Joel van Cranenbroeck's Blog (4)

FROM BASE STATION TO GNSS NETWORK ... HOW DEPENDING ARE YOU ON POSITIONING INFRASTRUCTURES ?

Most of the GNSS Network RTK projects have been developed by the economical justification that an active geodetic network would reduce the cost of maintaining a traditional geodetic network where the maintenance of the benchmarks and the control survey were a significant part of the ownerís budget.…

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Submitted by Joel van Cranenbroeck on February 2, 2018 at 11:52am — Comment On This...

UNCERTAINTY ON SURFACE/VOLUME CALCULATIONS

When I started my career, I have been attracted by one (of many) question : how accurate is the surface/volume calculations knowing the uncertainties of the points that define these geometrical figures. I really wanted to know in term of standard deviation what would be the "end results".

The solution was to propagate the variances (standard deviation squared) into the functional model (the…

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Submitted by Joel van Cranenbroeck on January 29, 2018 at 9:38am — 2 Comments

SOFTWARE FREE BUBBLE GNSS ROVER RTK

Good news for all of you who are using a GNSS RTK without the fancy tilt meter and IMU onboard ! 

You can turn your today GNSS receiver to do the "free bubble style" by mixing up 2 technologies that popped up last year.

The first one is about software receiver as we learnt we can feed the digital signal…

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Submitted by Joel van Cranenbroeck on January 27, 2018 at 11:38am — Comment On This...

THE DEAD END OF THE TRAVERSE METHOD

One of the typical survey method for determining station's points and survey details has been the traverse method. There have been considerable discussions on the way to "adjust" angles and distances and lot of rules of thumb while rigorous Least Squares Adjustment softwares are available anywhere.

I would say "too much" talks and controversial exchanges for a method that is simply not appropriated anymore considering modern instruments. Long traverses (geodetic) have been…

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Submitted by Joel van Cranenbroeck on January 27, 2018 at 11:29am — Comment On This...

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