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Posts: 1,994 | Thanked: 3,342 times | Joined on Jun 2010 @ N900: Battery low. N950: torx 4 re-used once and fine; SIM port torn apart
#7
Quick reply...
It's too early to thank me yet. For example:
1. I haven't yet found out how to put a localhost Assisted-GPS server on N900, so that the benefits of quick GPS lock would be separated from having to connect to Internet. I am still not sure whether it is necessary at all.
You see, if A-GPS gives all the information necessary to N900, and N900 stores it without forgetting, then this data should last for at least a week of quick offline GPS lock - when you will need to get fresh data. Unless there is a bug erasing the ephemeris data, offline-A-GPS server will not help much - unless it provides better data than supl.google.com.
And unless I am mistaken, you cannot get the whole year of future satellite orbits in advance - because the manoeuvres of satellites are unpredictable like that.
Still, if you are concerned about being dependent on somebody's else servers for information, you can read about Secure User Plane Location of Open Mobile Alliance and Open Source GNSS Reference Server for Assisted-Global Navigation Satellite Systems.
And International GNSS Service provides precise satellite orbits and clocks. Also, Real-time Service...
I would also be interested in observing the past data for satellite orbits and checking whether it would be possible to calculate future ephemeris based on the past-and-known ephemeris. Surely, the satellites are predictable enough that such a large database of ultra-precise orbits can be extrapolated to predict their orbits a month, or a year, later?
2. The recaller widget has yet to be replaced with a shortcut-to-bash-script. I have troubles with gst-launch and pipelines; surely, a simple matter, but still vexing, nevertheless.
3. I haven't even attempted to compile Fennec 20 XUL for CSSU Testing non-Thumb. I am grateful for Fennec 17. And I am glad to see activities in other directions, be it Fennec for Thumb, or HTML-based browser.
4. I have troubles persuading QML interface of Modrana to use night-theme-colours.
5. My signature has not been updated for a long time.
Best wishes.
And please, don't start a who-has-more-thanks war. I am afraid to count the ratio of the received thanks to my posts each time I visit this site. Maybe, I should post something in off-topic, as a distraction... It's a no-thanks land, after all.
And sarcasm is a form of joke, even if it is difficult to recognise at first.

Last edited by Wikiwide; 2013-04-15 at 14:59.
 

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