Eye pattern

Question 1

Eye pattern is

a. Is used to study ISI
b. May be seen on CRO
c. Resembles the shape of human eye
d. All of the above

Answer 1

All of the above

Question 2

The time interval over which the received signal may be sampled without error may be explained by

a. Width of eye opening of eye pattern
b. Rate of closure of eye of eye pattern
c. Height of the eye opening of eye pattern
d. All of the above

Answer 2

Width of eye opening of eye pattern

Question 3

What are eye pattern?

Answer 3

Eye pattern is used to study the effect of ISI in baseband transmission.
1 ) Width of .eye .opening defines the .interval over .which the .received wave can be sampled without
error from ISI.
2) The sensitivity of the system to timing error is determined by the rate of closure of the eye as the
sampling time is varied.
3) Height of the eye opening at sampling time is called margin over noise

Question 4

How is eye pattern obtained on the CRO?

Answer 4

Eye pattern can be obtained on CRO by applying the signal to one of the input channels and given an external trigger of 1/T
b Hz. This makes one sweep of beam equal to Tb seconds.

Question 5

What are eye pattern?

Answer 5

Eye pattern is used to study the effect of ISI in baseband transmission. 1 ) Width of eye opening defines the interval over which the received wave can be sampled without error from ISI. 2.) The sensitivity of the system to timing error is determined by the rate of closure of the eye as the sampling time is varied. 3.) Height of the eye opening at sampling time is called margin over noise