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It is possible to map the jΩ-axis into the unit circle.

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It is possible to map the jΩ-axis into the unit circle.

(a) True

(b) False

This question was posed to me during an online interview.

This intriguing question originated from IIR Filter Design by Approximation of Derivatives in portion Digital Filters Design of Digital Signal Processing

1 Answer

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Correct choice is (a) True

The explanation is: By proper choice of the coefficients of {αk}, it is possible to map the jΩ-axis into the unit circle.

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