A low-complexity method for the design of low-delay cosine-modulated filter banks
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Authors
Wu, Changzhi
Date
2010Type
Conference Paper
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Wu, C. 2010. A low-complexity method for the design of low-delay cosine-modulated filter banks, pp. 69-72.
Source Title
1st International Conference on Green Circuits and Systems, ICGCS 2010
ISBN
School
School of Built Environment
Collection
Abstract
We present a new method for the design of the cosine-modulated filter bank with low complexity and low delay. The design of such a filter bank is formulated as a nonconvex optimization problem with equality constraints. An iterative scheme is developed to solve this optimization problem. To illustrate the effectiveness of the proposed method, a numerical example is presented. Comparing our method with that in [14], our approach can reduce the number of filter taps by up to 40 % while maintaining a relatively low delay. © 2010 IEEE.
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