Howtosignalprocessing
In telecommunication, an eye pattern, also known as an eye diagram, is an oscilloscope display in which a digital signal from a receiver is repetitively sampled and applied to the vertical input, while the data rate is used to trigger the horizontal sweep.
- What is eye diagram used for?
- What is the significance of eye diagram in data communication?
- What causes the eye pattern in digital communications?
What is eye diagram used for?
Eye diagrams are commonly used when simulating systems, evaluating products, and debugging system level issues. Generally, these systems contain a high speed data link, such as USB, DisplayPort, HDMI, ethernet, and many more.
What is the significance of eye diagram in data communication?
In communications, an eye diagram is used to visually assess the performance of a system in operation. It is called an eye diagram, or eye pattern, because the pattern looks like a series of eyes between a pair of rails for several types of coding schemes.
What causes the eye pattern in digital communications?
Ans: The eye pattern is a composite signal that reflects the channel bandwidth, attenuation, jitter, and rise/fall time variations. As the signal frequency increases for a given bandwidth and the signal is attenuated and interfered with, the eye begins to close.
