Re: GSoC sisotool

[Doug Stewart]

On Sat, Apr 5, 2014 at 7:54 AM, Doug Stewart <address@hidden> wrote:

On Sat, Apr 5, 2014 at 1:27 AM, Santiago León <address@hidden> wrote:

2014-04-04 6:52 GMT-06:00 Doug Stewart <address@hidden>:

On Fri, Apr 4, 2014 at 8:03 AM, Santiago León <address@hidden> wrote:

Hello, I recompiled Octave with the Qt backend (the gui branch) and the example provided by Michael is working really great, I suppose this are very good news because I was concerned if the ui functions were developed enough to make the sisotool. I will be learning the ui functions that you sent me in the mail and will try to do what I had before with them.

How could I recompile octave without compiling everything again? because so far each compile has  taken almost 2 hours to complete I was hoping to make this faster.

For what we are doing you don't need to recompile any more.

 I would like to start by making a "uibode2fgm.m"

 ie use the bode2f that I gave you, and using a panel, and menus, make a stand alone bode that plots the pole and zeroes and allows one to grab and move the open loop poles, we can start with just real poles. We should also display the "gain margin {GM} and phase margin {PM}" in little display boxes on the screen.

What do you think ? Is this a good starting point?

Doug

--

DAS

I think is a good starting point, I will work on it, I just have to learn about GM and PM because they weren't taught to me in class,  I will keep you updated.

GM PM are already calculated just display them.

--

DAS

Gain Margin:

additional gain that makes the 

system on the verge of instability.

Phase Margin:

additional phase 

lag

that 

makes the system on the verge of 

instability

see

http://wolfweb.unr.edu/~fadali/ee370/PM_GM.pdf

--

DAS