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What is the model that has been adopt for characterizing round of errors in multiplication?

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What is the model that has been adopt for characterizing round of errors in multiplication?

(a) Multiplicative white noise model

(b) Subtractive white noise model

(c) Additive white noise model

(d) None of the mentioned

The question was posed to me in class test.

The above asked question is from Quantization Effects in the Computation of DFT in section DFT Efficient Computation – Fast Fourier Transform Algorithms of Digital Signal Processing

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The correct option is (c) Additive white noise model

To explain: Additive white noise model is the model that we use in the statistical analysis of round off errors in IIR and FIR filters.

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