What is dual side scan sonar?

What is dual side scan sonar?

2 Side-Scan Sonar. Side-scan sonar is the system that provides high-resolution seafloor morphology from both sides of the vessel track. The sonar data, often called sonographs, are acquired using a transducer pair mounted on a deep-towed tow-fish, one for the port side and the other for the starboard side.

What does a side scan sonar measure?

A sidescan sonar uses high-frequency sound pulses that are bounced off the sea floor to create an image of the sea floor morphology shape) and show differences in seabed texture and substrate types. Typically, a sidescan sonar consists of two transducers mounted in a towed body or ‘fish’.

What is a side scan transducer?

Side scan sonar is a category of active sonar system for detecting and imaging objects on the seafloor. The multiple physical sensors of the sonar — called a transducer array — send and receive the acoustic pulses that help map the seafloor or detect other objects.

What device is used for side scan sonar?

Side-scan uses a sonar device that emits conical or fan-shaped pulses down toward the seafloor across a wide angle perpendicular to the path of the sensor through the water, which may be towed from a surface vessel or submarine, or mounted on the ship’s hull.

What is the difference between multibeam and side scan sonar?

Multibeam backscatter is the reflectivity measurement, where as the sidescan sonar imagery is the actual intensity of the return signal. The Sidescan sonar towing configuration provides greater maneuverability, as the depth of the tow-fish above the seafloor can be adjusted, in view of the swath width.

Is it OK to have 2 transducers side by side?

While it is not recommended that more than one transducer be run simultaneously, there can be multiple transducers installed on a boat. If two transducers are transmitting at or close to the same frequency and the signals cross, interference may appear on the display of your Garmin Marine Chartplotter.