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Eye diagram measurement using MATLAB

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Maigana.

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Hi all,
I'm having a real acquisition of binary digital signal by a digital storage oscilloscope. The acquired signal is expressed in the form of a matrix (matrix A of dimension: 4000*1000). Each column represents an acquired screen. Equivalently, the elements with indexes (i,j) in the matrix is the i-th acquired sample of the j-th acquired screen. Assuming sampling frequency of 4GS/s and the crossing points to be the 1429-th and 3432-th sample of each screen.
How can i use matlab to find the following:
1. Eye-height
2. Eye-width
3. Eye-SNR
I need the matlab codes please?
 

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