Electronics and Communication Engineering
2018 · Paper 1
Take it one question at a time. Try an answer, then check your understanding.
Complete GATE ECE 2018 Paper 1 overview, original pages and practice · Timed previous-paper practice
Questions 64–65 of 65. Imported answers require review unless explicitly marked reviewed.
Question 54
Open questionECNAT2 marksNeeds review
A band limited low-pass signal
of bandwidth 5 kHz is sampled at a sampling rate
. The signal
is reconstructed using the reconstruction filter
whose magnitude response is shown below: 
The minimum sampling rate
(in kHz) for perfect reconstruction of
is ______.Log in to check the answer
You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answerQuestion 55
Open questionECNAT2 marksNeeds review
Let
,
be 8-point DFT of a sequence
, where
. The value (correct to two decimal places) of
is ______.Log in to check the answer
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