DocumentCode :
1664424
Title :
Representation and measurement of nonlinearities in stimulus signals
Author :
Martins, Raul Carneiro ; Serra, Antonio Cruz
Author_Institution :
Instituto de Telecomunicacoes, Univ. Tecnica de Lisboa, Lisbon, Portugal
Volume :
1
fYear :
2002
fDate :
6/24/1905 12:00:00 AM
Firstpage :
437
Abstract :
In this paper we present a simple and cost effective yet accurate setup for measuring the amplitude distribution of a signal and its probability density function (pdf). From these it will be shown how to measure linear and nonlinear errors through a third order Taylor series representation of the distorted signal. We also show how this representation of the nonlinear behavior of the signal could be used as an horizontal metric for adequacy of the amplitude distribution in the histogram method. Finally, experimental results concerning the characterization of two sine wave generators are presented and compared with measurements made with a spectrum analyzer.
Keywords :
electric distortion measurement; errors; measurement theory; probability; series (mathematics); signal generators; signal representation; PDF; accurate measurement setup; distorted signal representation; histogram method; horizontal metric; linear errors; linear measurements; nonlinear errors; nonlinear measurements; probability density function; signal amplitude distribution measurement; signal nonlinear behavior; sine wave generator characterization; stimulus signal nonlinearities; third order Taylor series representation; Analog-digital conversion; Character generation; Cost function; Density measurement; Distortion measurement; Histograms; Nonlinear distortion; Signal processing; Telecommunications; Testing;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Instrumentation and Measurement Technology Conference, 2002. IMTC/2002. Proceedings of the 19th IEEE
ISSN :
1091-5281
Print_ISBN :
0-7803-7218-2
Type :
conf
DOI :
10.1109/IMTC.2002.1006881
Filename :
1006881
Link To Document :
بازگشت