Noise Robust Oversampled Linear Phase Perfect Reconstruction Filter Bank With A Lattice Structure

An oversampled linear phase (LP) perfect reconstruction (PR) filter banks (FB) with a lattice structure involving the noise robust building block is presented. The structure is based on the generalized lapped pseudo-biorthogonal transform (GLPBT), which represents a large class of lapped transforms. Given an analysis bank of the GLPBT and a correlation matrix of noise, the proposed synthesis bank reduces the noise component and attains PR. Numerical results show that this class of filter banks is e#ective in transmission of oversampled data over noisy channels