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Why Side Lobes appear in magnitude response?

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09-29-2004, 03:03 PM

Sandeep Chikkerur

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Why Side Lobes appear in magnitude response?

Hi

Why does the sudden change in the amplitude cause the side lobes appear to
apear when the maginitude response is obtained?
Ex: The magnitude response of the RECTANGULAR WINDOW.

Again, mathematically this can be proved with the sinc function.
However, I want to know the physical interpretation of the same

Regards
Sandeep

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