An improved method for classification and metrological characterization of disturbances on QAM signals

Author

Vito, Luca De ; Rapuano, Sergio ; Truglia, Gioacchino

Author_Institution

Facolta di Ingegneria, Univ. del Sannio, Benevento, Italy

Volume

55

Issue

1

fYear

2006

Firstpage

26

Lastpage

34

Abstract

This paper describes a method for classification and estimation of the most common disturbances on quadrature amplitude modulation (QAM) signals. The method is based on the evaluation of the statistical moments of the two-dimensional distribution of the received symbols of the constellation diagram. In the paper, the operating principle of the method is shown, and its implementation on a commercially available instrument is presented. The method has been validated with several simulated and actual European cable television (TV) signals compliant to the ETSI ETS 300429 standard. The results of these experimental investigations are also presented.

Keywords

interference (signal); quadrature amplitude modulation; signal classification; 2D symbol distribution; European cable television signals; constellation diagram; digital modulations; disturbance estimation; quadrature amplitude modulation signals; statistical moments; Amplitude estimation; Bit error rate; Condition monitoring; Constellation diagram; Degradation; Digital modulation; Digital video broadcasting; Instruments; Quadrature amplitude modulation; Telecommunication standards; Digital modulations; QAM; monitoring;

fLanguage

English

Journal_Title

Instrumentation and Measurement, IEEE Transactions on

Publisher

ieee

ISSN

0018-9456

Type

jour

DOI

10.1109/TIM.2005.862026

Filename

1583859