Systems that sweep their acoustic beam through an arc or full circle to generate panoramic images of the underwater environment. They can use mechanical rotation or electronic beam steering. These sonars are ideal for structure inspections, search operations, and navigation in confined or turbid waters.
Category
Core Acoustic Concepts
The Most Important Sonar Terms Explained
Acoustic Image
A visual rendering created by plotting sonar echoes by their intensity and time delay. Acoustic images resemble photographs but are generated by sound, revealing underwater scenes even in zero visibility.Acoustic Shadow
A dark or signal-void region behind an object that blocks the sonar beam. The length and shape of acoustic shadows help infer object dimensions and orientation, enhancing target interpretation.AUV (Autonomous Underwater Vehicle)
A self-navigating underwater robot that executes pre-programmed missions to collect sonar, imaging, or environmental data. It is used in deep-sea mapping, military reconnaissance, and oceanographic research where endurance and autonomy are required.