@article{(Open Science Index):https://publications.waset.org/pdf/9998911,
	  title     = {Optimal Design of Two-Channel Recursive Parallelogram Quadrature Mirror Filter Banks },
	  author    = {Ju-Hong Lee and  Yi-Lin Shieh},
	  country	= {},
	  institution	= {},
	  abstract     = {This paper deals with the optimal design of two-channel recursive parallelogram quadrature mirror filter (PQMF) banks. The analysis and synthesis filters of the PQMF bank are composed of two-dimensional (2-D) recursive digital all-pass filters (DAFs) with nonsymmetric half-plane (NSHP) support region. The design problem can be facilitated by using the 2-D doubly complementary half-band (DC-HB) property possessed by the analysis and synthesis filters. For finding the coefficients of the 2-D recursive NSHP DAFs, we appropriately formulate the design problem to result in an optimization problem that can be solved by using a weighted least-squares (WLS) algorithm in the minimax (L∞) optimal sense. The designed 2-D recursive PQMF bank achieves perfect magnitude response and possesses satisfactory phase response without requiring extra phase equalizer. Simulation results are also provided for illustration and comparison.
},
	    journal   = {International Journal of Computer and Information Engineering},
	  volume    = {8},
	  number    = {7},
	  year      = {2014},
	  pages     = {1224 - 1230},
	  ee        = {https://publications.waset.org/pdf/9998911},
	  url   	= {https://publications.waset.org/vol/91},
	  bibsource = {https://publications.waset.org/},
	  issn  	= {eISSN: 1307-6892},
	  publisher = {World Academy of Science, Engineering and Technology},
	  index 	= {Open Science Index 91, 2014},
	}