Design of Magnitude Preserving Analog-to-Digital Converter (Special Section on High-Speed Analog Circuits and Signal Processing)

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概要

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• A new type of analog-to-digital (A/D) converter is introduced. The structure is based on a magnitudepreserving quadrature mirror filter (QMF) bank where the analysis bank is composed on IIR switched-capacitor (SC) filters. The analog output samples of the analysis filters are converted into digital form using individual A / D converters and combined by an IIR digital filter synthesis filter bank. This A / D converter is useful in applications where only the magnitude of the spectrum of the analog signal needs to be preserved. The structure incorporates the advantages of sub-band coding and reduces considerably the effect of mismatches among the subband A / D converters. In addition, the proposed scheme leads to an increase in the conversion speed by a factor of M when an M-channel QMF bank is used. An illustrative example verifying the good performance of the proposed approach is included.

• 社団法人電子情報通信学会の論文
• 1993-02-25

著者

• K.mitra Sanjit

  The Department Of Electrical And Computer Engineering University Of California

• Petraglia Antonio

  the Department of Electronic Engineering, Federal University of Rio de Janeiro

• Petraglia Antonio

  The Department Of Electronic Engineering Federal University Of Rio De Janeiro

関連論文

• Design of Magnitude Preserving Analog-to-Digital Converter (Special Section on High-Speed Analog Circuits and Signal Processing)

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