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Q.

The first step in PCM is ________

A

quantization

B

modulation

C

sampling

D

none of the above

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Similar Questions

MCQ

1.

If the frequency spectrum of a signal has a bandwidth of 500 Hz with the highest frequency at 600 Hz, what should be the sampling rate, according to the Nyquist theorem?

A

200 samples/s

B

500 samples/s

C

1000 samples/s

D

1200 samples/s

Discussion

MCQ

2.

How many carrier frequencies are used in QPSK?

A

2

B

1

D

none of the above

Discussion

MCQ

3.

A constellation diagram shows us the __________ of a signal element, particularly when we are using two carriers (one in-phase and one quadrature).

A

amplitude and phase

B

amplitude and frequency

C

frequency and phase

D

none of the above

Discussion

MCQ

4.

The _____ scheme uses data patterns of size 2 and encodes the 2-bit patterns as one signal element belonging to a four-level signal

A

4B5B

B

2B1Q

C

MLT-3

D

none of the above

Discussion

MCQ

5.

Which quantization level results in a more faithful reproduction of the signal?

A

2

B

8

C

16

D

32

Discussion

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