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Entries tagged "radio".

28th April 2010

I have been listening some recordings from Eben Moglen last days, now i remenber the words "Pratical Revolution".

I agree the fact that an Utopia like many we face today from socialism to capitalism, and more are just dreams, that tend to be polluted in its process, like power that get out control from those who said have the capabillity own it. so..

In my interest about learning/reading sort of human history, somethimes we used to forgot the role of technology in this way of looking for freedom, but as Monglen pointed, techonlogy it self, is ireversible, and our society depends on technologies more than hundres years ago.

The right to read, to think, to make reflexion about our enviroment is essencial freedom to humans understand, what we are, and what is around us, unfortunatelly diferents economies rise in diferents situations and now we are here facing this issues.

Technology is the point from wich must (i think), start changing how we acess, share and create So lets see technology not like something we just pay for it and use.

10th July 2010
I got a nanonote some moths ago, it is a copyleft device, well you can read more about in qi-hardware website. There are many ideas of posible uses with the device there is wikipedia, ogg player, some games and thre is open street maps. The last one is now accesible offline trought the nanonote and also is linked to a gps so you can now where you are. I saw that before? surelly yes but now in a copyleft device. If you want read more check the link bellow

GPS on the nanonote

23rd January 2011
~/mutt-micro-1000-21284-14666970874956765.html
As some of you already know may be others not, there is an upcoming
effort [1] about implementing a GPS Device for the nanonote, _but_ in a
free/libre way.

As was already proved before you can attach [2] a
commercial non-free GPS device and find your position on a nice map,
but the idea is go further, so we want implement a sofware/hardware
method for processing I/Q signals coming from a SiGE SE4162T GPS
Receiver IC.

So far i got some "raw" data [3], it is basically the  4-bit I/Q
(2-bit I and 2-bit Q) from SiGE chip arranged [6] continuouslly.

Now with help from Fabrizio Tapper from CTAE, this data is about to be
processed in order to verify that the PRN codes [5] from the satellites
on sky view [4] could be tracked. Of course any aditional
help is wellcome :-).


[1] http://en.qi-hardware.com/wiki/GPS_Free_Stack
[2] http://en.qi-hardware.com/wiki/GPS
[3] http://downloads.qi-hardware.com/people/kristianpaul/sige_01_06_11_22-43_GMT-5.out.tar.gz
[4] http://downloads.qi-hardware.com/people/kristianpaul/gpredict_01_06_11_22-43_GMT-5.png
[5] http://downloads.qi-hardware.com/people/kristianpaul/sige_01_06_11_22-43_GMT-5.PRN
[6] http://projects.qi-hardware.com/index.php/p/ben-gps-sdr/source/tree/master/notes/data%20process
Tags: gps, nanonote, qi, radio, sdr.
26th November 2011
~/blog/Untitled.html Has been a while since the last update in January, starting because for now
this implementation will no run in the nanonote :-) Not because it cant be do it,
just because i get more close to Milkymist platform so i feel more confident with it
(libre knowledge is my power) :-)

After read/skim some books/links [1][2] about GNSS/GPS and check Namuru proyect (thanks to Fabrizio)
i decided to port this namuru core to milkymist soc [3], this in beta stage and the current
effort  is around making and tunning the correlators to get a proper signal acquisition and tracking [4],
this is a software asisted task that will be acomplished by osgps, and thanks to Artyom from gnss-sdr [5] wich
ported this project to a simplified version [6], getting started will not be hard.

Still more code in osgps that could be ported to get a fix, but for now having and stable method to get
navigation data from the GPS satellites is the priority.

Thanks for reading !
And all qi-hardware/milkymist comunity for supporting me :-)


[1] http://en.qi-hardware.com/wiki/GPS_Free_Stack/Books
[2] http://en.qi-hardware.com/wiki/GPS_Free_Stack/Web_Links
[3] https://github.com/kristianpaul/milkymist/tree/gps-sdr-testing
[4] http://en.qi-hardware.com/wiki/GPS_Free_Stack/Notes_About_Namuru
[5] http://gnss-sdr.ru
[6] http://code.google.com/p/gnsssdr/source/browse/#svn/trunk/OSGPS_MOD
Tags: gnss, gps, milkymist, osgps, qi, radio, sdr.

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