verified. The power spectrum of a calculated correlation function is compared with a simulation. The results presented in this paper form a base for the design of modern multibit correlators. These are part of future generation radio astronomy receivers which increasingly have to cope with man-made interfering signals.

Keywords

correlation theory; noise; quantisation (signal); radio receivers; radioastronomical techniques; radiofrequency interference; time-varying systems; A-D converter; correlated noise; correlation modeling; cross-correlation function; dither; man-made interfering signal; modern multibit correlator; noise quantization; periodic signal; power spectrum; radio astronomy receiver; signal interferer; Analog-digital conversion; Correlators; Extraterrestrial measurements; Genetic expression; Interference; Quantization; Radio astronomy; Receivers; Signal generators; Signal to noise ratio; A/D converters; correlation; dither; quantization;

fLanguage

English

Journal_Title

Signal Processing Letters, IEEE

Publisher

ieee

ISSN

1070-9908

Type

jour

DOI

10.1109/LSP.2004.835481

Filename

1336830