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An approach for designing two-band rational rate critically sampled nonorthogonal filter banks with perfect reconstruction and multiple regularity orders is proposed. This approach relies on an updated result on the relationship between the filters in the filter bank to achieve all the desired properties. Filter responses are optimized to approximate ideal brick wall responses, subject to linear and...
An approach for designing a critically sampled FIR rational rate filter bank satisfying conditions such as perfect reconstruction, regularity orders and good frequency selectivity is proposed. This approach is used to design a rational discrete wavelet transform with dilation factor of 3/2 and satisfies a shift invariant property approximately. The rational filter bank design problem is transformed...
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