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In this paper, a novel Hessenberg-based input balanced realization for all-pass systems is derived. The expression of roundoff noise gain for this structure is obtained. An Nth order system implemented with a coupled all-pass sub-filters proposed in [18], in which each all-pass filter is realized using our proposed structure, yields a roundoff noise gain of N + 1, smaller than that of the classical...
In this paper, a novel lattice network-based structure is derived for a canonic realization of recursive digital filters. For an Nth order filter, unlike the existing lattice structures the proposed structure has 2N free parameters that can be used to improve the structure properties. The relationship between the transfer function coefficients of the filters and the parameters of the proposed structure...
In this paper, a novel structure is derived for digital filter which is robust against the FWL errors. This structure, denoted as SIMP, is actually an improved version of the one reported in the work of Li et al. (2000) in terms of implementation efficiency and reducing quantization errors. The expression of transfer function sensitivity measure is derived for each structure. Two numerical examples...
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