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ID 17079
file
creator
Hinamoto, Takao
Ohnishi, Hiroaki
Lu, Wu-Sheng
subject
Error feedback
joint optimization
L2-scaling constraints
roundoff noise minimization
state-space realization
2-D digital filters
NDC
Electrical engineering
abstract
The joint optimization problem of error feedback and realization for two-dimensional (2-D) state-space digital filters to minimize the effects of roundoff noise at the filter output subject to L2-norm dynamic-range scaling constraints is investigated. It is shown that the problem can be converted into an unconstrained optimization problem by using linear-algebraic techniques. The unconstrained optimization problem at hand is then solved iteratively by applying an efficient quasi-Newton algorithm with closed-form formulas for key gradient evaluation. Analytical details are given as to how the proposed technique can be applied to the cases where the error-feedback matrix is a general, block-diagonal, diagonal, or block-scalar matrix. A case study is presented to illustrate the utility of the proposed technique.
journal title
IEEE Transactions on Signal Processing
volume
Volume 54
issue
Issue 11
start page
4302
end page
4310
date of issued
2006-11
publisher
IEEE
issn
1053-587X
ncid
publisher doi
language
eng
nii type
Journal Article
HU type
Journal Articles
DCMI type
text
format
application/pdf
text version
publisher
rights
Copyright (c) 2006 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted componet of this word in other works must be obtained from the IEEE.
relation url
department
Graduate School of Engineering