By Topic

Decomposition-based design of linear phase variable digital filters

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

1 Author(s)
Tian-Bo Deng ; Dept. of Inf. Sci., Toho Univ., Chiba, Japan

Variable digital filters are especially difficult to design when the given variable design specifications are complicated. The author proposes a new method for designing variable one-dimensional (1-D) digital filters approximating both the given variable magnitude responses and linear phase (constant group delay) responses. The basic idea of the method is to reduce the difficult problem of directly designing a variable filter to the problem that only requires the design of the normal constant 1-D filters and 1-D polynomial approximations. To do so, we first propose a method for decomposing the given complex-valued variable design specifications into constant 1-D frequency response specifications and 1-D polynomial specifications. Then the resulting 1-D specifications are individually approximated, which is easy to do. Consequently, the original variable filter design problem can be easily solved

Published in:

Circuits and Systems I: Fundamental Theory and Applications, IEEE Transactions on  (Volume:46 ,  Issue: 3 )