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Author Velazquez, S.R. ♦ Nguyen, T.Q. ♦ Broadstone, S.R. ♦ Roberge, J.K.
Source IEEE Xplore Digital Library
Content type Text
Publisher Institute of Electrical and Electronics Engineers, Inc. (IEEE)
File Format PDF
Copyright Year ©1994
Language English
Subject Domain (in DDC) Technology ♦ Engineering & allied operations ♦ Applied physics
Subject Keyword Filter bank ♦ Analog-digital conversion ♦ Digital filters ♦ Image reconstruction ♦ Signal to noise ratio ♦ Signal synthesis ♦ Algorithm design and analysis ♦ Channel bank filters ♦ Signal resolution ♦ Linearity
Abstract This paper presents a novel approach to high-speed, high-resolution analog-to-digital (A/D) conversion using a hybrid filter bank with an array of slower speed A/D converters (ADCs). The hybrid filter bank is a new class of filter bank that employs continuous-time analysis filters to allocate a frequency band to each ADC in the array and discrete-time synthesis filters to reconstruct the digitized signal. The filter bank improves the speed and resolution of the A/D conversion by reducing the effects of mismatches between the ADCs in the array. This paper presents a filter design algorithm which minimizes mean-squared reconstruction error for the M-channel hybrid filter bank. A near-perfect-reconstruction, two-channel hybrid filter bank which introduces 0.00095 dB average deviation from 0 dB distortion and -108 dB average aliasing is developed.
Description Author affiliation: Lincoln Lab., MIT, Lexington, MA, USA (Velazquez, S.R.; Nguyen, T.Q.; Broadstone, S.R.; Roberge, J.K.)
ISBN 0780321278
Educational Role Student ♦ Teacher
Age Range above 22 year
Educational Use Research ♦ Reading
Education Level UG and PG
Learning Resource Type Article
Publisher Date 1994-10-25
Rights Holder Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Size (in Bytes) 360.54 kB
Page Count 4
Starting Page 116
Ending Page 119

Source: IEEE Xplore Digital Library