Optimal Cosine Modulated Nonuniform Linear Phase FIR Filter Bank Design via Stretching and Shifting Frequency Response of Prototype Filter
MetadataShow full item record
This paper proposes an optimal cosine modulated nonuniform linear phase finite impulse response (FIR) filterbank design. The frequency responses of all the analysis filters and the synthesis filters of the filter bank are derived based on both stretching and shifting the frequency response of the prototype filter. The total aliasing error of the filter bank is minimized subject to a specification on the maximum amplitude distortion of the filter bank as well as specifications on both the maximum passband ripple magnitude and the maximum stopband ripple magnitude of the prototype filter. This filter bank design problem is actually a functional inequality constrained optimization problem. Our recently developed integration approach is employed for solving the problem. Computer numerical simulation results show that our proposed design method outperforms existing design methods.
Copyright © 2010 IEEE This material is presented to ensure timely dissemination of scholarly and technical work. Copyright and all rights therein are retained by authors or by other copyright holders. All persons copying this information are expected to adhere to the terms and constraints invoked by each author's copyright. In most cases, these works may not be reposted without the explicit permission of the copyright.
Showing items related by title, author, creator and subject.
Optimal Design of Cosine Modulated Nonuniform Linear Phase FIR Filter Bank via Both Stretching and Shifting Frequency Response of Single Prototype FilterLing, B.; Ho, C.; Teo, Kok Lay; Siu, W.; Cao, J.; Dai, Q. (2014)This paper designs an optimal cosine modulated nonuniform linear phase finite impulse response (FIR) filter bank. The frequency responses of all the analysis filters and the synthesis filters of the filter bank are derived ...
Wu, C.; Teo, Kok Lay (2011)The authors consider a high-performance discrete Fourier transform (DFT)-modulated finite impulse response (FIR)filter bank with sharp transition width. The design of this filter bank is very expensive by the standard ...
Ling, B.; Al Hosni, K.; Dam, Hai (2011)This paper proposes a design of a low delay cosine modulated filter bank and subband amplifier coefficients for digital audio hearing aids denoising applications. The objective of the design is to minimize the delay of ...