ImpulseRadar
CrossOver® User Manual V1.4
Page 16 (31)
If the radargram does not fit on the screen, scrolling may be done with a 3-finger gesture, dragging the
fingers up and down on the screen, will scroll the radargram.
Other buttons provide functionality for controlling the collection of data, including Start, Halt/Resume
and Stop. Pressing the Halt button temporarily pauses data collection, whilst pressing the same button
again, allows data collection to be resumed.
Restoring missed traces
During data acquisition and the transfer of radar data from the antenna to the Android device, some
of the radar traces may be missed. This is typically due to a weak or interrupted Wi-Fi link. For example,
when working in areas with high levels of RF disturbance, or when the data acquisition device is moved
too far from the antenna.
However, since all radar data is saved to the antenna’s internal microSD card, any missed traces can
easily be restored at the end of each profile when the stop button is pressed. Should this occur, a
message will be displayed on-screen, as shown in Figure 14 below.
Note:
it is essential that the data acquisition unit and the antenna are near to each other during this
process. Otherwise, the restoration process could take considerably longer.
Figure 16
Data recovery when the acquisition is stopped
Projects
From the start screen, you may select either a ‘One-Line Project’ or ‘Multi-Line Project’. As the names
imply, this gives the option of collecting projects with either single or multi-line profiles. Regardless of
project type, a *.cor file (GPS coordinates) will be saved alongside the GPR data if the internal GPS can
lock onto suitable satellites.
Multi-line project
Three types of multi-line projects are available as follows:
•
Reference Line (RL)
•
Dual View (DV)
•
GPS
