1
GATE ECE 1987
Fill in the Blanks
+2
-0
In Fig. if the CMRR of the operational amplifier is 60dB, then the magnitude of the output voltage is GATE ECE 1987 Analog Circuits - Operational Amplifier Question 17 English
2
GATE ECE 1987
Subjective
+8
-0
A rectangular pulse existing between t = 0 and t = T and having an amplitude A is to be received by a matched filter

(a) Draw the impulse response of the matched filter labeling all important points and the axes.
(b) Find the signal shape at the filter output. Lable all important points and axes.

3
GATE ECE 1987
MCQ (Single Correct Answer)
+2
-0.6
Companding in PCM systems leads to improved signal - to - quantization noise ratio. This improvement is for
A
lower frequency components only
B
higher frequency components only
C
lower amplitudes only
D
higher amplitudes only
4
GATE ECE 1987
MCQ (Single Correct Answer)
+2
-0.6
White Gaussian noise is passed through a linear narrow band filter. The probability density function of the envelope of the noise at the filter output is:
A
Uniform
B
Poisson
C
Gaussian
D
Rayleigh
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