Not complaining. Just looking for open source tools to do the analysis before I write them myself. I figured someone must have done this. Found it in ../tools as you said. Thanks. Plotting is the easy part, any number of tools to do that, analysis is harder.
I'm looking at your simulation software, thinking I could add a PID autotunner. Even using brute force search it could finish over night. Compared to the months it would take using real hardware. On Sat, Mar 22, 2014 at 1:00 PM, Tom Van Baak <[email protected]> wrote: > Hi Chris, > > I'm pretty sure John distributes complete source code to TimeLab as part of > the installation. > My source code is at www.leapsecond.com/tools > There are also many open source plotting tools available. > Not sure what you're complaining about, really. > > Please try using the GPSDO simulator and let's talk time & frequency instead > of open & closed operating systems. > > Here's an example of what you can do -- varying the pre-filter from 1 to 1000 > seconds. > First, using the cute little Adafruit "Ultimate GPS" MTK3339 board: > gpsim-22.gif > Second, using the fancy CNS-II M12+T box: gpsim-23.gif > Both with the same OCXO and same gpsim1 default P,I,D parameters. > > These plots would have taken weeks of data collection. Instead it took 20 > seconds with the simulator. > > /tvb > > ----- Original Message ----- > From: "Chris Albertson" <[email protected]> > To: "Tom Van Baak" <[email protected]>; "Discussion of precise time and > frequency measurement" <[email protected]> > Sent: Saturday, March 22, 2014 11:56 AM > Subject: Re: [time-nuts] GPSDO simulation tool > > > Yes I could run most any MS Windows software on my iMac. But running > it is not the point. Closed source software like this is just a > "magic black box" and you can't see how it works. > > The point is like this: Why build a GPSDO when you can simply buy a > Thunderbolt, apply power and go? The same answers apply to > software. You want to learn the issues involved, you want to modify it > or use it in a different environment. > > Especially the last part, different environment. I'd like to have my > GPSDO draw performance plots and some diagnostics on a little cell > phone size LCD screen. > > > _______________________________________________ > time-nuts mailing list -- [email protected] > To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. -- Chris Albertson Redondo Beach, California _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
