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Which of the following conditions are in the favor of Pade approximation method?

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in Digital Signal Processing by (829k points)
Which of the following conditions are in the favor of Pade approximation method?

(a) Desired system function is rational

(b) Prior knowledge of the number of poles and zeros

(c) Desired system function is rational & Prior knowledge of the number of poles and zeros

(d) None of the mentioned

This question was posed to me in an international level competition.

Origin of the question is Pade Approximation Method topic in section Digital Filters Design of Digital Signal Processing

1 Answer

+1 vote
by (1.4m points)
Correct answer is (c) Desired system function is rational & Prior knowledge of the number of poles and zeros

Best explanation: The Pade approximation method results in a perfect match to Hd(z) when the desired system function is rational and we have prior knowledge of the number of poles and zeros in the system.

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