Spirent Sim3D Shows the Way Ahead for Realistic Multipath Simulation
29 Agosto 2019 - 01:30PM
Business Wire
Unique 3D modeling solution enables
true-to-life synthetic environment creation for more accurate
testing
Spirent Communications plc (LSE:SPT), the world leader in global
navigation satellite systems (GNSS) testing solutions, has
announced the availability of its innovative multipath simulation
solution, Spirent Sim3D. The 3D modeling solution enables the
testing of realistic multipath and obscuration effects on GNSS
signals in a true-to-life synthetic environment.
Historically, researchers and developers of GNSS receivers have
had to rely on statistical models and time-consuming live field
testing to study the effects of multipath on GNSS signals. With
Sim3D, the industry can now fully simulate real-life situations
with a level of control never before available for testing
multipath.
“Obscuration and multipath effects are one of the major
challenges faced by engineers trying to achieve accurate GNSS
positioning solutions,” said Spirent Managing Director of
Positioning, Martin Foulger. “ The accelerating development of
connected autonomous vehicles and other applications that rely on
accurate PNT means the need to test millimeter-accurate positioning
and sub-100 nanosecond time signal accuracy in a variety of
environments is growing rapidly. Sim3D is an important and timely
development.”
The unique system has been developed in partnership with OKTAL
Synthetic Environment. It offers the ability to simulate multipath
effects in a range of life-like geo-typical environments, using
different models to recreate locations such an urban highway, an
inner city or a forest. Geo-specific models of real locations can
also be commissioned, such as areas of major cities like San
Francisco.
A satellite signal bouncing off the surface of something in the
receiver’s environment, like a building, high-sided vehicle, trees,
or even the ground causes the signal travel marginally further,
arriving at the receiver slightly later than line-of-sight signals.
Without proper mitigation, this can cause a receiver to output an
inaccurate position.
During simulation with Sim3D, the GNSS signals interact with
fully customizable 3D environments, to simulate real life
applications in use, like a vehicle on a highway or a wearable
device on a pedestrian. This gives a level of testing detail,
control and realism never before available. Such realistic
multipath and obscuration simulation will add greater credibility
to GNSS testing and assurance that developed solutions are
efficiently optimized and tested for any desired environment.
“Using statistical models to calculate the likely arrival point
of GNSS signals in different environments has been acceptable while
humans have been in control of navigation,” explains Foulger. “But
as vehicles become increasingly autonomous, it’s vital to get a
more detailed understanding of the effects of obscuration and
multipath on a vehicle’s ability to generate an accurate
position.
“Sim3D’s ability to realistically simulate different
environments provides this greater accuracy and brings a host of
benefits to researchers and developers of autonomous vehicle
control systems. It will help to guide critical design decisions
like where to place the GNSS antenna on the vehicle; which type of
GNSS receiver to use; and when to hand off to other position
sensors if the GNSS signal becomes too degraded.”
Sim3D is intended for use by the automotive CAV industry,
chipset, handset and receiver manufacturers, and in aerospace,
military, mining and precision agricultural applications.
Spirent Sim3D will be demonstrated at ION GNSS+ 2019 in Miami,
Florida (September 16 – 20), and for more information, visit
https://www.spirent.com/products/sim3d.
About Spirent
Spirent Communications plc. (LSE: SPT) offers test, measurement,
analytics and assurance solutions for next-generation devices and
networks. The company provides products, services and information
for high-speed Ethernet, positioning and mobile network
infrastructure markets, with expanding focus on service assurance,
cybersecurity and 5G. Spirent is accelerating the transition of
connected devices, network equipment and applications from
development labs to the operational network, as it continues to
innovate toward fully-automated testing and autonomous service
assurance solutions.
For more information, please visit www.spirent.com and follow us
on LinkedIn, Twitter and Facebook.
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version on businesswire.com: https://www.businesswire.com/news/home/20190829005347/en/
MEDIA CONTACTS:
Americas: Brian Baumley BLB Communications T:
+1-609-759-0252 brianb@blbcomm.com
Asia Pacific: Janet Peng Spirent Communications T: +86
(10) 823 30055 (x160) janet.peng@spirent.com
Europe: Mark Price Spirent Communications T:
+44-7725-724834 mark.price@spirent.com
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