User Manual

- 55 -
3.4.5 Average wave processing
This image processing calculates the average reflected wave of the entire A-mode data in the scan
results, subtracts the calculated average wave from each A-mode data, and displays the processed
data. The average processing is effective to remove the constant horizontal strip noise appearing in the
scan result. (This processing removes the constant signal existing at the some depth like the reflected
wave from the far side of the wall. Consider this point in using this processing.) Perform the following
steps to use this processing.
(1) Press the 6 PRCS key.
The setting field of the PROC setting at the bottom line of the scan screen is video-inverted. Then
the image processing mode starts.
(2) Set AVG to the PROC by pressing the cursor keys ▲▼.
(3) To exit from the image processing mode, press the 6 PRCS key again.
The setting field of the PROC setting changes to the normal display. Then the image processing
mode finishes.
• The average processing removes the constant horizontal strip noise and signal. Therefore it
removes also the constant signal actually reflected from the object at the constant depth.
3.4.6 Peak processing
Peak processing deletes multiple reflected waves of surface wave processing results and
displays only the reflected waves from objects being probed (rebar etc.). Use this when it is difficult to
see the depth of the objects being probed due to multiple reflected waves.
Note that peak processing cannot be used for probing objects (e.g., cavities) that have a lower
relative permittivity than concrete.
Peak processing can be performed for the results of fixed surface wave processing (including
real-time automatic surface wave processing), manual surface wave processing (including real-time
manual surface wave processing), and deduction processing.
Procedure for reduction processing:
(1) Press the 6 PRCS key.
The inverted display is shown as the item for the PROC setting at the bottom of the screen
and operation switches to image processing.
(2) Set PEAK using the cursor keys ▲▼.
(3) Sel PEAK ‘s second field to one fo MAN , AVR , INT , or SUB by using the cursor
keys
. The peak processing is be performed for the relevant process results.
Notes