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information on coverage of your investigation area.
Positioning
The antenna array must be positioned with a high level of accuracy throughout the survey. A
precise control of the geometry is an absolute prerequisite to make the resulting 3D radar picture
correct and reliable. Centimetre accuracy is needed over the whole investigation site. The MIRA
HDR system can be positioned by using an RTK GPS system and with a Total station solution
(in the near future). The system can be used without a base station if a suitable rover unit is
used and a correction subscription service is available.
The positioning system needs to export the positioning data in NMEA 0183 GGA format for the
GPS option, so that the MIRAsoft HDR data acquisition software can record it and assign it
correctly to the measured GPR swaths.
The GPS antenna can be connected to Guideline Geo carrier solutions or can be mounted on
the survey vehicle:
Note: The placement and recording of the GPS antenna or Total Station prism’s position must
be thorough; this is described in the
MIRAsoft HDR User Guide
.
The best choice of positioning method will depend upon the conditions at the investigation site.
Summary of Contents for MALA MIRA HDR
Page 1: ...MAL MIRA HDR User Guide...
