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Can you explain the difference between the following two methods: 1)zero padding 2)periodic extension when computing DFT of finite...

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Question

Electrical Engineering

Can you explain the difference between the following twomethods:

1)zero padding

2)periodic extension

when computing DFT of finite extend signals.

Answer & Explanation Solved by verified expert
4.5 Ratings (914 Votes)
Zero padding is a simple concept it simply refers to addingzeros to end of a timedomain signal to increase its length Theexample 1 MHz and 105 MHz realvalued sinusoid waveforms we willbe using throughout this article is shown in the following plotZeropadding is a simple concept it simply refers to adding zeros toend of a timedomain signal to increase its length The example 1MHz and 105 MHz    See Answer
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