Improving and Qualifying Spectrum Analysis Made by Digital Scopes

Author

Liguori, Consolatina ; Paciello, Vincenzo ; Paolillo, Alfredo ; Pietrosanto, Antonio

Author_Institution

Salerno Univ., Fisciano

Volume

56

Issue

6

fYear

2007

Firstpage

2411

Lastpage

2419

Abstract

This paper deals with a fast Fourier transform (FFT) based measurement procedure, which has been implemented in a software module for wide-bandwidth digital scopes. The software module can be installed on the oscilloscope with the purpose of enhancing its performance in terms of frequency resolution and auto-configuration capability and allowing the auto-evaluation of the measurement uncertainty of the amplitudes and frequencies of the spectral components of the signal. The implemented measurement algorithms and the uncertainty auto-evaluation procedure are described in detail. Finally, experimental results are reported.

Keywords

fast Fourier transforms; measurement uncertainty; oscilloscopes; spectral analysis; FFT; digital scopes; fast Fourier transform; frequency resolution; measurement uncertainty; oscilloscope; software module; spectrum analysis; Fast Fourier transforms; Frequency domain analysis; Hardware; Instruments; Oscilloscopes; Sampling methods; Signal analysis; Software measurement; Software performance; Spectral analysis; Digital scope; digital signal processing; fast Fourier transform (FFT) analyzer; frequency domain analysis; uncertainty evaluation;

fLanguage

English

Journal_Title

Instrumentation and Measurement, IEEE Transactions on

Publisher

ieee

ISSN

0018-9456

Type

jour

DOI

10.1109/TIM.2007.908327

Filename

4389114