Marine sonar systems are technologies used to detect and locate objects underwater. They work by emitting sound waves and measuring the time it takes for the echoes to return. This information helps in mapping the seafloor, locating marine life, and identifying underwater hazards. These systems are essential for various applications, including fishing, submarine navigation, and oceanographic research. Different types of sonar, such as side-scan sonar and multibeam sonar, provide detailed images and data about underwater environments, enhancing our understanding of marine ecosystems and aiding in safe maritime operations.