1992
DOI: 10.1515/freq.1992.46.1-2.2
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A Simple Method for Computation of the Quantization Error for n-D Denominator Separable z-Transforms

Abstract: The determination of the variance of the quantization error in multidimensional (η-D) digital filters involves the computation of the infinite square sum 00 00 00 J= Σ Σ -Σ y 2 (m 1 ,m 2 ,...,m.). m, = Ο »12 = Ο «ι.=ΟΑ simple method is presented for evaluating J based on the residue method using a partial fraction expansion in case of a denominator-separable z-transform y(z, , z 2 ..... z") which is assumed causal, rational and BIBO stable. The value of J is evaluated as a sum of simple integrals and these int… Show more

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