Accession Number : ADD009323
Title : Homing Torpedo System.
Descriptive Note : Patent,
Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC
Personal Author(s) : Heinrich,Morton O
Report Date : 22 Dec 1981
Pagination or Media Count : 9
Abstract : The patent concerns an echo-ranging homing torpedo having mean for normally transmitting search pulses at a predetermined repetition rate, and having a receiver wherein detection of target echo signals, during listening intervals between search pulse transmission instants, is limited by the pressure of reverberation signals, said receiver including a TVG amplifier followed by a signal amplitude-threshold type of detection circuit for discrimination of target echo signals from said reverberation signals, the gain-increase characteristic of said TVG amplifier normally being set to limit target-echo detection sensitivity to an extent preventing false-alarm response under the maximum reverberation conditions.
Descriptors : *Patents, *Search sonar, *Amplifiers, Time, Gain, Variables, Echo ranging, Homing torpedoes, Acoustic torpedoes, Pulse amplifiers, Timing circuits, Sonar transducers, Electroacoustic transducers, Automatic gain control, Transmitter receivers, Sonar targets, Submarine detection, Reverberation
Subject Categories : Electrical and Electronic Equipment
Acoustic Detection and Detectors
Distribution Statement : APPROVED FOR PUBLIC RELEASE