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Ascension
Offers Dramatic New Noise-Reduction
Software for its Trackers:
NOISE X
BURLINGTON,
VERMONT; December 14, 2004:
Ascension Technology has developed
a landmark “noise-reduction”
software program, Noise
X ™, for its
RS232 serial and ISA-based
trackers -- Flock of Birds,
miniBIRD, Nest of Birds, pcBIRD,
and MotionStar Wired. It accomplishes
this in a new utility program
that automatically measures
interfering frequencies present
in a tracker’s magnetic field,
and then determining the tracker’s
best operating frequency to
overcome jitter. As a result,
Ascension trackers now work
better in noisy electromagnetic
environments with a dramatic
reduction in environmental
noise.
Prior to the new Noise
X software development,
any device located near a
tracker that generated signals
in the frequency band of 0-3KHz
-- power lines, motors, pumps,
elevators, and computers --
caused measurement jitter.
Filtering of data reduces
jitter but exacts a dynamic
performance penalty. Noise
X makes Ascension trackers
not only the most metal tolerant,
but now also the quietest
magnetic trackers in the world
today.
According to Ascension president,
Ernest Blood, “The position
and orientation outputs of
both AC and DC trackers have
a certain amount of jitter
in them. Until now, however,
the only way to reduce this
jitter was by increasing the
amount of filtering on the
outputs. Increasing the filtering
always leads to increased
lag in the measurement. As
users will soon see, we’ve
now have a breakthrough improvement
in DC magnetic tracking that
decreases jitter without increasing
lag.”
The Noise X software
will be integrated in the
production of all new Ascension
RS232 and ISA-based trackers.
Customers of existing trackers
can download the software
and directions for its use
from Ascension’s ftp site
at ftp://ftp.ascension-tech.com/PRODUCTS/NOISE_X.exe.
Ascension Technology Corporation,
based in Burlington, Vermont,
USA, is a world leader in
magnetic, optical and inertial
motion tracking solutions
for 3D computer graphics applications
in animation, biomechanics,
simulation, virtual reality,
medicine and military targeting
systems. More information
about Ascension trackers is
available at www.ascension-tech.com
or by calling 802-893-6657.
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