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Mail Archives: geda-user/2019/03/25/12:49:35

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From: John Doty <jpd AT noqsi DOT com>
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Subject: Re: [geda-user] Netlist --> Linear state space model
Date: Mon, 25 Mar 2019 12:47:34 -0400
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The way I do it is to use gnetlist (or lepton-netlist) -g mathematica to =
make circuit equations in Mathematica. The function transferFunction =
from gEDAmath.nb  solves them for the transfer function. I use =
Mathematica=E2=80=99s StateSpaceModel  function, generally together with =
ToDiscreteTimeModel, to finish the job

Unfortunately, gEDAmath.nb was never in the gEDA distribution, so my =
(defunct) corporate website was the source. I should make this into a =
github project, but until I do, I can send you the file if you want it.

> On Mar 25, 2019, at 10:44 AM, Nicklas Karlsson =
(nicklas DOT karlsson17 AT gmail DOT com) [via geda-user AT delorie DOT com] =
<geda-user AT delorie DOT com> wrote:
>=20
> I think this is the most appropriate forum to ask. Do anybody know =
about a tool to Convert a netlist to a linear state space model?
>=20
> This form is commonly used in control theory. It may be of great use =
both for simulation and calculation of control parameters.
>=20
> In the thesis "Automatic generation of optimal concurrent error =
detection circuits for linear timeinvariant analog electronic systems" =
marked Eindhoven University Of Technology author Peters, A.W. mention he =
wrote some software in Octave for this purpose.
>=20
>=20
> Regards Nicklas Karlsson

John Doty              Noqsi Aerospace, Ltd.
jpd AT noqsi DOT com




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<html><head><meta http-equiv=3D"Content-Type" content=3D"text/html =
charset=3Dutf-8"></head><body style=3D"word-wrap: break-word; =
-webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" =
class=3D"">The way I do it is to use gnetlist (or lepton-netlist) -g =
mathematica to make circuit equations in Mathematica. The function =
transferFunction from gEDAmath.nb &nbsp;solves them for the transfer =
function. I use Mathematica=E2=80=99s&nbsp;StateSpaceModel =
&nbsp;function, generally together with&nbsp;ToDiscreteTimeModel, to =
finish the job<div class=3D""><br class=3D""></div><div =
class=3D"">Unfortunately, gEDAmath.nb was never in the gEDA =
distribution, so my (defunct) corporate website was the source. I should =
make this into a github project, but until I do, I can send you the file =
if you want it.</div><div class=3D""><br class=3D""><div><blockquote =
type=3D"cite" class=3D""><div class=3D"">On Mar 25, 2019, at 10:44 AM, =
Nicklas Karlsson (<a href=3D"mailto:nicklas DOT karlsson17 AT gmail DOT com" =
class=3D"">nicklas DOT karlsson17 AT gmail DOT com</a>) [via <a =
href=3D"mailto:geda-user AT delorie DOT com" =
class=3D"">geda-user AT delorie DOT com</a>] &lt;<a =
href=3D"mailto:geda-user AT delorie DOT com" =
class=3D"">geda-user AT delorie DOT com</a>&gt; wrote:</div><br =
class=3D"Apple-interchange-newline"><div class=3D""><div dir=3D"ltr" =
class=3D""><div dir=3D"ltr" class=3D""><div class=3D"">I think this is =
the most appropriate forum to ask. Do anybody know about a tool to =
Convert a netlist to a linear state space model?</div><div class=3D""><br =
class=3D""></div><div class=3D"">This form is commonly used in control =
theory. It may be of great use both for simulation and calculation of =
control parameters.</div><div class=3D""><br class=3D""></div><div =
class=3D"">In the thesis "Automatic generation of optimal concurrent =
error detection circuits for linear timeinvariant analog electronic =
systems" marked Eindhoven University Of Technology author Peters, A.W. =
mention he wrote some software in Octave for this purpose.</div><div =
class=3D""><br class=3D""></div><div class=3D""><br class=3D""></div><div =
class=3D"">Regards Nicklas Karlsson</div></div></div>
</div></blockquote></div><br class=3D""><div class=3D"">
<span class=3D"Apple-style-span" style=3D"border-collapse: separate; =
border-spacing: 0px; color: rgb(0, 0, 0); font-family: Helvetica; =
font-size: 12px; font-style: normal; font-variant-ligatures: normal; =
font-variant-caps: normal; font-variant-east-asian: normal; =
font-variant-position: normal; font-weight: normal; letter-spacing: =
normal; line-height: normal; text-indent: 0px; text-transform: none; =
orphans: 2; white-space: normal; widows: 2; word-spacing: 0px;"><div =
style=3D"word-wrap: break-word;" class=3D""><span =
class=3D"Apple-style-span" style=3D"border-collapse: separate; =
border-spacing: 0px; color: rgb(0, 0, 0); font-family: Helvetica; =
font-size: 12px; font-style: normal; font-variant-ligatures: normal; =
font-variant-caps: normal; font-variant-east-asian: normal; =
font-variant-position: normal; font-weight: normal; letter-spacing: =
normal; line-height: normal; text-indent: 0px; text-transform: none; =
orphans: 2; white-space: normal; widows: 2; word-spacing: 0px;"><p =
style=3D"margin: 0px;" class=3D""><font face=3D"Helvetica" size=3D"3" =
style=3D"font-style: normal; font-variant-caps: normal; font-weight: =
normal; font-size: 12px; line-height: normal; font-family: Helvetica;" =
class=3D"">John Doty<span class=3D"Apple-converted-space">&nbsp; &nbsp; =
&nbsp; &nbsp; &nbsp;<span =
class=3D"Apple-converted-space">&nbsp;</span><span =
class=3D"Apple-converted-tab">&nbsp; &nbsp;<span =
class=3D"Apple-converted-space">&nbsp;</span></span></span>Noqsi =
Aerospace, Ltd.</font></p><p style=3D"margin: 0px;" class=3D""><a =
href=3D"mailto:jpd AT noqsi DOT com" class=3D"">jpd AT noqsi DOT com</a></p><br =
class=3D"Apple-interchange-newline"></span></div></span><br =
class=3D"Apple-interchange-newline">
</div>
<br class=3D""></div></body></html>=

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