A simple method for designing highly selective M-channel infinite-impulse response (IIR) cosine-modulated filter banks (CMFBs) is proposed. High selectivity is achieved by relaxing the perfect reconstruction condition. The proposed method is simple because the design is based on a two-channel lattice structure with first-order allpass filters.
Highly selective M-channel IIR cosine-modulated filter banks
2003-10-02
2 pages
Article (Journal)
English
filtering theory , adaptive filters , M-channel filter banks , perfect reconstruction condition relaxation , first-order allpass filters , subband adaptive filtering , all-pass filters , IIR filters , infinite impulse response filter banks , two-channel lattice structure , lattice filters , highly selective IIR filter banks , IIR cosine-modulated filter banks
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