Marquardt optimization method to design two-channel quadrature mirror filter banks
Digital Signal Processing
Design of face-centred orthorhombic filter banks
Multidimensional Systems and Signal Processing
Peak constrained least-squares QMF banks
Signal Processing
Design of two-channel quadrature mirror filter bank using particle swarm optimization
Digital Signal Processing
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A new method for the design of general finite-duration impulse response (FIR) quadrature mirror-image filter (QMF) banks that eliminates the computation of large matrices is proposed. The design problem is formulated to include low-delay QMF banks, which are highly desirable in some applications. The paper concludes with design results and comparisons that show that conventional QMF banks can be designed with only a fraction of the computational effort required by a method due to Chen and Lee (1992). On the other hand, in the case of low-delay QMF banks, the proposed method can increase the stopband attenuation substantially compared with what can be achieved by existing methods