Below you will find brief information for GPR software GPRSoft. This software is a powerful tool for the analysis and post-processing of ground penetrating radar data. You can import data files, analyze them, process them and finally save or print them.
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Projects
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The project menu deals with operations on the group of files creating a project/survey/3D grid survey. By keeping together radar files,notes, GPS data, images,notes etc. in a straightforward tree-structured manner, you get a project organized and ready for interpretation and presentation in no time. However in order to get the most of the this feature in the GPRSoft™ take some time to get acquainted with the approach to creating, editing and using the project structure to your benefit.
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Project bar
Inside this bar, by default pinned to the left of your workspace, you will find all of your project groups.
The project group is named same as the project and you can add or delete groups from the list by rightclicking on the free space inside the bar and checking the option from the context menu.
Project name
Project name button shows the name of the project your working with and by pressing the double up/down arrow you can roll-up or down the projects tree structure.
Project tree structure
This area shows the actual tree structure of your project. It is a fair duplicate of the tree and file structure of the projects data that will be built on your hard drive, saved in one top folder named depending on the choice you've made while creating the project. At first the project folders are empty and you will go through a series of adding items to their corresponding folders in the structure. All of the adding, creating and removing of the files can be done by right-clicking above the folder or file name in the structure, that you wish to change, which will pop-up the context menu:
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Certain commands will only be available for some of the folders, and some of the folders will automatically accept the files created (layers, reports, PDF) for the data found in the Data folder.
The folder structure is as follows:
Data folder
This folders is to be used for storing the GPR files and macros to be used on those same files. This is the only folder in the structure that you
have to
fill.
After adding the files and pressing the + sign besides the folder icon you will have quick access to all of the files in the project by simply clicking on them.
GE output
GE output folder is used as a container for any *.kmz files used to export your data to Google Earth.
GPS
All GPS data concerning the set of files in the Data folder goes here.
Images
If you've done some photographing while on the survey - either of the site, certain surface anomaly or you and the equipment - add them into this folder. Also any other graphic appendix is best placed here. The reason for that is that if you double click on any of the image files you've placed here they will be viewable in a pop-up window inside the GPRSoft™ at once.
Layers
Keep layer files (*.gprsl) in this folder. You can add them if you have previously made them, or consequently save them in this folder if creating them from the files in the Data folder (the Save layer location will by default show the location of this folder in the dialogue).
Notes
Any notes done while doing the survey or while doing the processing can be added or created (press create
New to open your default *.txt processor). The notes are *.txt file so they can be reopened in different programs as well.
You can drop any PDF concerning your survey here, but the main idea is that if you use the internal PDF distiller feature in the GPRSoft™ for the files located in the Data folder, the default output location in the
PDF tool dialogue will be this folder. Also if double clicked they will be opened in a pop-up inside the
GPRSoft™ environment.
Reports
Report files from Layer tools get to be placed into this folder for easy access. As with the layers folder
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Geoscanners AB they can be added if done before creating the project, but will also be saved here by default setting if created for the files in the Data folder (the Save report location will by default show the location of this folder in the dialogue).
Settings menu
This toolbar has all the settings that control the way your software opens and displays the data files every time it is accessed. Here you also find the button to access the file header of your profile if such is available in the active profile.
General settings
Press this button to invoke the general settings window .
Rulers settings
needs.
File header
Press this icon to open the window containing all the information it is possible to retrieve from your data
file. This includes, file name, location, size and many more parameters. See
the appropriate
to learn more about this feature.
section
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General Settings
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The general settings dialog window has three different tabs that allow you to set up specific settings of your software which we have grouped according to their common functionality.
The first tab of the general settings window controls the default values for file extensions, amount of traces in each B-Scan, amounts of undo/redo steps and many more.
Language
Dropdown list of available interface languages.
If there is no translation to your language and you would like to contribute the translation, please contact the support team at [email protected].
Default extension
Sets the default extension in the explorer browser when a new data file is going to be loaded into GPRSoft.
Select from this drop down menu the type of files you want to open more often. This is done so you don't need to browse through all the available extensions every time you need to open a file that is not set as the default for the software.
FFT X-Scale Options
Select the FFT X-scale distribution, linear or logarithmic one. The default is linear, but many times it is
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Geoscanners AB much better to use logarithmic frequency scale to find out larger changes and ignore the smaller ones.
Display Mode
Select with these radio buttons the way you want the FFT to be presented, in average mode or using peak hold. In average mode the FFT presented is the average of the FFT from several traces. In peak hold mode the presented FFT is a collection of all maximum values of the FFT from all the loaded into the FFT window traces.
FFT Size
Because ground penetrating radar files can be extremely big we have two different modes of computing the FFT for them. Using the fast option only certain amount of traces will be used for computing the FFT.
The full option on the other hand will take into consideration all the available traces for computing the
FFT of the data file. It is obvious that using the full FFT option will give the best results, but at the same time it will take longer time to process.
Undo/Redo Depth
GPRSoft stores all the modified data in separate files in order to be able to retrieve it very quickly if it is necessary to make comparisons. This means every time a processing is applied to the data a separate file is created to remember all the changes and that subsequently takes some memory from the computer resources. If there are many files loaded concurrently and several steps of processing are carried on, then the amount of memory in the host computer may fail to store all of it.
In this field it is possible to enter the depth of the undo and redo steps or to put it in other words, how much memory is allowed to be taken for each loaded file. This amount can be set lower if too many files are required to be open at the same time, or alternatively it can be set higher if only one or two files are loaded concurrently.
It is important to understand that this setting is up to the way you as the end user are accustomed to work.
If many files are loaded at once then lower values might be more appropriated and vice versa.
Surface Correction
This box allows you to choose between automatic Surface correction or some start time specified by you.
The automatic surface correction will attempt to find the time zero for each and every trace in your data file based on a set of parameters. This can sometimes result in a "jagged" upper part of the B-Scan, but more often than not it will render a better result than the start time mode of the automatic surface correction.
The start time surface correction is completely based on your decision on where exactly the time zero should be. Please understand that for air launched antennas this can be wrong since vertical antenna movements will cause the starting point to go up and down. For applications like concrete assessment with ground coupled antennas this might be a better approach though.
DZT Saving options
The data in GSSI dzt file format is organized strictly in traces containing a power of two amount of samples. For that reason it is necessary to specify the way you want the non power of two files will be
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The DZT is proprietary file format from GSSI. The DZT file format accepts only a power of two number of samples and therefore when translating files from other formats one must take care of accommodating the amount of samples to a power of two.
Select the truncate option if you want the amount of samples to be cut down until they fit a power of two number of samples. Select the padding option if you want the amount of samples filled up with zeroes until a power of two number of samples is reached.
Screen dump
Option to decide which area of the screen is going to be used for the Screen dump function.
Action buttons
Apply all the changes done in any of the tabs without making them final (you can watch on the screen the effects of the new settings).
OK confirms the changes done and exits this dialogue window
Cancel the changes and exit this dialogue window.
Waterfall Settings window
This tab of the general settings window controls the way the B-Scan or waterfall diagram should look like.
For B-Scan type of waterfall diagram there is not many options to set, but for the wiggle trace one
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Geoscanners AB requires to have a better control. All the control you need for the wiggle trace can be found here.
Output View
Select with the aid of the radio button the default kind of B-Scan display when opening files.
select to have A and B-Scan, B-Scan only or Wiggle Trace.
You can
Trace Settings
Select the default colors for the background and the line in the A-Scan window.
Markers
In this section you can select to show the markers and the way they are going to be presented (full trace length or shorter). You can also change the color of the marker to suite better the chosen color palette. If you bought the GPRSoft®PRO version of the software there are some additional options that can be found
Wiggle Trace Section
In this section all the settings pertaining the wiggle trace can be customized. The result of your settings can be viewed immediately by pressing the apply button.
Wiggle Amplitude
Enter in this field the amount of pixels the full swing of the signal can occupy.
Wiggle Separation
Enter the separation in pixels between the centers of two consecutive wiggles.
Chop Mode
In this section one selects the type of fill appropriated for the collected data. It is possible to choose between positive or negative fill. As before, by pressing the apply button one can see immediately the effects of the changes.
The fill percentage indicates the amount of the full amplitude that will be filled up with the polygon.
Action buttons
Apply all the changes done in any of the tabs without making them final (you can watch on the screen the effects of the new settings).
OK confirms the changes done and exits this dialogue window
Cancel the changes and exit this dialogue window.
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View Settings Window
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This tab of the general settings provides all the control necessary to adjust the way the data is presented to your particular needs and preferences.
Traces/Distance
Select the type of horizontal control you want to use to decide how much data is going to be loaded in the viewing area of the B-Scan. It can be selected between traces/window or alternatively units of
distance/window. When using the units of distance/window the selected type of measuring system will
define the units, meters or feet.
Traces or Units/Window
Enter in the box the amount of traces or units you would like to see in each presented frame in the screen. Please notice that if you need to remove extra traces or to compress the B-scan, then there are better ways of accomplishing that.
Time/Samples
Select the type of vertical control you want to use to decide how much data is going to be loaded in the viewing area of the B-Scan. It can be selected between samples/window or alternatively nanoseconds/window.
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Start/End Interval
Specify here the start and the end of samples or time to be shown in the vertical view of the data.
Graphic crop
Determines if drag-cursor selection is available for the Crop function.
Show Grid
Check this box if yo want to get the horizontal and vertical gridlines overlayed on your data for easy readouts.
Restore original button
If you get lost entering different settings that don't add up well, or your colleague is using odd ones then press this button to restore the original settings.
Lock Aspect Ratio
When making changes on the vertical or horizontal view the data might start to look "funny". One of the reasons is that the aspect ratio of the image the B-Scan is presenting is not the familiar one. Check this box in order to lock the aspect ratio of the horizontal vs vertical scales.
Polarity
Most GPR data files are arranged in a way that the transmitted pulse has a negative-positive-negative going kind of shape. However, sometimes that's not the case and depending on your usual preferences you can experience trouble interpreting the data.
Check this button to change the polarity of the data so it can be shown in the way you are used to.
Action buttons
Apply all the changes done in any of the tabs without making them final (you can watch on the screen the effects of the new settings).
OK confirms the changes done and exits this dialogue window
Cancel the changes and exit this dialogue window.
Rulers Settings
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The ruler settings dialogue window offers access to all the settings that control the way the scales look and the measurement system the software is using for all its functions.
Units
Select the units to use in the horizontal distance scale and vertical depth scales, metric and imperial units are supported. If you have selected metric then meters and centimeters are available, if you select imperial then feet and inches are the choices.
Size
Select from this drop down menu the correct unit of measurement meters/centimeters if metric system was selected or feet/inches if imperial system was chosen.
Scale color
Select the color of the scales here. It is important to notice that this settings are not global, that means one can have different windows opened simultaneously with different scale colors.
Show labels
This check box enables and disables the labels around the scales. The default setting is enable.
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Scale Mode
Select from this drop down menu the mode for the horizontal scale. It can be distance or traces. When distance is selected and the imported file has the required information then the horizontal scale shows the distance in the units selected from the units drop down menu . When the imported file doesn't have the required information then only traces mode is available and this button is greyed out.
Left Scale Mode
This drop down button selects the type of scale for the vertical left scale, it can be time, depth or elevation. This is very convenient since one can have different types of scales for the left and the right of the b-scan.
Show scale
Enables or disables the presentation of the vertical left scale. The default is enabled.
Right Scale Mode
This drop down button selects the type of scale for the vertical right scale, it can be time, depth or elevation. This is very convenient since one can have different types of scales for the left and the right side of the b-scan.
Show scale
Enables or disables the presentation of the vertical right scale. The default is enabled.
Show scale
This check box enables disables the display of the horizontal scale in your b-scan window.
Action buttons
Press OK button to accept the changes you have made and exit the ruler settings window.
Press Apply to apply the changes to the active b-scan window without exiting the rulers settings dialogue box.
Press Cancel to exit without applying any changes.
Header
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This window presents all the information data it was possible to retrieve from the original data file header. It is also possible to add text to those file extensions supporting that feature. The dielectric constant specified by the file can also be altered here.
Data file information
In this section of the File info dialogue box we can read the properties of the data file such as, name, path, size and creation date.
Dielectric constant field
When the data file is loaded into GPRSoft™ the software will try to read the stored value for the average dielectric constant for the area where the file was collected. If it fails to do so, a default value of 9 will be used instead. If for some reasons the value displayed here is incorrect you can type in a new value and press OK. GPRSoft will ask if you really want to change the stored value for the dielectric constant and it is your decision whether to do it or not. By changing this value you will change the way software calculates and creates vertical representation of data (depth) so be sure of what you are about to do.
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Embedded Data
This box presents all the embedded data that was possible to retrieve from the original data file.
Total amount of traces
The total amount of traces in the file is presented here.
Text area
This is the text area, if some message was embedded within the data file then it will be displayed here.
One can also type in a message and save it in the data file to those file extensions supporting this feature.
Action buttons
Press OK to apply the new dielectric constant value and/or a text message. Alternatively press cancel to exit.
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Key Features
- Import, analyze, process and save ground penetrating radar data.
- Multiple file import and multiview processing.
- Advanced processing features like migration, velocity analysis and background removal.
- Intuitive interface and comprehensive documentation.
- Support for various data formats and output options.
- Integration with Google Earth for easy data visualization.
- Powerful PDF creator for professional report generation.
