Tran : M - Channel Linear Phase Perfect Reconstruction Filter Bank with Rational Coefficients
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M -Channel Linear Phase Perfect Reconstruction Filter Bank With Rational Coefficients
This paper introduces a general class of -channel linear phase perfect reconstruction filter banks (FBs) with rational coefficients. A subset of the presented solutions has dyadic coefficients, leading to multiplierless implementations suitable for lowpower mobile computing. All of these FBs are constructed from a lattice structure that is VLSI-friendly, employs the minimum number of delay elem...
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This paper introduces a class of M-channel linear phase perfect reconstruction lter banks (LPPRFBs) with integer coeecients. The construction of these lter banks is based on a VLSI-friendly lattice structure which employs the minimum number of delay elements and robustly enforces both linear phase and perfect reconstruction properties. The lattice coeecients are parameterized as a series of lif...
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This paper investigates the theory and structure of a large subclass of M -channel linear-phase perfect-reconstruction FIR filter banks—systems with analysis and synthesis filters of length Li = KiM + , where is an arbitrary interger, 0 < M , and Ki is any positive interger. For this subclass of systems, we first investigate the necessary conditions for the existence of linear-phase perfect-rec...
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A class of cosine modulated filter banks in which all the sub-band filters have linear phase is presented. It has only M bands compared to the M 2 channel structures so far reported in the literature. The filter bank uses only one prototype filter for both analysis and synthesis side and structurally guarantee perfect reconstruction property. The formulation is based on DCT-II. The necessary an...
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