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Hybrid RTK with DPOS
Hybrid RTK with DPOS
Hybrid RTK with DPOS
When a GNSS RTK base station
is started by assuming an
autonomous position, it is
necessary and good practice
to later adjust and correct
the coordinates with a GNSS
solution referenced from known
coordinates. J-Field, has the
ability to adjust the base station
coordinates and associated
RTK points surveyed with DPOS
(Javad’s Data Online Processing
Service). Your raw GNSS base
station data is sent to the DPOS
server from J-Field to be processed with CORS (Continuously
Operating Reference Station) data. DPOS then sends the
adjusted coordinate back to J-Field and J-Field applies the
adjustment to the base and rover coordinates.
Now with the introduction of
Hybrid RTK
in
J-Field 2.0
, raw
data files from the rover can also be post-processed with
DPOS. Your local base station data can be used to post-
process base to rover vectors; serving as an additional check
for the RTK solutions and as method to obtain accurate
solutions in areas where RTK corrections are lost. Rover
points with raw GNSS files can also now be post-processed
with CORS data.
Recording Raw GNSS Data
Base station data is automatically recorded when a base
station is started with
Base/Rover Setup
. After done surveying
connect to base in
Base/Rover Setup
and choose Stop Base.
You will be prompted with several options. Choose
Stop &
Download
so that the base data is downloaded into J-Field
and can later be processed with DPOS.
Base/Rover Setup
- Prompt to stop the base and download
data
You will be prompted with several options. Choose
Stop &
Download
so that the base data is downloaded into J-Field
and can later be processed with DPOS.
Rover GNSS data is recorded with points when this option is
enabled in the What To Record settings.
What To Record
screen - Recording of GNSS Data enabled
Raw data for rover points can also be saved with the A
ctivate
Post-Processing
option found in the
Action Setup
screen.
Action Setup
screen -
Activate Post-Processing option after
5
min
When this option is enabled, the
(APP) button
will be display how many epochs of raw data have been
recorded and how many are required in the Collect and
Stake Action screens. Once the required number of epochs
have been met the button changes to display
.
Then once
Stop
is tapped the
PP Options
button is displayed.
Collect Action
screen displaying the
PP Options
button.
Tapping this button presents the options to save the raw
data for post-processing.
Collect Action
screen displaying the prompt to save raw data.
