Title :
Implementing uncertainty auto-evaluation capabilities on an intelligent FFT-analyzer
Author :
Liguori, Consolatina ; Paolillo, Alfredo
Author_Institution :
DAEIMI, Univ. of Cassino, Italy
fDate :
6/24/1905 12:00:00 AM
Abstract :
The paper describes an intelligent FFT analyzer, capable to provide the tone characteristics of the analyzed signal and their uncertainty during on-line operation. The implementation on a multi-DSP architecture allows a real-time behavior to be assured. The experimental characterization proves the good performance and highlights the instrument capability to optimally operate on different kind of signals.
Keywords :
analogue-digital conversion; computerised instrumentation; digital signal processing chips; fast Fourier transforms; interpolation; measurement uncertainty; algorithm uncertainty; auto-configuration module; equivalent sampling frequency; general-purpose development environment; hardware architecture; hardware interrupt; intelligent FFT-analyzer; interpolated FFT; multi-DSP architecture; on-line operation; real-time behavior; signal tone characteristics; spectral leakage; uncertainty analysis; Algorithm design and analysis; Digital signal processing; Frequency estimation; Frequency measurement; Hardware; Instruments; Measurement uncertainty; Particle measurements; Signal analysis; Signal processing algorithms;
Conference_Titel :
Instrumentation and Measurement Technology Conference, 2002. IMTC/2002. Proceedings of the 19th IEEE
Print_ISBN :
0-7803-7218-2
DOI :
10.1109/IMTC.2002.1006920
