MALA Easy Locator HDR, Руководство пользователя

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Press the Setting button to access the settings menu.
See the Setting Menu section for more information on
the use of this option.
The Fullscreen button toggles the display to full-screen
mode where the menu and status information is hidden
and the entire display is used to display the GPR profile.
Note: Press the push-turn knob
1
again returns the dis-
play to the default with the menu included.
The Background removal filter button is used to
remove horizontal lines/reflections caused by noise 2
from the GPR profile. By rotating the push-turn knob 3
various levels of background removal 4 can be applied.
The affect of the filtering can be noticed immediately and
the level gradually adjusted to create the clearest and
most interpretable image possible.
1 The push-turn knob is fitted to MALÅ monitors and acts in a similar way to a computer mouse allowing
the user to navigate menus and update data. Rotating the knob either allows sequential scrolling
through menu options to make a menu selection or changes selected parameter values. Pressing the
knob either executes the currently selected menu option or sets the value of the selected parameter.
2 Typical GPR reflection profiles contain noise and unwanted reflections that are produced by antenna
"ringing", differences in the coupling of energy with the ground, multiple reflections that occur between
the antenna and the ground surface and system and background "noise".
3
The push-turn knob is fitted to MALÅ monitors and acts in a similar way to a computer mouse allowing
the user to navigate menus and update data. Rotating the knob either allows sequential scrolling
through menu options to make a menu selection or changes selected parameter values. Pressing the
knob either executes the currently selected menu option or sets the value of the selected parameter.
4 Background removal is used to remove horizontal and nearly horizontal features in the radargram by
subtracting a calculated mean trace from all traces, sample by sample. It can be useful for removing
the direct air wave (first arrival) or ringing (due to poor ground conditions) from the data. Care must be
taken in this process not to remove real linear features from the data.