Non coherent spectral analysis of ADC using filter bank

Author

Rebai, Ch ; Dallet, D. ; Marchegay, Ph

Author_Institution

Lab. IXL, Bordeaux I Univ., Talence, France

Volume

1

fYear

2002

fDate

6/24/1905 12:00:00 AM

Firstpage

183

Abstract

The spectral analysis of ADC digital data has traditionally been done with discrete Fourier transform. This method imposes restrictions to optimize the results: one of these is coherent sampling. Recently, some filter structures have been used for the spectral analysis of sinusoidal signal corrupted by harmonics and noise. In this paper, we present a filter bank structure used for decomposition of a signal into his main spectral components. The main application examined is ADC spectral parameters extraction (SINAD, SNR, THD) with non coherent sampling. Computer simulations are used to demonstrate the performance of the proposed filter structure.

Keywords

analogue-digital conversion; digital filters; fast Fourier transforms; harmonic distortion; integrated circuit testing; notch filters; signal sampling; spectral analysis; ADC digital data; ADC testing; FFT; bandpass filter; biquadratic filter; computer simulations; digital filtering; filter bank structure; noncoherent spectral analysis; notch filter; second order filters; signal decomposition; sinusoidal signal; spectral parameters extraction; Application software; Computer simulation; Discrete Fourier transforms; Filter bank; Optimization methods; Parameter extraction; Power harmonic filters; Sampling methods; Signal to noise ratio; Spectral analysis;

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.2002.1006837

Filename

1006837