a couple of points:
1. Galileo is -not- a competitor to US gps. ( although some pundits are
trying to spin it that way.) I undersatnd that Galileo spec is frequency
compatible with GPS. Many gps reciever developers have been planning
dual systems, as part of an overall global GNSS (global navigation
satellite system) More satellite sources means higher resolution
positioning.
2. Ideally location software should be capable of "sensor fusion" using
any signal opportunistically to give a user app accurate coordinates.
e.g. wifi , Cell tower, digital TV timing signals, bluetooth beacons,
and even rfids. Over time radio receiver signal processing will be
software. I personally worked on a SDR (software defined radio) solution
for Kuband IP communications using FPGAs. Theres no reason to doubt that
we'll be able to use frequency agile software defined recievers to blend
sources into precise centimer resoulution realtime kinematic tracking of
our nifty mobile gadgets
In the meantime we need to hack and scrape coarse grain postioning
(2-20meter resoulution) out of any signal we can get. Thank goodness,
web2.0 hacker teams like Loki, Navizon and Bright Kite are on the case,
working hard to give users their own positions.
Cheers-
Mike
Mike Liebhold
Institute for the Future
iftf.org
Jeremy Irish wrote:
In some ways I wish the US would create some controversy so it could
re-invigorate Galileo. The EU seems to be increasingly disinterested in a
competing system and removing the SA feature from satellites just makes Galileo
less interesting. At least there's the Russian GLONASS system being retooled
and China's Compass system (which is still undefined).
I personally think that there should be a Local Positioning System technology
out there that uses triangulation. Although WiFi and Cell Tower positioning are
novel there's no way I see either idea being able to help me find a geocache or
any other specific point. There is interesting research in indoor navigation
but nothing solid has presented itself that I know of yet. Please prove me
wrong!
Jeremy
-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Tyler Bell
Sent: Wednesday, September 19, 2007 5:10 PM
To: [email protected]
Subject: Re: [Geowanking] So do we entirely believe this?
Here's a bit of topical background to the issue from El Reg for interested, uh,
'wankers....
http://www.theregister.co.uk/2007/07/18/drop_sa_say_satnav_lovers/
- - TB
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