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  (Source: crazyengineers.com)
The new ground-based tech can pinpoint locations outdoors and indoors

While GPS struggles to find your exact location at times, a new positioning technology could step up and give a more accurate area both indoors and outdoors.

The new positioning technology is by Locata, and it uses ground-based equipment instead of satellites to send a radio signal over a certain area. This signal is reportedly a million times stronger than a GPS signal.

While GPS mainly gives outdoor locations, Locata's ground tech is tackling indoor locations such as huge shopping malls as well. Its receivers can be small enough to fit inside a cell phone, so if shoppers are lost in a large mall, they can use Locata on their smartphone to find a certain area.

When tested at the White Sands Missile Range in New Mexico, Locata worked to within 18 centimeters along any axis. GPS typically has location resolutions of a few meters. Locata's technology could bring the resolution as far down as 5 centimeters in the future, making location pinpoints even more precise.

Locata's signal is much stronger because solid objects like GPS signals don’t block it as easily. However, Locata could still use some help in urban settings with many buildings packed so closely together.

It is suggested that Locata's tech will not replace GPS, but rather, work with it to offer both satellite locations and ground-based locations for greater accuracy in different situations. For example, the Jigsaw Positioning System uses both Locata and GPS to guide the placement of drill rigs in Western Australia.

Source: New Scientist



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RE: how many centimeters?
By Locata-Nunz on 1/6/2013 3:27:48 AM , Rating: 2
Dear dnyank1.
I'm sorry for your loss, and I share your pain. If you care to look you'll find I lost family in NY in 911 too... and it will always hurt.

With respect, we do NOT spread FUD, but tell the unadulterated truth. Please take the time to either watch the video referenced elsewhere here, or do your own research within GPS industry publications. EVERY reference I made in the video is from someone that is a respected, independent authority. I just collated and presented the information, starting with the US Government's own Volpe Report of 2001 and ending with UK's Royal Academy of Engineers Report from 2011 (http://www.raeng.org.uk/news/publications/list/rep... There are dozens of other authoritative reports if you do the research. Alternatively, just browse the front covers of GPS World Magazine over the past few years (http://www.gpsworld.com/archives/) and see how many articles highlight the massive jamming and spoofing problems now faced by GPS-type systems. If this is FUD, then most of the professional industry is responsible. As I said, I'm just a messenger for the information the industry has been trying to report for YEARS.

Your other points:
(1) The truth today is the military are trying to save money wherever they can, so there is no largesse here. Our technology is important because warfighters operate in an environment where the enemy is nowadays EASILY jamming GPS signals in operational areas, and they need something else for development purposes that works when GPS is jammed (which is VERY often).
(2) Locata can be encrypted , which gives you another reason why it's valuable. Civilian GPS is not encrypted, and to change that will take many years of effort, completely new satellites, and leave a huge number of current GPS devices inoperable or needing upgrades. That would be great for the GPS industry, but presents a nightmare for handling encryption keys for civilian use. Just check out what the military have to do for their encryption keys and you'll see how difficult it would be for general use.

Finally, some inaccuracies in your understanding (sorry) of GPS technology:
- Military GPS is NOT more accurate because it is encrypted. It's secure because of that. The military signal at L2 is more accurate than the civilian signal because their CDMA code is chipped at 10Mhz instead of the 1MHz civilian chipping rate. This gives the military system a higher code resolution of ~15 meters vs the ~30 meters in civilian code solutions.
- I think I've addressed #3, #3A above, but as for B... (i) the aviation industry uses exactly the same signals as the civilians do; (ii) The FAA is strongly working towards APNT (Alternate Position, Navigation and Time) because, like the military, they know they have SERIOUS problems emerging with GPS jamming. Please read a recent important article on the problem from the April 2012 issue of GPS World Magazine (http://www.gpsworld.com/archives/) and (iii) mate... with your apparent level of GPS technical knowledge I would honestly avoid trying to explain GPS time to the co-founder and CEO of a company that has 98 granted patents on synchronization technology and daily runs wide-area Locata networks that synchronize to better than a billionth of a second without using atomic clocks. And which is technology the GPS industry is adopting all over the place. Just sayin'...

The most important point in any of this is there is no FUD. Just facts. And even if I wasn't here, the authorities quoted above would not have gone away. Go read the info from someone that is NOT me. You can't shoot all of them.


"We basically took a look at this situation and said, this is bullshit." -- Newegg Chief Legal Officer Lee Cheng's take on patent troll Soverain

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