Discussion on Condition of Torpedo Active Homing Concealed Signal

The development of torpedo homing technology with low probability of intercept (LPI) will become an important trend. This paper introduces the concept of radar LPI into torpedo homing system, and lays emphasis on the conditions required for torpedo to get active homing concealed signal based on the analysis of importance and methods of designing homing waveform. The overall design ideas of active homing concealed signal and classification of the signal forms are put forward, and several common LPT signals are provided. This study may provide a reference both for the further research on methods of generating and detecting active concealed signal and for the feasibility study of application of concealed signal to torpedo homing in order to improve combat effectiveness of torpedo.