A device for automatic indication of the target, in particular in the event of a passive sonar fallen by

摘要

P & in this device, use is made of a logic circuit 6, which gives an indication of a target that, if certain criteria are met. A correlator of maximum value kmax = f (theta) and a correlator of passage through zero (kazv theta = f) have their inputs connected to a converter of the signals received and their outputs to the logic circuit 6 by means of the discriminators of criteria of the target. / p