sonarbased
Sonar-based refers to technologies and methods that rely on sound propagation through water to detect, identify, map, or track objects and features underwater. The term encompasses active sonar, which emits acoustic pulses and listens for echoes, and passive sonar, which monitors ambient sounds with hydrophone arrays.
Systems typically include transducers, signal processing hardware or software, and interfaces with navigation or data-display systems.
Applications span maritime navigation, underwater imaging (bathymetry, side-scan sonar, synthetic aperture sonar), object detection and classification
Operating principles involve several modalities. Active sonar uses transmitted chirps or pings and interprets time delays,
Data products commonly include sonar imagery, bathymetric maps, and acoustic intensity distributions. Benefits include high-resolution underwater