| 摘要 |
FIELD: physics.SUBSTANCE: in the method of determining parameters of a torpedo moving on a homing trajectory, involving receiving acoustic signals of the torpedo with a hydroacoustic antenna mounted on observer ship, converting the acoustic signal to an electric signal, pre-amplification and primary processing of the received signal, automatic angle tracking of the torpedo, classifying the received signal and determining motion parameters of the torpedo in a computer, includes further reception of probing radiation signals of the torpedo homing system, determining frequency of the probing signal, duration thereof, tracking period and level; classification results are used to determine parameters of the torpedo homing system - antenna area, level of reception acoustic interference; reflectivity of the observer ship is determined; propagation loss and threshold level of the probing signal Pare determined using a sonar equation applied to the torpedo homing system; the current signal level Pis compared with the threshold signal level Pand the moment when the condition P?Pis satisfied is defined as the moment of detection of the torpedo by the observer.EFFECT: determining the moment of an observer detects the torpedo homing system, high efficiency of counteracting security of the observer.2 dwg |
