Commenced in January 2007
Paper Count: 31097
An Optimized Design of Non-uniform Filterbank
Abstract:The tree structured approach of non-uniform filterbank (NUFB) is normally used in perfect reconstruction (PR). The PR is not always feasible due to certain limitations, i.e, constraints in selecting design parameters, design complexity and some times output is severely affected by aliasing error if necessary and sufficient conditions of PR is not satisfied perfectly. Therefore, there has been generalized interest of researchers to go for near perfect reconstruction (NPR). In this proposed work, an optimized tree structure technique is used for the design of NPR non-uniform filterbank. Window functions of Blackman family are used to design the prototype FIR filter. A single variable linear optimization is used to minimize the amplitude distortion. The main feature of the proposed design is its simplicity with linear phase property.
Digital Object Identifier (DOI): doi.org/10.5281/zenodo.1058887Procedia APA BibTeX Chicago EndNote Harvard JSON MLA RIS XML ISO 690 PDF Downloads 1355
 G. Shi, X. Xie, W. Zhong, "Recent advances and new design method in nonuniform filter banks," Proc. of IEEE Int. Conf. on Communications, Circuits and Systems, vol. 1, June 2006, pp. 211-215.
 X.M. Xie, X.Y. Chen and G.M. Shi, "A simple design method of linearphase nonuniform filter banks with integer decimation factors," Proc. of Int. Symp. on Circuit and Systems, vol. 1, Aug. 2005, pp. 724-727.
 X.M. Xie, S.C. Chan and T.I. Yuk, "A class of perfect reconstruction nonuniform cosine-modulated filterbank with dynamic recombination," Proc. of XI European Signal Processing Conf., vol. 2, Toulouse, France, Sept. 2002. pp. 549-552.
 S.C. Chan, X.M. Xie, "A rational subdivision scheme using cosinemodulated wavelets," Proc. of Int. Symp. on Circuits and Systems, vol.3, Vancouver, Canada, May 2004, pp. 409-412.
 S.C. Chan, X.M. Xie and T.I. Yuk, "Theory and design of a class of cosine-modulated nonuniform filterbank," Proc. of IEEE Int. Conf. on Acoustics, Speech, and Signal Processing," vol. 1, Istanbul, 2000, pp. 504-507.
 E. Elias, P. Lowenborg, H.Johansson and L.Wanhammar, "Treestructured IIR/FIR octave-band filterbanks with very low-complexity analysis filters," IEEE Int. Symp. on Circuits and Systems, ( ISCAS), vol. 2, May 2001, pp. 533-536.
 O.A. Niamut, R. Heusdens, "Sub-band merging in cosine-modulated filter banks," IEEE Signal Processing letter, vol. 10, no. 4, Apr. 2003, pp. 111-114.
 J.Li, T.Q.Nguyen and S. Tantaratana, "A simple design method for near perfect reconstruction nonuniform filterbanks," IEEE Trans. on Signal Processing, vol. 45, no. 8, Aug. 1997.
 R.K.Soni, A.Jain and R. Saxena, "New efficient iterative optimization algorithm to design the two channel QMF bank," Transactions on Engineering Computing and Technology, ISSN 1305-5313, vol. 18, Dec. 2006, pp. 206-210.
 S.K. Mitra, Digital Signal Processing. Tata McGraw Hill, 2001.
 P.P. Vaidyanathan, Multirate Systems and Filter Banks, Prentice Hall 1992.
 J. Sony, Akkarakaran and P.P. Vaidyanathan, "New results and open problems on nonuniform filterbanks," Proc. of IEEE, ICASSP, vol.3, 1999, pp. 1501-1504.
 F.J. Harris, "On the use of windows for harmonic analysis with the discrete Fourier transforms," IEEE Proc., vol. 66, no. 1, Jan. 1978, pp. 51-83.
 A.H. Nutall, "Some windows with very good side-lobe behavior," IEEE Trans. Acoustics, Speech, and Signal Processing, vol. ASSP-29, no. 1, Feb.1981, pp. 84 -91.