Seafloor Imagery - Sidescan and Backscatter

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But… you still want to make sure the gains are set properly Display in waterfall with no adjustments. Notice the darken area near nadir, <strong>and</strong> the lighten area on the outer edge Raw Data: Gain = 0 Auto TVG – Sigma = 7 Use the gain controls to enhance the image, <strong>and</strong> to balance the signal
Maintaining a Proper Bottom Track is critical Why removing the bottom track isn’t a good idea: The bottom track will provides a visual display of how close the towfish is to the bottom. If you see something like this…Speed up or pull the cable in fast!
Page 1 and 2: Seafloor Imagery Sidescan and Backs
Page 3 and 4: Sidescan systems - why use them •
Page 5 and 6: Sidescan types Sidescan frequency
Page 7 and 8: What to do with Side Scan data Mosa
Page 9 and 10: Sonar system components • The son
Page 11 and 12: Sidescan positioning Getting the po
Page 13 and 14: Operating a fixed mount (on survey
Page 15 and 16: Sidescan Resolution
Page 17 and 18: Along track resolution why objects
Page 19 and 20: How to do a self check of object de
Page 21 and 22: Backscatter How we see images on th
Page 23 and 24: Sidescan data collection
Page 25 and 26: Data collection in HYPACK Two progr
Page 27 and 28: Setting up a Sidescan Device In Sid
Page 29 and 30: Survey planning: 100% and 200% cove
Page 31: Sidescan TOOLS Many sidescan system
Page 35 and 36: The target height may not be exact
Page 37 and 38: Sidescan Mosaic Processes Stage 1:
Page 39 and 40: Sidescan Mosaic Processes Stage 3:
Page 41 and 42: Sidescan Controls Adjustments Righ
Page 43 and 44: Sidescan Controls Adjustments Gains
Page 45 and 46: Targeting: Example
Page 47 and 48: Target Viewer and Classification U
Page 49 and 50: Resolution Calculator Determine the
Page 51 and 52: Using Coverage Map to manage target
Page 53 and 54: Sidescan Interpretation
Page 55 and 56: The Shadow Effect Imaging the seafl
Page 57 and 58: Proving the chart is wrong On the c
Page 59 and 60: Sidescan for bottom classification
Page 61 and 62: GEOCODER Data Flow Side Scan Data F
Page 63 and 64: Remosaicing Users can remosaic enti
Page 65 and 66: Bottom Classification: Extracting t
Page 67 and 68: Output ARA results to DXF Export AR

Seafloor Imagery - Sidescan and Backscatter

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