1
GATE ECE 2008
MCQ (Single Correct Answer)
+2
-0.6
A speech signal, band limited to 4 kHz and peak voltage varying between + 5V and - 5V is sampled at the Nyquist rate. Each sample is quantized and represented by 8 bits.
If the bits 0 and 1 are transmitted using bipolar pulses, the minimum bandwidth required for distortion free transmission is
2
GATE ECE 2008
MCQ (Single Correct Answer)
+2
-0.6
A speech signal, band limited to 4 kHz and peak voltage varying between + 5V and - 5V is sampled at the Nyquist rate. Each sample is quantized and represented by 8 bits.
Assuming the signal to be uniformly distributed between its peak values, the signal to noise ratio at the quantizer output is
3
GATE ECE 2008
MCQ (Single Correct Answer)
+2
-0.6
A speech signal, band limited to 4kHz and peak voltage varying between +5V and -5V is sampled at the Nyquist rate. Each sample is quantized and represented by 8 bits.
The number of quantitization levels required to reduce the quantization noise by a factor of 4 would be
4
GATE ECE 2008
MCQ (Single Correct Answer)
+2
-0.6
A memory less source emits n symbols each with a probability p. The entropy of the source as a function of n
Paper analysis
Total Questions
Analog Circuits
5
Communications
9
Control Systems
11
Digital Circuits
6
Electromagnetics
6
Electronic Devices and VLSI
8
Engineering Mathematics
11
Microprocessors
1
Network Theory
9
Signals and Systems
9
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