A. Sampling of Analog Signal

Question 1

converting a continuous-time signal into a discrete time signal.

Answer 1

Sampling

Question 2

is continuously sampled the analog signal x(t) at a sampling rate fs and fixed sampling interval T, which is defined as the time span between two sample points.

Answer 2

ADC (Analog to Digital Convertor)

Question 3

sample values are equally spaced from one another by a fixed sampling interval T

Answer 3

Uniform / periodic sampling

Question 4

is the type of sampling used most often in practice.

Answer 4

Fixed sampling interval T

Question 5

Fixed sampling interval T

Answer 5

x[n] = x(nT)

Question 6

The relationship of sampling period T and sampling rate fs is describe as.

Answer 6

t = nT = n/fs

Question 7

Mathematically, consider an analog sinusoidal signal described as

Answer 7

x(t) = Asin(2πft)

Question 8

When sampled uniformly at sampling rate fs, sampled sinusoidal signal is given by

Answer 8

x[n] = Asin(2πfnT)

Question 9

Sampling is too __________ -then the DSP will have to process a large amount of data in a much shorter time frame.

Answer 9

frequent

Question 10

Sampling is too __________- then important information might be missing in the sampled signal, this is called aliasing.

Answer 10

sparse