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DIGITAL RADIO COMMUNICATION / RADAR Devices
Explaining Ultra Wide Band
Ultra Wide Band will either be the beginning of a new age of communication or the end of an old one, and probably both. UWB is true digital radio communication, a series of very short electrical pulses (billionths of a second) that exist not on any particular frequency, but on ALL frequencies simultaneously. It is just a blast of electrical noise.
The key to turning that noise into communication lies in the timing of the pulses that beat out a code. ...
(UWB technology was originally developed for the military and various U.S. and Soviet spy agencies as early as 1960).
... spread spectrum radio, .....operates today in every mobile phone. But where spread spectrum used just a few dozen frequencies and used them one at a time, UWB uses every frequency there is, and uses them all at the same time, which means the data-carrying capacity of UWB is enormous.
UWB products will probably begin to hit the market in the next 18 to 24 months .
In addition to radios, these products will include radar and electronic positioning devices.
DETECTING PEOPLE, OBJECTS
For soldiers entering a strange building, UWB radar can show literally where all the bodies are, right through walls, ceilings and floors.
As an electronic measuring device, UWB is accurate to within 10 centimeters much better than competing technologies like Global Positioning System satellites,
and UWB can be used indoors, while GPS cannot.
UWB definition ( wide radio frequency )
UWB : wide spectrum; low density
That means UWB devices can be co-located with GPS and PCS equipment.
UWB standard takes giant leap--May 13, 2005
Deep within the layered structure of the IEEE 802 standards body, a small, low-key task group has made a giant leap forward in its efforts to derive a wireless physical-layer standard that will combine low-power communications with precise locationing and high mobility. The result will enable a wide range of applications, from factory floor control, sensors and tracking to body-area networks.
Zigbee and UWB ( from the local to the global )
Press Releases http://www.commsdesign.com/
UWB facts http://www.multispectral.com/
The primary applications for UWB technology are radar, location sensing, and communications. UWB signals are generated using short, video-like pulses that are transmitted over a wide range of spectrum.
Good Explanation ; all the different frequencies
Active RFID ( Wi-Fi )
From the Newswire :
International Accord on UWB crucial
To thoroughly understand all the issues of concern, one would have to spend weeks reading many thousands of pages of history and technical analysis. In brief, however, the specific issues at hand involve
3. and land-based sensor network services
and the potential or perceived interference or degradation of their signals.
A Single Standard for UWB
In March, the U.S. Federal Communications Commission took a significant step toward breaking an industry deadlock over setting a single standard for a new wireless technology called ultrawideband, or UWB. While traditional radio technologies have transmitted and received analog signals only on specific frequencies, UWB uses inexpensive computing power to send short radio pulses across much of the radio spectrum. Because it does not use a single frequency, UWB offers several advantages, including the capacity to send large volumes of information quickly and the ability to share frequencies and resist interference. It is like breaking the cargo of a truck into loads small enough to be carried on bicycles that can weave through a traffic jam. The potential of the technology is to greatly increase the capacity of the radio spectrum.
Wireless developers plan to work together to meld Bluetooth, the short-range technology that links cellphones and cordless headsets, with ultrawideband, The Associated Press reported from New York
One major goal, according to the Bluetooth group, is to enable short-range wireless compatibility between today's Bluetooth-enabled devices and machines with UWB, which are not expected to hit the market until at least next year
D.C. Hospital gets UWB
Aug. 19, 2004Parco Wireless, a developer of an ultra-wideband RFID system for healthcare facilities, has sold its first commercial installation. In October, Parco will oversee the deployment of more than 20 readers and around 100 tags for patients and staff as well as tags for equipment throughout the emergency department of the Washington Hospital Center in Washington, D.C.
Parcos real-time location system uses tags and readers licensed from Multispectral Solutions, an ultra-wideband (UWB) specialist based in Germantown, Md., combined with Parcos own asset management software. The system allows hospitals and clinics to track the status and exact location of patients, staff and essential equipment.
Battery RFid Ultra-wide band (UWB) thank you Alan Trombetta
This system tracks small battery powered ID tags over a 30,000 square foot area and reports their position to within a foot!
No kidding, one foot. The implications for human tracking are very interesting. A large network of receivers could cover a city the same way PCS towers give us cell phone coverage. If people are required to carry tags that use this technology, it would be very easy to correlate the data with video images to see who isn't carrying their tag when out in public and who doesn't look like the tag's owner. And of course locate anybody instantly.
Coupled with biometric-based access points (kind of like border crossings) the system would be a tyrant's dream come true. If someone were out to enslave the world, this would be a big help. They don't have the biometric database, but wait and see how retinal scans and fingerprint scans become a common part of our new "homeland security".
GPS and cellular carrier networks ( diagram of how UWB works )
Many streaming Videos on the future of technology
Business Now http://www.businessnow.com
Tech Talk http://www.businessnow.com/website/article.asp?id=28
GPS plus phone and web connections
Location Tracking http://people.howstuffworks.com//location-tracking.htm
The Future is Wireless www.enn.ie/ffocus.html?code=9374919
The polymers have been developed to act as modulators. Modulators form the "bridge" between fibre-optic cables and existing electronic devices - computers, TVs, etc. They translate electrical information into data-packed beams of light.
Optic cables are currently not being used to their full potential because of the poor interface with electronic devices. Organic polymers developed by engineers at the University of Washington and the University of Southern California translate electric signals 10 times faster than current lithium based devices.
They claim these provide such an enormous bandwidth in which to fit information that a single chip measuring little more than a millionth of an inch could handle all a major company's telephone, computer, television and satellite traffic. Yet, crucially, the device requires less than a fraction of a volt of electricity to operate.