How to generate a time-continuous rectangular signal from given rise-time and over-shoot?

Hello,

I'm looking for method to generate a square wave signal for given

• over-shoot / under-shoot time and frequency
• rise-time / fall-time
• frequency

Thank you in advance!

Edit: Basically, I'm looking for a reverse of S=stepinfo(sys) or S=stepinfo(y, t) with S as input parameter.

Answer 1

[Star Strider]

The Signal Processing Toolbox pulstran function (related are rectpuls and square) will likely do what you want.

[Mei]

Thanks for your answer! Initially, I thought this might work by adding a square wave to a pulsed decaying sine but I'm struggling to get a slower rise-time. Basically, I'm looking for a reverse of S=stepinfo(sys) or S=stepinfo(y, t), where S is the input parameter and sys or (y, t) is the output.

[Star Strider]

My pleasure!

Estimating a system from the input and output is called 'system identification'. The System Identification Toolbox is devoted to doing exactly that.

[Mei]

Perfect, that's really nice. Thank you.

Just in case anyone having the same issues is reading: this might be useful as well.

[Star Strider]

As always, my pleasure!