Estimate of probability detection of the new hydroacoustics system for measuring hydroacoustic signatures of floating objects

This work describes results in development of the functional model of a new hydroacoustic system for detecting and processing hydroacoustic signals of floating objects. The developed system has a possibility to record digital acoustic signatures (fingerprints) for different types of floating objects. Under water field of the float objects is considered in the area of water space where exist hydroacoustics preassure as result of many activities on float object. This system belongs to the group of passive detection systems that don´t show one´s own presence in watery surroundings. The work gives a new way for further developments of the software and hardware, giving a possibility for the identification types of floating objects. For that purpose, this work describes estimate of probability detection of the system. The work gives relevant parameters as P_D, P_fa, SNR(z), C_F=SNR(y)=6,19 dB, diagrams, t_fa, DT_Hz, as well as tabulated values of indices and threshold of detection.