A new technique for detecting the presence of weak interfering digital signals in radiometric noise

Author

McIntyre, Eric M. ; Gasiewski, Albin J.

Author_Institution

Univ. of Colorado at Boulder, Boulder, CO, USA

fYear

2012

fDate

22-27 July 2012

Firstpage

1517

Lastpage

1520

Abstract

A technique for the detection of the presence of a broad but limited class of interfering signals resulting from common modulation methods in radiometer data is presented. The technique exploits the asymmetry of the signals´ modulation constellation in I-Q space and the resulting effect on the statistical 2D probability distribution of a low SNR signal when demodulated and distributed in I-Q space. The statistical limitations of this technique and its application to radiometry are discussed.

Keywords

geophysical signal processing; interference suppression; modulation; radiometry; remote sensing; signal detection; statistical distributions; I-Q space; interfering digital signal detection; radiometric noise; signal modulation constellation; statistical 2D probability distribution; Binary phase shift keying; Constellation diagram; Gaussian noise; Histograms; Microwave radiometry; Signal to noise ratio; Gaussian noise; digital modulation; radiometry; remote sensing; signal processing;

fLanguage

English

Publisher

ieee

Conference_Titel

Geoscience and Remote Sensing Symposium (IGARSS), 2012 IEEE International

Conference_Location

Munich

ISSN

2153-6996

Print_ISBN

978-1-4673-1160-1

Electronic_ISBN

2153-6996

Type

conf

DOI

10.1109/IGARSS.2012.6351246

Filename

6351246