GATE ECE 2003 | GATE ECE Year Wise Previous Years Questions

GATE ECE 2003

MCQ (Single Correct Answer)

-0.6

A sinusoidal signal with peak-to-peak amplitude of 1.536V is quantized into 128 levels using a mid-rise uniform quantizer. The quantization-noise power is

$$0.768$$

$$48 \times {10^{ - 6}}{V^2}$$

$$12 \times {10^{ - 6}}{V^2}$$

$$3.072 V$$

GATE ECE 2003

MCQ (Single Correct Answer)

-0.6

If E_b, the energy per bit of a binary digital signal, is 10^-5 watt-sec and the one-sided power spectral density of the white noise, N₀ = 10^-6 W/Hz, then the output SNR of the matched filter is

26 dB

10 dB

20 dB

13 dB

GATE ECE 2003

MCQ (Single Correct Answer)

-0.6

A signal is sampled at 8 KHz and is quantized using 8-bit uniform quantizer. Assuming $$SN{R_q}$$ for a sinusoidal signal, the correct statement for PCM signal with a bit rate of R is

R = 32 kbps, $$SN{R_q}$$ = 25.8 dB

R = 64 kbps, $$SN{R_q}$$ = 49.8 dB

R = 64 kbps, $$SN{R_q}$$ = 55.8 dB

R = 32 kbps, $$SN{R_q}$$ = 49.8 dB

GATE ECE 2003

MCQ (Single Correct Answer)

-0.6

If S represents the carrier synchronization at the receiver and $$\rho $$ represents the bandwidth efficiency, then the correct statement for the coherent binary PSK is

$$\rho = 0.5,\,S$$ is required

$$\rho = 1.0,\,S$$ is required

$$\rho = 0.5,\,S$$ is not required

$$\rho = 1.0,\,S $$ is not required

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