GATE ECE 2009 | GATE ECE Year Wise Previous Years Questions

GATE ECE 2009

MCQ (Single Correct Answer)

-0.6

A communication channel with AWGN operating at a signal to noise ratio SNR > > 1 and band width B has capacity $${{C_1}}$$ . If the SNR is doubled keeping B constant, the resulting capacity $${{C_2}}$$ is given

$${C_2}\, \approx \,2\,{C_1}\,$$

$${C_2}\, \approx \,{C_1}\, + \,B$$

$${C_2}\, \approx \,{C_1}\, + \,2B$$

$${C_2}\, \approx \,{C_1}\, + \,0.3B$$

GATE ECE 2009

MCQ (Single Correct Answer)

-0.6

The amplitude of random signal is uniformly distributed between $$-$$5V and 5V

If the signal to quantization noise ratio required in uniformly quantizing the signals is 43.5 dB, the step size of the quantization is approximately

0.0333 V

0.05 V

0.0667 V

0.10 V

GATE ECE 2009

MCQ (Single Correct Answer)

-0.6

The amplitude of random signal is uniformly distributed between $$-$$5V and 5V

If the positive values of the signal are uniformly quantized with a step size of 0.05 V, and the negative values are uniformly quantized with a step size of 0.1V, the resulting signal to quantization noise ratio is approximately

46 dB

43.8 dB

42 dB

40 dB

GATE ECE 2009

MCQ (Single Correct Answer)

-0.6

The Nyquist plot of a stable transfer function G(s) is shown in the figure. We are interested in the stability of the closed loop system in the feedback configuration shown. GATE ECE 2009 Control Systems - Frequency Response Analysis Question 32 English 1

GATE ECE 2009 Control Systems - Frequency Response Analysis Question 32 English 1

GATE ECE 2009 Control Systems - Frequency Response Analysis Question 32 English 2

Which of the foloowing statements is true?

G(s) is is an all-pass filter.

G(s) has a zero in the right-half of S-plane.

G(s) is the impedance of a passive network.

G(s) is marginally stable.

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