TECHNICAL PUBLICATION
TRANSFORMING THE WAY THE WORLD WORKS
GNSS/INS Performance
The following results are from an analysis of
a 13 km suburban environment drive with the
system running in GNSS/INS(RTK), which
starts near the base station and ranges out
to about 9 km away from the base station. A
significant improvement is seen in the 95%
error ellipses of the horizontal positioning,
shown for ProPoint in blue. This is the difference
between the real-time GNSS/INS positions
and a high-accuracy, post-processed truth
trajectory using an Applanix POSLV system
(high end IMU system).
Similar improvements are seen in the vertical
performance. Looking at the Cumulative
Distribution Function plot of the error in the
height component clear improvements are seen.
With the previous generation GNSS/INS engine
95% of the heights (the 95 percentile) fell within
78mm of truth, now with the Trimble ProPoint
Engine 95% of the heights fall within 23mm of
truth.
CONCLUSIONS
Trimble's ProPoint Engine is an investment in the future, ready to fuse present and future GNSS
measurements with Inertial and sensor data to deliver premium performance in the toughest of
environments. When accuracy, availability and integrity are key requirements for your autonomous
application then ProPoint is the ideal choice.
TRIMBLE
Email: sales-intech@trimble.com
Website: oemgnss.trimble.com
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