2011/10/12 Rudy Eschauzier :
> Hi Carnë,
>
> Looking into it some more, I found that even setting small values in the
> output polynomials to zero is an error. We need to remove lines like this:
>
> b_out(abs(b_out) a_out(abs(a_out)
> The reason is that the tolerance applies to the positions of the
Hi Carnë,
Looking into it some more, I found that even setting small values in the output
polynomials to zero is an error. We need to remove lines like this:
b_out(abs(b_out) [b a]=impinvar([1], [1, 2, 1], 100)
b =
0 0
a =
1.0 -1.98010 0.98020
Note how the coefficients of b a
Eschauzier
Cc: Juan Manuel Parrilla Gutiérrez ;
"octave-dev@lists.sourceforge.net"
Sent: Tuesday, October 11, 2011 2:59 PM
Subject: Re: [OctDev] Impulse invariance transform implementation
Ok. I had just followed the examples on this page
http://www.uccs.edu/~cfelton/ece5655/chp8_matl
2011/10/11 Rudy Eschauzier :
> Hi Carnë,
> Yes, I am very sure. In fact, removing zero and near-zero elements
> introduces a bug. Note how both a_out and b_out are polynomials. Taking an
> element out, will shift the polynomial weights to the next power, messing up
> the entire polynomial. The resu
.
From: Carnë Draug
To: Rudy Eschauzier
Cc: Juan Manuel Parrilla Gutiérrez ;
"octave-dev@lists.sourceforge.net"
Sent: Tuesday, October 11, 2011 1:14 PM
Subject: Re: [OctDev] Impulse invariance transform implementation
2011/10/10 Rudy Eschauzier :
> Attached are updated
2011/10/10 Rudy Eschauzier :
> Attached are updated files for the impulse invariance transform and its
> inverse. I have also attached a diff file against the current svn revision.
>
> These are the changes:
> -impinvar and invimpinvar now include test cases.
> -bug fixes
> -code optimization (vect
Attached are updated files for the impulse invariance transform and its
inverse. I have also attached a diff file against the current svn revision.
These are the changes:
-impinvar and invimpinvar now include test cases.
-bug fixes
-code optimization (vectorization)
Please let me know if you hav
2011/10/1 Rudy Eschauzier :
>> Plus, h1_deriv takes ts as argument but doesn't do anything with it.
>> Is something missing one the code?
>
> This is probably a leftover from earlier experimentation and can be removed.
>
> As additional background information, I tracked down the paper I used to
> w
> Plus, h1_deriv takes ts as argument but doesn't do anything with it.
> Is something missing one the code?
This is probably a leftover from earlier experimentation and can be removed.
As additional background information, I tracked down the paper I used to write
the code:
http://www.ingelec.un
2011/9/30 Rudy Eschauzier :
> Why not use invimpinvar, or iimpinvar?
> Rudy.
It's commited and I named it invimpinvar. I also added notes about
being the inverse on the help text.
With a big help from Juan Carbajal, I changed the API to take Sampling
frequencies instead of sampling time (so it's
Date: Fri, 30 Sep 2011 02:59:49 -0700
From: reschauz...@yahoo.com
To: carandraug+...@gmail.com; joanma...@gmail.com
CC: octave-dev@lists.sourceforge.net
Subject: Re: [OctDev] Impulse invariance transform implementation
Why not use invimpinvar, or iimpinvar?
Rudy.
Inverse is usually used to
Why not use invimpinvar, or iimpinvar?
Rudy.
> I'll wait 3 days or until someone suggests a name for c2d_imp before
> making the commit.
>
> Carnë--
All of the data generated in your IT infrastructure is seriously valuab
2011/9/29 Juan Manuel Parrilla Gutiérrez :
> Hi,
> thank you for your answer. I hope the new function will be in octave asap :)
> also, I guess you would keep matlab's name?
If anything, it will be in the octave-forge (not in octave) signal
package. I guess we can make a new release of the package
; > To: Rudy Eschauzier
> > Cc: Juan Manuel Parrilla Gutiérrez ;
> > "octave-dev@lists.sourceforge.net"
> > Sent: Thursday, September 29, 2011 4:10 PM
> > Subject: Re: [OctDev] Impulse invariance transform implementation
> >
> >
> > we can i
2011/9/29 Rudy Eschauzier :
>
> From: Carnë Draug
> To: Rudy Eschauzier
> Cc: Juan Manuel Parrilla Gutiérrez ;
> "octave-dev@lists.sourceforge.net"
> Sent: Thursday, September 29, 2011 4:10 PM
> Subject: Re: [OctDev] Impulse inva
From: Carnë Draug
To: Rudy Eschauzier
Cc: Juan Manuel Parrilla Gutiérrez ;
"octave-dev@lists.sourceforge.net"
Sent: Thursday, September 29, 2011 4:10 PM
Subject: Re: [OctDev] Impulse invariance transform implementation
we can implement this on
Hi Juan,
See attached file. Please note that although I feel the algorithms used for the
transform are sound, the implementation in Octave isn't the most efficient. The
intention was to write a reference implementation that proves the concept and
can serve as a basis for improvements.
Regards
Hi Ron,
I read here
https://mailman.cae.wisc.edu/pipermail/help-octave/2006-May/021065.html that
you implemented impinvar among other functions. You wanted to add them to
octave but 5 years later it seems that functions are not in. I'd like to use
your function impinvar and maybe the octave commun
Hi Rudy,
I see here: http://comments.gmane.org/gmane.comp.gnu.octave.sources/116 that
you implemented "impulse invariance transform" for octave.
I'd like to use your implementation with octave. Also the octave community
would be interested in adding your code.
Please, reply as "reply all" in this
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