1. DATA PROCESSING ‘MBMAX’ MULTIBEAM EDITOR
HYPACK ® MULTIBEAM COURSE
4/16/2017
HYPACK® Multibeam Training Seminar

2. HYPACK® Multibeam Training Seminar
MBMAX Introduction
MBMAX menu, tool bar and line selector.
Survey’s Done, Now What?
Need to apply Tide and Sound Velocity corrections.
Adjust offsets if necessary.
Remove fliers from support sensors (GPS for example). Remove all multibeam flyers. But keep all the good points!
Save to Edited format file when done. Re-edit if needed.
That’s the simple explanation of what MBMAX does.
4/16/2017
HYPACK® Multibeam Training Seminar

3. New MBMAX Multicore Processors
Uses WINDOWS’ Memory Mapping function to load Multiple Files simultaneously using ALL available CPU Processors.
(12 Core Machines are now available)
No more going to Lunch while the previous days survey data loads.
SORRY !
4/16/2017
HYPACK® Multibeam Training Seminar

4. Data Flow - MBMAX HYSWEEP SURVEY MBMAX HSX Previously Edited HYSWEEP
SURVEY Data
Additional Corrections for Raw Data
Phase 1
Check Raw Parameters
TID
VEL
HS2
XTF
Other Vendor Raw Format Data
Phase 2
Swath-Based Editing
RAW
HS2
HYPACK
SURVEY
Final Data Formats for Processed Data
Phase 3
Area-Based Editiing
XYZ
XYZ
GSF
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HYPACK® Multibeam Training Seminar

5. HYPACK® Multibeam Training Seminar
MBMAX - Starting Up
Launch MBMAX
Menu or icon bar.
Input File Formats
HSX: Native format of HYSWEEP® Survey.
HS2: MBMAX edit format.
RAW: Native format of HYPACK® Survey.
XYZ: ASCII files.
XTF: Some XTF multibeam files can be converted for processing in MBMAX.
Select Files
Choose individual files or Select All (up to 255).
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6. MBMAX – Still Starting Up
Open Options
Process in Depth or Elevation mode.
Auto Processing
Hands off edit and save with filtering.
Good for a ‘quick look’ or perhaps export to CUBE.
Not commonly used.
Corrections
Tide File: If using files from Manual Tides.
SV File: If using files from Sound Velocity program.
Multiple SV Profiles
Enter time of each cast.
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7. HYPACK® Multibeam Training Seminar
Read Parameters
A Lot Going On Here…
Selections: Select devices. Option to load Sidescan to aid editing.
Device Info: Change offsets if necessary.
Survey Info: Some settings and information from the survey file.
Presort: Simple data thinning removes % of sweeps.
GPS Pre-Filter: Either Position or RTK Tides. Filters based on GPS Mode values, # of satellites, HDOP, and/or speed.
Advanced Read Parameters
RTK Tides: Selections to avoid double correction.
Correct for Induced Heave: If MRU is not at boat CG.
Remove Heave Drift: Averaging method nullifies drift.
Adjust SV Profile…: Replace top of profile with sensor reading at the head.
Ray Tracing: Select Line or Arc method or let MBMAX decide based on profile depth and sampling.
Pat asked to note difference from SB Presort. Added SB Presort display to show that.
4/16/2017
HYPACK® Multibeam Training Seminar

8. Phase 1 - Raw Data Review Line by Line Review
Check that devices are working – no flat lines.
Check for heave drift.
Edit Position data in track lines.
(Block or Single point.)
Use mouse wheel to zoom, right click to pan.
Edit RTK tides.
(Block or Single point)
There’s editing to do!
RTK tide and position spikes and heave drift.
Arrows step between files.
RED Line is Current Displayed File
Tide graph: White is Raw Tide
RED is processed RTK tide.
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HYPACK® Multibeam Training Seminar

9. HYPACK® Multibeam Training Seminar
Phase 1 - Raw Data Review
New SV Profile Window
Data from SV Cast
SV entered in the Sonar and recorded in the RMB record
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HYPACK® Multibeam Training Seminar

10. HYPACK® Multibeam Training Seminar
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HYPACK® Multibeam Training Seminar

11. HYPACK® Multibeam Training Seminar
Bad or NO Sound Velocity Profile
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HYPACK® Multibeam Training Seminar

12. HYPACK® Multibeam Training Seminar
AFTER Correct Sound Velocity Profile Applied
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HYPACK® Multibeam Training Seminar

13. HYPACK® Multibeam Training Seminar
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HYPACK® Multibeam Training Seminar

14. HYPACK® Multibeam Training Seminar
Sound Velocity Error Chart (Feet)
( Difference in Sound Velocity in Feet per Second from Initial Setting ) 10 20 30 40 50 60 70 80 90
100
110
120
130
140
150
160
170
180
190
200 5
0.01
0.02
0.03
0.04
0.05
0.06
0.07
0.08
0.09
0.10
0.11
0.12
0.13
0.14
0.15
0.16
0.17
0.18
0.19
0.20
0.22
0.24
0.26
0.28
0.30
0.32
0.34
0.37
0.39
0.41 15
0.21
0.27
0.33
0.36
0.40
0.43
0.46
0.49
0.52
0.55
0.58
0.61
0.45
0.53
0.57
0.65
0.69
0.73
0.77
0.81
Depth (Feet) 25
0.25
0.35
0.51
0.56
0.66
0.71
0.76
0.86
0.91
0.96
1.01
0.67
0.79
0.85
0.97
1.03
1.10
1.16
1.22 35
0.50
0.64
0.78
0.92
0.99
1.06
1.14
1.21
1.28
1.35
1.42
0.89
1.05
1.30
1.38
1.46
1.54
1.62 45
0.82
1.00
1.09
1.19
1.37
1.55
1.64
1.73
1.83
1.12
1.32
1.52
1.72
1.93
2.03 55
0.44
1.11
1.23
1.34
1.45
1.56
1.67
1.78
1.90
2.01
2.12
2.23
1.58
1.70
1.95
2.07
2.19
2.31
2.43 65
1.71
1.85
1.98
2.11
2.24
2.37
2.51
2.64
0.42
1.13
1.99
2.13
2.27
2.41
2.56
2.70
2.84 75
1.82
2.28
2.59
2.74
2.89
3.04
0.48
2.60
2.76
2.92
3.08
3.25 85
2.93
3.10
3.28
3.45
3.29
3.47
3.65 95
0.38
1.15
2.50
3.66
3.85
4.06
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HYPACK® Multibeam Training Seminar

15. HYPACK® Multibeam Training Seminar
Sound Velocity Error Chart (Meters)
( Difference in Sound Velocity in Meters per Second from Initial Setting ) 10 20 30 40 50 60 70 80 90
100
110
120
130
140
150
160
170
180
190
200 5
0.05
0.11
0.16
0.22
0.27
0.32
0.38
0.44
0.49
0.55
0.60
0.65
0.71
0.76
0.82
0.87
0.93
0.98
1.04
1.09
0.33
0.54
1.21
1.31
1.42
1.53
1.64
1.75
1.86
1.96
2.07
2.18 15
0.97
1.14
1.47
1.81
2.13
2.29
2.46
2.62
2.78
2.95
3.11
3.28
0.43
1.29
1.74
2.41
2.84
3.06
3.27
3.49
3.71
3.93
4.15
4.37
Depth (Meters) 25
1.36
1.62
1.91
2.45
2.73
3.01
3.55
3.82
4.09
4.64
4.91
5.19
5.46
1.63
1.94
2.94
3.62
4.26
4.58
5.24
5.57
5.89
6.22
6.55 35
1.52
2.26
2.67
3.05
3.44
4.22
4.97
5.35
5.73
6.11
6.49
6.88
7.26
7.64
1.30
2.59
4.36
4.82
5.67
6.99
7.42
7.86
8.30
8.73 45
0.48
2.91
3.43
4.42
5.42
6.38
7.37
8.35
8.84
9.33
9.83
1.08
2.72
3.23
5.45
6.03
7.09
8.19
9.28
9.82
10.37
10.92 55
0.59
1.19
1.79
2.39
3.00
3.56
4.20
4.80
5.40
6.00
6.63
7.20
7.80
8.40
9.00
9.61
10.21
10.81
11.41
12.01
2.61
3.88
5.23
7.23
8.51
9.17
10.48
11.13
11.79
12.45
13.10 65
0.70
1.41
2.12
2.83
3.54
4.96
7.83
9.22
9.93
10.64
11.35
12.06
12.77
13.48
14.19
0.75
2.28
3.81
4.53
5.34
6.87
8.44
10.70
11.46
12.23
12.99
13.75
14.52
15.28 75
0.81
4.08
4.85
5.72
6.54
7.36
8.18
9.04
12.28
13.92
14.74
15.56
16.38
0.86
3.48
5.17
6.98
7.85
9.64
12.22
13.97
14.85
15.72
16.59
17.47 85
0.91
1.84
2.77
3.70
4.63
5.50
8.34
9.27
10.24
14.84
15.77
16.70
17.63
18.56
1.95
3.92
4.90
5.82
8.83
10.85
11.78
14.73
17.68
18.67
19.65 95
1.02
2.06
3.10
4.14
6.14
7.25
8.29
10.36
11.45
12.44
15.55
19.70
20.74
2.17
3.26
4.35
6.47
7.63
8.72
10.91
12.05
13.09
16.37
17.46
21.83
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HYPACK® Multibeam Training Seminar

16. HYPACK® Multibeam Training Seminar
SV Interpolation
Option to Load Multiple SV Profiles
Select multiple VEL files. Enter cast times.
Limit of 48 VEL files.
SV profile is interpolated for each ping.
(Based on ping time, not location.)
Interpolated cast is in White.
Using an MVP:
Cast data collection is done while underway.
Cast files (VEL format) are time tagged automatically. 16
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17. HYPACK® Multibeam Training Seminar
SVP Extension
Goal: A reasonable profile beyond the reach of an ocean cast.
Based on a model of Temperature, Pressure and Salinity.
Salinity is relatively constant.
Decreasing SV to 1000 meters (decreasing temperature).
Increasing SV below 1000 meters (increasing pressure).
T (deg C)
S (PPT)
Z (decibar)
SV (m/sec) 9
34.0
500
1493 6
34.1
1000
1490 3
34.2
2000
1494 2
34.3
3000
1507
35.0
10000
1631 17
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18. HYPACK® Multibeam Training Seminar
Adjustment Tools
Data Adjustment in MBMAX
Tide Adjustment, Centerline Method
Interpolates the Tide based on the Time and Position of every data point, from the Tide Files of every Gage, at their stationing along the centerline.
Tide Adjustment, 3 Point Method:
Planar tide interpolation from 3 stations.
Heave Adjustment (Delayed Heave), POS/MV and F180:
Applies Post-processed Heave from files logged by the inertial system Works great!
POSPac Adjustments:
Applies corrected position, heave, pitch, roll, heading, and Tide from POSPac *.OUT files.
Example: Heave Adjustment
Open file containing Post-processed (delayed) Heave.
Enter hour difference, local minus UTC time.
Click Adjust to finish.
Verify it worked by comparing the heave graph before and after adjustment. 18
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19. HYPACK® Multibeam Training Seminar
More Adjustment Tools
POSPac Adjustments:
Applies corrected Position, Pitch, Roll, Heading, and Tide from POSPac *.OUT files.
Option to recalculate RTK tides (below).
HYPACK RAW File Adjustments:
Replace positions with GPS data recorded to the RAW file.
RTK Tide Recalc:
Set project geodesy for RTK tides (Geoid model, KTD file, etc.)
MBMAX: Recalculate tides from project geodesy and WGS latitude, longitude, elevation. 19
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HYPACK® Multibeam Training Seminar 19

20. HYPACK® Multibeam Training Seminar
Phase 2 – Swath Editing
Another Line by Line Review
Transition Phase 1 to 2: “Convert Raw to Corrected” in File menu.
Use Filters to remove gross errors.
Review each line graphically with Manual Edits if needed.
Second Sweep Window for comparison. Sounding Info for details. 20
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21. HYPACK® Multibeam Training Seminar
Phase 2 – Swath Editing
Dual Sweep Windows 21
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22. HYPACK® Multibeam Training Seminar
Filters
Search and Filter Settings
Spike: Removes points deviating from average depth (5 soundings).
Quality: Filters based on sonar quality code.
Intensity: Filters based on beam intensity value.
Overhang: Looks for overhang pattern in sweep profile, and removes it. Works great!
Safe unless you’re trying to sound underneath rocks.
Use HYSWEEP® Survey Limits: Filter based on settings used at survey time.
Savitsky-Golay: Low pass filter based on curve fitting.
Low to High: Avoids removing good points. Doesn’t always work. Sometimes removes entire sweeps!
Gate Size: Allowable distance from curve.
Order: Flexibility of curve. Order 2 = straight line.
Window Size: Number of soundings used in curve fit.
Important !! NOT Good with Vertical Surfaces
Overhang example 22
HYPACK® Multibeam Training Seminar
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23. Sound Velocity Adjustments
Depth profile from a single sweep: Try to flatten it out.
(Works best in flat areas)
Important Assumption:
Sound Velocity from the sensor at the sonar head is correct.
Something needs to be right!
Bottom slope
Bottom curvature: flat bottom = zero curvature.
Adjustment Toolbox 23
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HYPACK® Multibeam Training Seminar 23

24. Sound Velocity Adjustments
Example 1: Moving Salt Water Wedge
Before:
Bottom curvature is clear – the ‘smiley’ face.
Action:
Block out the salt water wedge and shift it downward (Down Button). Tide’s going out.
Result:
A clear improvement.
Each survey line can be corrected this way. 24
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HYPACK® Multibeam Training Seminar 24

25. Sound Velocity Adjustments
Example 2: Missing SV Profile
Before:
Very poor depth data without a sound velocity profile.
Action:
Use New Profile option.
Experiment with Gradient until the bottom flattens out.
No Magical Fix here
Result:
New SV profile
Greatly improved depth data. 25
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HYPACK® Multibeam Training Seminar 25

26. HYPACK® Multibeam Training Seminar
Sweep Windows
Graphical Review and Manual Editing
Two windows, each with it’s own zoom level and perspective.
Zoom, rotate and pan to see and ‘get at’ difficult points.
Eraser, Block and Line Editing tools.
1,000 levels of Undo.
Fast Edit Mode for block and line tools.
Yellow X = points outside filter limits.
The old graphics modes are still available. 26
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27. HYPACK® Multibeam Training Seminar
View and Edit Options
Sweep Tab
Display Style
Wiggle, Dot and TIN methods use standard Windows® graphics.
Enhanced Sweep Graphics mode supports pan / rotate / zoom and requires OpenGL.
Edit Mode (for Block and Line delete)
Default: Points are selected but not removed until the delete tool (inside/outside block or above/below line) is pressed.
Fast: The delete tool is pre-selected and points are removed as soon as the mouse button is released. Hence 1,000 levels of Undo!
Block/Default mode. Click inside or outside button to delete.
Block/Fast mode with delete inside pre-selected.
Line/Default mode. Click above or below button to delete.
Line/Fast mode with delete above pre-selected. 27
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28. HYPACK® Multibeam Training Seminar
More Editing Tools
F5: Marks a Target.
Undelete Block: Restores deleted points.
Point Flag: Flags a questionable sounding for examination in Phase 3.
Sidescan: Shows the sidescan record to assist editing. If it shows up on sidescan, don’t delete it.
Hand: Toggles Rotate/Pan Mode on/off
Rotate/Pan On: Mouse pointer is a hand.
Left-Click Mouse Rotates and Tilts the display.
Right-Click Mouse Drags and Pans the display.
Rotate/Pan Off: Mouse pointer is an arrow.
Left-Click Mouse drag places an edit block or line on the display.
Point Flag helps you locate a point later.
Sidescan record. Arrows give sounding location. 28
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29. Phase 3 – Area Based Editing
All Lines Combined (Overlapping Perspective)
Transition Phase 2 to 3: “Area Based Editing” in File menu.
Soundings are grouped in Matrix cells for statistics and display.
Three Windows: Survey (all data), Profile (matrix row) and Cell.
Survey Window
Cell Window
Profile Window 29
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30. Matrix Options Transition to Phase 3 Use existing HYPACK® MTX file or,
Auto-Size to data. Very convenient.
Option to Rotate to Survey Line is useful as profiles will cut across the channel.
Cell Size:
Auto Cell Size determines best fit, about 25 soundings per cell. Enough for reasonable statistics.
Matrix Options selected on transition to Phase 3. 30
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31. HYPACK® Multibeam Training Seminar
Editing Windows
Profile Window
Survey cross section. Color coding by survey line makes it easy to compare overlap.
Survey Window
Overview of the entire survey.
3-D zoom, pan, tilt and rotate to help ‘interpret’ the soundings and select areas of interest.
View depths or statistics.
Cell Window
Cell statistics; table and histogram.
Flyers stand out!
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32. Statistical Search and Filter
Search and Filter Options
Select a statistic to represent each cell. (Median works well.)
Select limits above and below. Then:
Filter. Be careful not to over-filter.
Search. Locates marginal soundings then you decide.
Filter Limits (yellow) in Cell Window 32
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33. HYPACK® Multibeam Training Seminar
Save Your Work
Choose a File Format
HS2: For additional editing (MBMAX, CUBE, Cloud). For export (e.g., Fledermaus).
You should always SAVE to this Format
XYZ: For export and additional processing (e.g., TIN Model).
XYZ, Intensity: For intensity mapping.
GSF: Generic Sensor Format. For Geocoder.
XYZ Reduction
Save one XYZ point per cell.
Select survey depths (by type) or statistics.
Save at any time during an edit session. Save early and save often! 33
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