The SW-ATD01 anti frogman sonar system mainly consists of the following core components: data processing unit, data storage unit, display and control unit, dedicated software platform, and communication unit. The system utilizes reverberation suppression technology to effectively smooth out background noise and significantly improve the output signal-to-noise ratio. By adopting automatic image registration technology and dynamic object separation algorithm, the system can significantly improve image clarity. In addition, the system also adopts an underwater frogman recognition algorithm based on motion characteristic parameters and highlight features, which enables the system to achieve automatic tracking and recognition of frogmans even in complex reverberation backgrounds. Once an underwater frogman target enters the key control area, the system can quickly detect, track, and identify the target, and immediately trigger warning and alarm mechanisms. At the same time, the system will upload the detection data to the control center in real time, ensuring that security personnel can receive alarm information in real time and respond quickly.