Upgrade RADPRO V 3.42 - read Release note - Geo

RADPRO Version 3.42 Release Note
Minor revisions of RADPRO have been done. The program FDMMigModel is greatly
modified to fix some bugs and to enhance the capabilities. FDMMigModel is a utility
program to establish the velocity structure for the processing of finite difference migration
and is activated by the menu command SpecialProcessing| Setup Velocity Model or by
clicking the button Setup velocity model of the dialog box Finite Difference Migration.
The version no. of the updated program is 1.1.This note contains the explanation of the
revisions of two programs.
1. Updated features of RADPRO
1-1. Drawing Gain tab dialog box
Another method to set the plotting gain is introduced for the convenience. Using this method,
user can set the plotting gain by changing A and B value, where Plotting gain is defined by the
A× 10 B and A value can be changed by the slide bar. As A or B value is changed, Gain value is
also changed to the corresponding one, and vice versa.
1-2. Drawing a depth image reflecting the variable velocity structure
RADPRO assumes homogeneous velocity, and the velocity value stored in the data header is
used when drawing a depth section. The depth scale can be adjusted by editing the velocity
through Edit| Edit Header command. However, when the subsurface velocity severely changes
vertically and/or laterally, the depth image may be greatly distorted since one constant velocity
is assumed in drawing the image. A new way of drawing a depth section is added to incorporate
the variable velocity structure. In order to draw a depth image considering variable structure, the
velocity model file (*.MD2) should be created for the GPR data by the utility program
FDMMigModel or the command SpecialProcessing| FD Migration.
Annotation tab dialog box contains an option to draw a depth image incorporating the variable
velocity structure. In the tab dialog box, firstly select depth section option of Vertical
parameters. Unless this depth section option is to be selected, parameters of Changing velocity
will remain as disabled ones. Check Include velocity model of Changing velocity, then Brows
button of velocity model file will be enabled. Input the velocity model file by pressing the
Brows button.
Example of depth image using the velocity model file. Note that the image is not drawn down to
the end of depth scale axis and the left part of the image contracts, since the average velocity is
quite lower than the velocity value stored in the data header and the velocity distribution at the
left part is lower than that of central and right parts.
2. Updated features of FDMMigModel
2-1. Import_Export: New menu.
- Import Topo. Data reads the topography data file already created by the user and stored in a
disk file, and changes the topography of the velocity model according to the topography data.
Since this function has been inserted as a new menu command, the same function provided by
the File| Open command in the old version was deleted.
- Export model modifies the velocity model to fit other GPR data. When clicking this command,
the program asks the new RD4 file. Based on the information of the new GPR data, the
velocity model will be changed. This command is useful particularly for establishing many
similar velocity structures from different GPR data. This is also useful when the original GPR
data file to be used for creating the velocity model is changed.
2-2. File| New: New command of the File menu. This command creates the basic velocity
model for a certain GPR data.
2-3. File| Open: just opens the velocity model file. When RD4 data file of which name is stored
in the header of the model file does not exists, the RD4 file name will be requested. When the
velocity model is not consistent with the RD4 file data, the program will ask to update the
velocity model to fit the RD4 data file.
2-4. Ellipse: a new model button to insert an ellipse structure.
2-5. Toll bar: new icons to zoom in
, to zoom out
, and to drawing scale
.
RADPRO Version 3.41 Release Note
Minor revisions of RADPRO have been done. RADPRO3DF, a program for drawing 3-d
fence diagram, has been also updated greatly and many bugs of RADPRO3DF were fixed.
This note contains the explanation of the revisions of two programs.
1. Updated features of RADPRO
1-1. Utility | Pick Layer command
- Helper options (see the red circle in the following figure) are inserted to help users to pick
travel time data more easily.
- Helper defines the options for automatic picking of travel time data. To pick the data
automatically, check the Help picking check box of the Pick Layer docking window. When we
press the left button after locating the mouse cursor on the wanted event, RADPRO will set the
data picking window of which center is the mouse clicking point and length is window length.
Then, RADPRO will automatically pick the travel time within the window according to the
selected option among the three ones; Zero crossing, Positive max, and Negative max.
- We can also pick data much faster by dragging the mouse along the wanted event pressing left
mouse button.
1-2. Utility | Arithmetic Operation command
- We can assign different weighting factors (Weighting factors, a and b) to each input file (File A
and File B), thus the resultant data (File C) will be the result of the following equation.
File C = a*(File A)⊙ b*(File B), where ⊙ means the selected arithmetic operation.
- Apply button is to apply and to test the selected operation and weighting factors.
- Batch job option makes the arithmetic operation more convenient when user wants to perform
the same operation repeatedly. For the batch job, the batch file should be created using ASCII
file editor and stored as a disk file. Click Batch job option and input the batch file by pressing
Batch file brows button.
- Format of batch files Line1: No. of batch jobs
Line2: Input file 1 (File A)
Line3: Input file 2 (File B)
Line4: Output file (File C)
Line5: Input file 1 (File A)
Line6: Input file 2 (File B)
Line7: Output file (File C)
:
:
1-3. Fixing bug when drawing a GPR image with topography
- When drawing a GPR image with topography, it may happen sometimes that the surface
profile line does not coincide with the uppermost boundary of GPR image as shown in the
following picture. This bug was fixed.
An example showing the problem when drawing an image with topography. This drawing was
sent by Mr. Maszo Takami of Geological Survey of Hokkaido, Japan.
1-4. Fixing bug in File| Print Preview
- Print Preview command does not draw the horizontal or profile line axis. This bug was fixed.
1-5. Comments on printing problems
- When printing RADPRO images on some specific printers, RADPRO cannot print the
reflection image but print only annotations such as depth bar and surface profile line as in the
following figure.
- RADPRO cannot handle printers directly but only sends several commands to Windows
system. Therefore, this bug may not be the bug of RADPRO itself.
- According to the experience of the author of RADPRO, all the printers showing this problem
were those using PostScript driver. Normally, we can avoid this problem simply by changing the
printer driver not using PostScript. For instance, the default driver of XEROX Phaser 6250DP
printer may be PostScript, which causes this printing problem. In Windows system, several
different printer drivers may be already installed for just one printer. In this case, please select
the printer name not using PostScript. In case of XEROX Phaser 6250DP printer, the default
printer name “Xerox Phaser 6250DP” uses PostScript driver, while the printer name “Xerox
Phaser 6250 PCL” does not. Therefore, we should select the printer name “Xerox Phaser 6250
PCL” when printing RADPRO image. If only the PostScript printer driver is installed, we can
download the necessary files from the web site of the manufacturer or dealer and install it.
An example showing the printing problem. This drawing was also sent by Mr. Maszo Takami of
Geological Survey of Hokkaido, Japan.
2. Updated features of RADPRO3DF
RADPRO3DF had many bugs particularly in calculating the 3-d coordinates in some
specific circumstances. In addition to these bugs, this program might be very inconvenient
to be used, even to the author of RADPRO. For example, we cannot change the GPR
profile and cannot edit the coordinates of GPR profiles which consist of 3-d fence diagram,
and so on. To solve these problems, this program was greatly updated as follows.
2-1. Fence Edit docking window
This docking window placed in the left part of main RADPRO3DF screen provides several
functions such as editing the coordinates of each profile, adding or deleting a profile, showing
or hiding a profile, and so on. Also possible are to changing the way of drawing of each profile
individually, or all profiles simultaneously.
Add profile: adds a new GPR profile data to the fence diagram. The function of this button is
very same as that of the Section| Add Profile command.
Drawing parameters: provides the way to change the drawing method of the whole profile data
consisting of the 3-D fence diagram. We can change the color table and the vertical to
horizontal scale of GPR profile images. The function of this button is very same as that of
the Section| Set Drawing Parameters command or the
toolbar icon.
Show/hide profile: By selecting or unselecting the profiles listed in this listed box, we can show
or hide some images in 3-D fence diagram.
Edit profile: provides the way to edit the coordinates and drawing parameters of each profile
image, and to delete the unwanted the profile.
2-2. How to edit each profile
Press Edit profile button on the Fence Edit docking window, then Profile Edit dialog box will
pop up as shown in the following figure. First, select the wanted profile on Profile list. We can
edit the coordinate of the profile line by changing the items of Format, Line starts at, and Line
ends at. Also we can delete the selected profile by pressing Delete profile button. Drawing
parameters button provides the way of changing drawing parameters of the selected profile only.
Format 1000: defines the spatial location of profile using the coordinate of start point of profile
(X, Y, and Z of Line starts at) and its azimuth angle. 0 degree of Azimuth angle corresponds
to the North and increases clockwise. For instance, 270 degree of Azimuth angle means
that the GPR survey line is extended westwards.
Format 2000: defines the spatial location of profile by the coordinates of start (X, Y, and Z of
Line starts at) and end (X, Y, and Z of Line ends at) points of profile line. Positive x-axis
corresponds to east while positive y-axis means north.
Note) Once editing the two coordinates, RADPRO3DF adjusts the coordinate of Line ends
at using that of Line starts at and the azimuth angle defined by the two coordinates of Line
starts at and Line ends at so that the profile length defined by the number of traces and the
trace interval is equal to the one defined by the two coordinates.
2-3. How to change drawing parameters of each profile image individually
Press Edit profile button on the Fence Edit docking window, then Profile Edit dialog box of the
above figure will pop up. First, select the wanted profile on Profile list on the Profile Edit
dialog box. Click the Drawing parameters button, then Edit Drawing Parameters dialog box
will pop up. All the tab dialog boxes are same as those of RADPRO except Vertical Scale tab
dialog box. Vertical scale of Vertical Scale tab dialog box means the plotting ratio of unit depth
to the unit profile length.
Note) In this way we can change the drawing methods of each profile image, but Vertical scale
is applied to all the profile images to maintain the profile images in the same drawing scale.
2-4. How to change drawing parameters of all profile images simultaneously
Press Drawing parameters button on the Fence Edit docking window, then Drawing
Parameters dialog box consisting of two tab dialog boxes will pop up. In Drawing Gain and
Vertical Scale tab dialog box, we can change plotting gain, the way of normalizing amplitude,
amplitude threshold, and vertical scale. Another tab dialog box, Color Table, is same as that of
RADPRO. We can do the same job by the Section| Set Drawing Parameters command or the
toolbar icon.
RADPRO Version 3.4 Release Note
Updated features of version 3.4
1. Processing menu command
1-1. Test Parameters & Do Processing: One of the most important new functions of
RADPRO v. 4.0. This command helps us to select the optimum processing sequence and
processing parameters by comparing the processed results with different parameters on one
screen or window.
Test Processing Window of Processing | Test parameters & Do Processing command
1-2. Construct Procedure is inserted as a new command.
1-3. Normal Signal Processing command is changed to Do Signal Processing command
and it does not have the function to show a processed trace any more, because the new
command Test Parameters & Do Processing has more powerful and enhanced functions.
1-4. Batch Processing window is slightly changed.
2
Export menu
This new menu has following 5 commands.
2-1. File Export: exports the multiple RD4 files into GPR data files of other format.
2-2. Merge Files: merges multiple RD4 files into one RD4 file.
2-3. Extract traces: extracts a part of traces from a RD4 file and then save it as another
RD4 file.
2-4. Save RADPRO Image: exports RADPRO radargram images as a graphic file such as
Windows bitmap, and GIF87a.
2-5. Save All RADPRO Images: saves the radargram images of all the opened files as
graphic files such as Windows bitmap, and GIF87a in one directory.
3
File menu
3-1. All the commands related with format conversion are deleted. Instead of those
commands, two new commands, Convert File Format and Multiple Files Format
Conversion are inserted in the File menu. And, several functions are also inserted into
these two commands.
3-2. A new command Save All in A Folder is inserted to save all the opened RD4 data in
one directory
4
Edit menu
4-1. Several commands such as Eliminate Trace, Time Shift, etc., are deleted, and their
functions are inserted into the Edit Data command.
4-2. Undo can cancel all the jobs done through graphical editing and by all the Edit
commands except Edit Header.
5
Analysis menu
5-1. Two Velocity Fitting submenu commands, Point Reflector and Linear Event, are
deleted, and their functions are performed by the Velocity Fitting command.
RADPRO screen docked with the window for the Analysis | Velocity Fitting command
5-2. Amplitude Analysis window for is changed and some new functions are added.
5-3. Frequency Spectrum window is slightly changed and can chow the phase spectrum as
well as amplitude spectrum.
Splitter window of amplitude analysis.
6
Drawing menu
6-1. We can save the custom color table created by the user and apply the custom-made
color table as a standard color table.
A dialog box of List of Custom Color Table
6-2. Set Custom Color Freely Dialog Box is slightly changed to adopt new functions.
7
View menu
7-1. Processing History is inserted as a new command to show the previous processing
history.
7-2. View Data Trace window is changed. We can edit a trace precisely in the window.
Splitter window displaying a single trace by the command View | View Data Trace.
8
Utility menu
8-1. The commands related with picking a certain event are deleted except Pick Layer and
their functions are included in the Pick Layer command.
Picking the first arrival time of crosshole tomography data.
8-2. Hilbert Transform command is added to calculate the instantaneous attributes.
8-3. Arithmetic Operation command is added.
8-4. Doubling no. of Traces by Interpolation is not a program of normal signal processing
programs any more. Instead of it, Trace Interpolation is added newly as a command of
Utility.
9
Updated normal processing programs
9-1. Predictive deconvolution.
9-2. Filter in wavenumber domain
9-3. Custom Gain
9-4. Smoothing by 2-D median filtering
10. Output processed file
In the previous version, it was impossible to store the processed data in the input data file.
The new version, the user can set the processed file as the input data file (default setting).
In this case (input file = processed file), the unprocessed data will be stored in the backup
file with the extension of “BAK”.
RADPROfWin Version 3.21 Release Note
1. Functions previously updated
The updated version includes more functions and utilities than what explained in
RADPRO/GPR User’s guide. The recently added functions and utilities are as follows.
- User can change the survey mode (GPR or borehole reflection) in Edit|Edit Header command.
Default survey mode is set to GPR.
- Blank character can be used in data file or directory name, for example “c:\My document\Test
data.rd4”.
- File | Convert File Format command provides the converting option from RADAN file
format of SIR system to RD4 file format.
- File | Merge Files command extended to merge more than two files.
- File | Close all command closes all opened windows.
- Users can save processing information as a file on Processing Procedure window (Save proc.)
and process the data using the saved parameter file (Load proc.). Batch processing command
is added to Processing Menu. So, multiple data sets can be processed at a time using
Processing | Batch processing command. The processed file name is fixed as “BP_” +
original file name. After processing, user can open multiple processed files simultaneously.
- Drawing parameters of an activated window can be saved as a file (Drawing parameters |
Save drawing parameters) and this can be applied to another data set of an activated window
(Drawing parameters | Load drawing parameters) or data sets of all opened widows
(Drawing parameters | Apply parameters to all data).
- The amplitude threshold option is added in Edit drawing parameter dialog box.
- This version provides new utility, Amplitude analysis, which calculates the amplitude or
energy of selected region of data set and illustrates it on a child window. This information can
be saved as a file for the further analysis.
2. Updated features in version 3.2
Version 3.2 can be run on MS Windows 2000 as well as Windows 95/98 platform.
2-1. Finite difference migration
Version 3.2 provides new processing technique, finite difference (FD) migration, Special
Processing | FD Migration. You can migrate radar reflection data with this procedure, when
underground velocity changes significantly both in horizontal and in vertical directions. The
special feature of FD migration of RADPRO is to provide a way to image underground
correctly without any correction, when GPR data are acquired in areas with irregular topography.
FD migration requires two parameters, maximum dip, and velocity model file. User can choose
any of the maximum dip options, but increasing maximum dip results in increasing computing
time. The velocity model file contains the information on the underground velocity distribution,
which can be generated by a menu command, Special Processing | Set up Velocity Model.
Version 3.2 provides an easy way to set up the subsurface velocity model. You can refer the
following papers for the algorithm of RADPRO FDM migration.
Beasley, C., and Lynn, W., 1992, The zero-velocity layer: Migration from irregular surfaces:
Geophysics, v. 57, pp. 1435-1443
Berkhout, A. J., 1979, Steep dip finite-difference migration: Geophysical Prospecting, v. 27, pp.
196-213.
Lee, M.W. and Suh, S. Y., 1985, Optimization of one-way wave equations: Geophysics, v. 50,
pp. 1634-1637.
2-2. Velocity model
You can set up or edit the subsurface velocity model by clicking a menu command, Special
Processing | Set up Velocity Model, or a button Set up velocity model in a dialog box, Finite
Difference Migration. Actually, all the jobs to set up velocity model are done by the
independent program “FDMMigModel.exe”.
The first dialog box determines whether to establish a model consistent with GPR data file, or to
edit an existing velocity model. The topography information stored in a disk file can be
incorporated in velocity model. The format of topography file can be referred to RADPRO
manual, “3-4. Creating radar reflection images with topography”.
The horizontal axis in the velocity model is profile length in meter, and the vertical one is twoway travel time in nsec. The origin of the horizontal axis is the same as ‘Start position’ stored in
RD4 file header.
Inserting an object: First click one of the four buttons, ‘Insert layer’, ‘Rectangle’, ‘Circle’, and
‘Polygon’.
- Inserting rectangle or circle: Place mouse cursor where to insert a desired object, and
drag mouse while pressing left button.
- Inserting polygon: Move mouse and press left mouse button sequentially. Right mouse
button ends constructing a polygon.
- Inserting a layer: Same as inserting polygon.
Editing an object property: Locate the mouse cursor on the desired object and press the right
mouse button. You can change the velocity and the drawing color of a selected object, or delete
the selected object itself.
Editing a layer boundary: Place mouse cursor on a layer boundary, and drag mouse pressing
left button. It results in inserting a new nodal point, defining the layer boundary. Deleting a
nodal point can be done by locating mouse cursor on a nodal point and pressing right button.
Topography can be edited in a similar manner.
Button ‘Vel. field’ calculates velocity field according to the given model. It has an option in
smoothing velocity field by 2-D average filtering to avoid an artifact possibly caused by severe
velocity contrast. Normally, smoothing velocity field may not be required. Once calculating
velocity field, velocity distribution can be drawn by clicking the radio button ‘Show vel.’.
Save velocity file: After saving the velocity distribution, you can process FDM migration by
selecting the velocity model file. The extension name of velocity model file is fixed as “MD2”.
2-3. Additional updated functions
-
Multiple Files Open command is added to File menu, which enables user to open
multiple files simultaneously.
Text File to RD4 File command is added to File | Convert File Format menu, which
enables user to convert text file to RD4 file. Here, text file means a disk file containing
data part only, trace by trace. Followings are the formats of text file that RADPRO can
handle.
1) Binary file: 32 bits float, 16 bits integer, 32 bits integer
-
2) ASCII file
The new utility “Resample Traces” is added, which provides user to resample traces. It
has an option of several kinds of filtering in resampling traces.
3. Updated features in version 3.21
3-1. Data editing
The three commands of Edit main menu, Make Null Traces, Remove Traces, and Mute
Selected Zone, are discarded. Instead, a new command, Edit Data, is added to Edit main menu.
Using the Edit Data dialog box, you can perform data editing, such as making null traces,
removing traces, and muting a zone, by defining trace interval and/or time interval. This new
command is to provide users a way of editing GPR data more accurately.
A new command Edit Data is newly added to the pop-up menu appearing when you select a
zone or trace interval following the way in section 3-2-1 of RADPRO manual and click right
button to edit data or to analyze spectrum. This pop-up menu command has the same function of
the new menu command Edit Data | Edit.
3-2. Additionally updated functions
- Frequency spectrum and F-K spectrum window: By dragging mouse, you can resize the
window of frequency spectrum and f-k spectrum. And they can show the frequency,
wavenumber, or amplitude value corresponding to the mouse cursor location.
- Output file button in Processing procedure, velocity filtering and f-k filtering window:
New Output file button is added to select output file more easily.
- Operator length of smoothing filter for f-k and velocity filtering can be changed as wanted. In
the previous version, the operator length was fixed to 15. Actually, the smoothing filter is 2dimensional one, so the length 15 means 15x15 filter.