Low probability analysis of interception of underwater mine active fuze

Low probability of interception by sonar and technological means were studied based on the sonar equation and theory of signal detection.The idea of low probability of intercept was applied to resolving the problems such as system capabilities,safety,high transmitter power consumption,and stealth of active fuze of mine.Simulations indicate that in order to get LPI,the active fuze detection threshold should be below 6 dB,and the signal length should be bigger that 104,and the sending waveform should be random.