1
GATE ECE 2017 Set 2
Numerical
+1
-0
A sinusoidal message signal is converted to a PCM signal using a uniform quantizer. The required signal to quantization noise ratio (SQNR) at the output of the quantizer is 40dB. The minimum number of bits per sample needed to achieve the desired SQNR is ________ .
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2
GATE ECE 2016 Set 3
MCQ (Single Correct Answer)
+1
-0.3
A binary baseband digital communication system employs the signal $$$p\left( t \right) = \left\{ {\matrix{ {{1 \over {\sqrt {{T_s}} }},} & {0 \le t \le {T_s}} \cr {0,} & {otherwise} \cr } ,} \right.$$$

for transmission of bits. The graphical representation of the matched filter output y(t) for this signal will be

A
GATE ECE 2016 Set 3 Communications - Noise In Digital Communication Question 39 English Option 1
B
GATE ECE 2016 Set 3 Communications - Noise In Digital Communication Question 39 English Option 2
C
GATE ECE 2016 Set 3 Communications - Noise In Digital Communication Question 39 English Option 3
D
GATE ECE 2016 Set 3 Communications - Noise In Digital Communication Question 39 English Option 4
3
GATE ECE 2015 Set 2
Numerical
+1
-0
A sinusoidal signal of amplitude A is quantized by a uniform quantizer. Assume that the signal utilizes all the representation levels of the quantizer. If the signal to quantization noise ratio is 31.8 dB, the number of levels in the quantizer is _________ .
Your input ____
4
GATE ECE 2014 Set 1
Numerical
+1
-0
The capacity of a Binary Symmetric Channel (BSC) with cross - over probability 0.5 is ______ .
Your input ____
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