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The ideal low pass filter cannot be realized in practice.

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in Digital Signal Processing by (829k points)
The ideal low pass filter cannot be realized in practice.

(a) True

(b) False

This question was addressed to me in an interview.

I'm obligated to ask this question of General Considerations for Design of Digital Filters in chapter Digital Filters Design of Digital Signal Processing

1 Answer

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Right option is (a) True

The explanation is: We know that the ideal low pass filter is non-causal. Hence, a ideal low pass filter cannot be realized in practice.

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