Maritime Emergency Search and Rescue Early Warning System Based on Sonar Positioning

With the development of China's shipbuilding industry, China has developed into a large maritime country. The density of ships at sea has increased, and the probability of dangerous accidents has gradually increased. At present, China's current maritime search and rescue capabilities are insufficient. This paper focuses on China's existing maritime For the problem of insufficient search and rescue capabilities, starting from the traditional sonar positioning principle, a maritime emergency search and rescue early warning system based on sonar positioning is proposed and designed, combined with existing signal processing technology, data acquisition and data classification learning algorithms, greatly improved Maritime positioning accuracy, and the system will be carried out on-the-spot experiments. The experiment passes the two measurement ranges of 0–50 m and 50–100 m and the voltage data measured by the hydrophone, and the accuracy rate of the distance measurement of the target object is obtained through processing and calculation It can reach 85%, which meets the setting requirements of use.