Showing posts with label DARPA. Show all posts
Showing posts with label DARPA. Show all posts

Monday, April 15, 2013

DARPA is developing a navigation chip GPS technology improves

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The technology GPS navigation is the most used tool in the world. It has changed the way we travel and saved us a lot of problems, but not perfect. A GPS signal can be interrupted easily.Simply enter a tunnel for the GPS or even miss some nearby outdoor signal can cause interference. Since global positioning system (GPS for short) was designed for use at military level, the "constraints" that presents can become a big problem.
To solve the problem, several DARPA researchers take time working on a new positioning technology amounts to a kind of GPS enhanced and more powerful. The new navigation chip is named Timu.
"To go from point A to point B accurately we need three things: orientation, acceleration, and time," according to DARPA says. This new chip can be integrated into devices that have sensors to measure these three things.
The Timu chip, which is still a prototype, is extremely small as you can see in the image and is composed of several layers of silica, plus a few sensors of course.
Do not know whether this technology will be available to the general public or will be used exclusively for the military.

Sunday, February 10, 2013

U.S. plans a super-public wireless network throughout the country, free and ultra fast 20Mb

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In U.S. is planning something which could be the next logical evolutionary step in Internet access: WiFi network that would operate nationally regardless of the place where you are, free and also reaching speeds that would normally only find on ADSL networks and fiber optics.
Apparently the idea has come from the same U.S. government from the Federal Communications Commission , the agency charged with regulating telecommunications in the country and based on installing a giant Wi-Fi network covering the whole country.
The direct benefits are many facing the city because it would be an effective way to provide universal Internet access literally. No matter what level you have economic or secluded place where you live, you could always have access to this network.
On the opposite side are also problems. The first is the logical opposition of the leading providers of Internet access in the country that would like their clientele would disappear overnight.
The second point (theoretically) negative is to put the system in place would have to use part of the wave frequencies currently occupied by television signals (some will say that this is an extra edge). Moreover, the TV as we know it seems destined to disappear. Perhaps a future boost to television programs broadcast exclusively over the Internet.
We talked to do not much of tec.nologia.com networks to 100Gbps with a range of 200km action designed by DARPA, so the idea would not be too far from reality. The big question that will surely be doing that if the idea is eventually exported outside the U.S., especially if you live in countries where regulatory agencies seem more concerned to maintain the economic benefits of the big phone companies.

Friday, December 21, 2012

LS3, the robot DARPA charge

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How many times have partnered to DARPA with robotics ? Many no doubt will do so again. In September, the network appeared a kind of mule robot developed by that agency and which is intended to carry heavy things. Obviously the idea behind it is to assist the troops on the battlefield avoiding them having to carry the heavy load.
This robot, known as LS3, has been much improved lately, and they have integrated functions for voice commands, also serves for night operations and even has GPS navigation.
LS3 is able to understand commands like "forward", "stop" and the like to proceed to act as ordered. In the video below we can also see that it has different speeds and besides that the robot is able to stand if you fall and continue his march normally.

Tuesday, August 14, 2012

NASA and the Pentagon try a craft six times faster than sound

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The unmanned aircraft X-51A WaveRider experimental, a hypersonic aircraft capable of flying over the Pacific Ocean some 5,793 kilometers per hour, was tested by the Pentagon today on a flight "key" development of its technology, a source confirmed to Efe Department of Defense.
From a hangar at Edwards Air Force U.S. in the Mojave Desert (California), a team of aerospace engineers tuned the device, which could cover the distance between New York and London in less than an hour.
The project, developed by the U.S. Space Agency (NASA) and the Research Projects Agency Defense Advanced U.S. (DARPA), was tested by anchoring the X-51A WaveRider the wing of an old B-52 bomber.
The X-51A WaveRider should have flown at hypersonic speed for 300 seconds to dive later in the Pacific Ocean.

Although the same sources gave no information on the results, it was successful, the ship should have been destroyed during testing, making it impossible to recover, but engineers could use all the data recorded during the flight for technology development hypersonic military uses.
The test flight X-51A was the third experiment a program that began in 2004.
WaveRider's first, built by Boeing, was tested in May 2010 to 3500 kilometers per hour for 143 seconds before a glitch put an end to the test before time, and the second, who was executed in June 2011 and ended earlier than expected but it did create facts.
The Air Force plans to develop and use technology to move hypersonic missiles or aircraft anywhere in the world in minutes instead of hours, in order not to let the enemy reaction time.
In addition to speed, hypersonic aircraft will fly at high altitudes out of reach of enemy fire or a missile.
NASA and the Pentagon is funding three national centers in the country to study hypersonic flight.
The WaveRider program will cost $140 million as estimated by the site specialized in military development, Globalsecurity.com.

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