Side Scan Sonar Target Height Calculator
Hydrographic surveying & seafloor imaging: Compute object height from acoustic shadow length ($L_s$), towfish altitude ($H$), slant range ($R_s$), and nadir blind zone width.
Sonar Geometry & Altitude
Standard: 10–15% of max slant range
Length of acoustic darkness zone
Distance from towfish
Raw time vs slant-range corrected
0° = Flat seabed; + = Upslope away, - = Downslope
Calculated Target Dimensions
Target Object Height H_t:
--
meters (feet)
Acoustic Grazing Angle θ_g:
--
degrees to seabed
Nadir Blind Zone Total Width:
--
m directly below towfish
Corrected Ground Range R_g:
--
m across seafloor track
| Slant Range to Shadow Tip: | -- |
| Shadow Ratio (L_s / H_t): | -- |
| Slope Effect Correction Factor: | -- |
| Survey Classification: | -- |
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