Design of passive sonar buoy simulator based on measured data

Passive sonar buoy simulator can provide supports for the development and acceptance of sonar buoy signal receipt-equipment. In the paper, the generating mechanism of underwater acoustic target radiated noise is analyzed. Then spectrum analysis methods are studied and the analysis of measured underwater acoustic target radiated noises is carried out. Afterward the passive sonar buoy simulator is presented by designing the software as well as the hardware. Finally, the simulator is tested and the consequences illustrate that the spectrum of buoy signals produced by the simulator agrees well with the measured ones.