An eye diagram is a visualization technique that overlays multiple bit sequences to evaluate signal distortion and potential errors in a received digital signal. It shows the possible states of a signal over one bit period, with an open eye indicating little distortion and a closed eye showing higher chances of errors. Parameters like noise and interference affect the eye opening, with a wider open eye meaning lower error rates.

1. What is an eye diagram?
An eye diagram is an overlay of all possible received bit sequences, e.g. the sum of…
Note: should really be an overlap of “infinitely long” bit sequences to get a true eye. This catches all potential inter-symbol interference
results in…
(the above is considered to be an “open” eye)
Eye diagrams can be used to evaluate distortion in the received signal, e.g. a “closed” eye
Note:More the wide open eye more the network is error-free
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Parameters and their effect on signal performance w.r.t Eye diagram