What is an “Eye” in the sense of an “Eye Diagram” in the digital broadcast world? I saw an advert mentioning one in TV-Bay magazine.
- http://cnx.org/content/m18662/latest
- The eye diagram provides a powerful visualization tool to interpret the behavior of the received waveform regardless of the pulse shape.
- The eye diagram reveals important performance metrics for a communication link, including noise margin, ISI, timing sensitivity, and zero-crossing jitter. In addition, the eye diagram shows the optimum sampling time for the receiver to regenerate a bitstream from the received signaling waveform.
- From my interpretation of a figure in the article at the above link:
- The vertical size of the eye’s “iris ” is noise margin (amplitude), the horizontal size of the “iris” is timing error sensitivity.