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Ultra-Wide band Technology transmits digital data over a wide
spectrum of frequency bands with very low power. It can also transmit
data at very high rates, key for wireless local area network applications.
Within the power limit allowed under current FCC regulations, Ultra
Wideband can not only carry huge amounts of data over a short distance
at very low power, but also has the ability to carry signals through
doors and other obstacles that tend to reflect signals at more limited
bandwidths and a higher power. At higher power levels, UWB signals
can travel to significantly greater ranges. Instead of traditional
sine waves, ultra wideband radio broadcasts digital pulses that
are timed very precisely on a signal across a very wide spectrum
at the same time. Transmitter and receiver must be coordinated to
send and receive pulses with an accuracy of trillionths of a second.
Ultra wideband can also be used for very high- resolution radars
and precision (sub-centimeter) radio location systems.
Compared
with other technologies UWB technology allows an unprecedented amount
of high-density bandwidth applications. UWB also allows this bandwidth
without requiring assignment of a new frequency bandwidth, essentially
"creating" a new band of spectrum in the noise floor. Finally, UWB
has the potential to include added "sensory" information to radios,
using the timing of pulses to include position and environmental
awareness data through the communications network to very great
accuracy.
Some of the applications of UWB Technology include:
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Radar Applications: UWB
technology has been used for some time in Ground Penetrating
Radar (GPR) applications and is now being developed for new
types of imaging systems that would enable police, fire, and
rescue personnel to locate persons hidden behind a wall or under
debris in crises or rescue situations. UWB imaging devices also
could be used to improve the safety of the construction and
home repair industries by locating steel reinforcement bars
(i.e., re-bar) in concrete, or wall studs, electrical wiring
and pipes hidden inside walls. UWB devices could improve automotive
safety with collision avoidance systems and air bag proximity
measurement for safe deployment. Potential medical uses include
the development of a mattress-installed breathing monitor to
guard against Sudden Infant Death Syndrome and heart monitors
that measure the heart's actual contractions. Some potential
home safety uses include intrusion detection systems that are
less susceptible to false alarms, and space heaters that turn
themselves off when a child comes nearby.
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Communications Applications: UWB devices can be used for
a variety of communications applications involving the transmission
of very high data rates over short distances without suffering
the effects of multi-path interference. (Multipath is the propagation
phenomenon that results in signals reaching the receiving antenna
by two or more paths, usually due to reflections of the transmitted
signal. The ability to time-gate the receiver would allow it
to ignore signals arriving outside a prescribed time interval,
such as signals due to multipath reflections.)
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Positioning Applications: UWB devices can be used to measure
both distance and position. UWB positioning systems could provide
real time indoor and outdoor precision tracking for many applications.
Some potential uses include locator beacons for emergency services
and mobile inventory, personnel and asset tracking for increased
safety and security, and precision navigation capabilities for
vehicles and industrial and agricultural equipment.
White
papers on our products and technologies are available upon request.
E-mail us at innovation@bluetronix.net
or call 440.247.3434.
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