EyeDiagram

Better eye diagram generation code in MATLAB. Used a lot in my DPhil Thesis.

How much better?

A before and after is provided here:

Unlike MATLAB's built in eyediagram() function, the more data you provide eyediagram_dense() the prettier it looks, case in point (for a different communications system with a higher error rate):

What does your code do? eyediagram_dense creates a raster image of an eye diagram, capturing signal density at each point on the image. This function creates a diagram, alongside returning all the important information captured within it as a MATLAB struct.

eyediagram_dense() also has the ability to detect zero crossings, and automatically label the x axis accordingly.

I mainly work with On-Off Keying, so for the y axis the system is able to detect two levels. In a future update I will be able to detect PAM.

With optional arguments, histograms can be placed along the x and y axis, for zero crossing distributions (a way to test if you have double-Dirac) and to sanity check your bit levels.

What is coming next? My goals for this repo are as follows: