Design and Implementation of Hardware Circuits for Single-Beam Imaging Sonar

The ocean, as the earliest origin of life, harbors abundant water resources, mineral resources, biological resources, as well as fuel resources such as methane hydrates, oil, and natural gas. General Secretary Xi Jinping attaches great importance to the construction of a maritime power, and has delivered significant speeches and made important directives on multiple occasions regarding maritime affairs. Against this backdrop, relevant units commissioned the joint development by the author's research group of a single-beam imaging sonar device capable of domestically replacing foreign sonar products, aiming to meet the demands of underwater detection in both military and civilian fields. This paper, starting from the perspective of circuit design, establishes the overall design framework of the sonar product, introduces the circuit designs of the receiving circuit module, power supply module, stepper motor drive module, and conducts performance tests on the circuit to verify its functionality. Finally, underwater tests are conducted on the entire sonar system to validate its imaging effectiveness.