Re: [Scilab-users] Frequency response

2018-09-16 Thread Claus Futtrup
Hi Rafael My problem is defined as a response function, where I use contour integral to achieve the step response. Then I differentiate it to achieve the impulse response. In essense I already "know" my response function. It contains some special features (it could for example be a

Re: [Scilab-users] Frequency response

2018-09-16 Thread Alan Teeder
-Original Message- From: Claus Futtrup Sent: Sunday, September 16, 2018 5:15 PM To: users@lists.scilab.org Subject: Re: [Scilab-users] Frequency response Hi Tim So, this is complicated. I admitted from the very beginning, it's probably just me that doesn't know how to read

Re: [Scilab-users] Frequency response

2018-09-16 Thread Tim Wescott
I didn't answer about ZPK because I didn't know either! It's not so much a Scilab thing as -- are you getting the signal processing right? On Sun, 2018-09-16 at 18:15 +0200, Claus Futtrup wrote: > Hi Tim > >  >So, this is complicated. > > I admitted from the very beginning, it's probably just

Re: [Scilab-users] Frequency response

2018-09-16 Thread Claus Futtrup
Hi Tim ZPK can mean many things (Google Search, I suppose) ... but after search I understand it's something with Zero Pole ... don't know what the letter K stands for, though. What I like about the Matlab example is that random data is generated to represent the impulse response, so this

Re: [Scilab-users] Frequency response

2018-09-16 Thread Rafael Guerra
Hi Claus, In your script, the response function resp(s) is definitely not a simple LTI system, not even a ratio of polynomials, because of the logarithmic term. I am not an expert but I suspect that such highly non-linear transfer functions are not handled by the standard Scilab DSP tools such

Re: [Scilab-users] Frequency response

2018-09-16 Thread Claus Futtrup
Hi Tim >So, this is complicated. I admitted from the very beginning, it's probably just me that doesn't know how to read the Scilab manual. It cannot be complicated for someone who knows and/or understand the manual. BTW, I also notice that nobody answered the question what ZPK means? ...