Combine/Merge oscilloscope data

I have retrieved the data from my oscilloscope via USB; data is now on CSV files.

I want to predict what two signals would look like if they were physically part of the same circuit and generate a plot as a simulation. How can this be done?

Answer 1

[Star Strider]

You would have to develop a mathematical model of your circuit and supply the same input to it as you did your physical circuit. Getting the signals from it as you did from your physical circuit would require putting those values into an array and then plotting them as a function of time.

[Daniel Lance]

I was worried that would be the answer! But that is the only way I could see doing it as well... My major issue is modeling the signal. The signal is noise on a comm port so it looks like a modulated frequency already.

File attached.

[Daniel Lance]

What do you mean by input? Is there a circuit simulation feature I'm missing? Thanks for your help!

[Star Strider]

No file yet.

The ‘input’ can be anything you want. I was envisioning a simple linear time-invariant model you could simulate using linear system theory and the expm function, since that would be the easiest way.

The circuit simulations could be in Simulink or specialised Toolboxes, such as the Signal Processing Toolbox, Communication Systems Toolbox or some others. I’ve not done what you want to do, so I don’t know if anything is already written to do what you want. I would search the File Exchange, Answers, and the documentation for the various Toolboxes to see if anything already exists that’s similar to what you want to do.