CS601 Assignment 1 solution 2019

QUESTION NO 1:

Given diagram is representing the Differential Manchester encoding scheme. You are required to carefully analyze the diagram and then write the binary pattern represented by the diagram:

SOLUTION

0

1

0

0

0

1

1

1

0

QUESTION NO 2

Determine the following from the diagram given below:

Period in Milliseconds

Frequency

Phase Shift

SOLUTION:

· Period: The amount of time it takes for one complete cycle of motion

TIME = 1sec

=1/1000

=0.001mili sec

· frequency: the number of cycles per time unit.

Frequency = 9 cycle/second or 9 hz

Frequency =9 cycle/0.001miliseconds

Frequency =9000 cycle / milisecond

· The Phase Shift is how far the function is shifted horizontally from the usual position.

Phase shift = 180 degree

Question no 3:

Suppose power P of a signal is increased 30 times after passing through an amplifier. By writing all necessary formulas and calculation steps, you are required to calculate amplification (power gain) in proper unit.

Steps:

Av = output voltage/input voltage

Ai = output current/input current

Ap = Av * Ai

Amplifier Gains given in Decibels (dB):

Av = 20logAv

Ai = 20logAi

Ap = 10logAp