DSP[5]

Question 1

is a mathematical operation used to
express the relation between input and output of
an LTI system.

Answer 1

Convolution

Question 2

There are two types of convolutions:

Answer 2

• Continuous convolution
• Discrete convolution

Question 3

is reverse process to
convolution widely used in signal and image
processing.

Answer 3

Deconvolution

Question 4

Convolution of two causal sequences is

Answer 4

Causal

Question 5

Convolution of two anti causal sequences is

Answer 5

Anti causal

Question 6

Convolution of two unequal length rectangles
results a

Answer 6

Trapezium

Question 7

Convolution of two equal length rectangles
results a

Answer 7

Triangle

Question 8

A function convoluted itself is

Answer 8

equal to
integration of that function.

Question 9

Is valid for discrete fourier transform.

Answer 9

Periodic Convolution

Question 10

Are the two basic operations that are similar to each other

Answer 10

Correlation and Convolution

Question 11

These operstions have two key features:

Answer 11

• shift-invariant
• linear

Question 12

It is a measure of similarity between signals and found using process similar to convolution. It is used to compare to signals.

Answer 12

Correlation

Question 13

Two types of correlation

Answer 13

• Cross Correlation
• Auto Correlation

Question 14

It gives a measure of similarity a sequence and its shifted version.

Answer 14

Auto Correlation

Question 15

Practice Solving in Papers.