Accession Number : ADD017431

Title :   Torpedo Decoy Signal Generator.

Descriptive Note : Patent application filed 20 Jul 70, Patented 29 Mar 94,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s) : White, Phillip K ; Dildy, Clell A , Jr

Report Date : 29 Mar 1994

Pagination or Media Count : 8

Abstract : A torpedo countermeasure decoy which produces and broadcasts signals that are usually more attractive to a homing torpedo than those emanating from its intended target. Timely reset staircase generators combined with timely opened and closed gates generate stairstep signals which are added by a summing amplifier to produce a programmed composite signal thereof. A bank of voltage-controlled oscillators are driven by said composite signal in such a manner as to produce a predetermined plurality of discrete frequency signals within a predetermined plurality of consecutive but separated frequency bands within a given frequency spectrum all of which are then effectively broadcast within the aqueous medium in the ambient environment of the torpedo's intended target-that is, the vessel to be protected. (MM)

Descriptors :   *SIGNAL GENERATORS, *PATENTS, *TORPEDO COUNTERMEASURES, *HOMING TORPEDOES, OSCILLATORS, TARGET DISCRIMINATION, DECOYS, TRANSDUCERS, TRIGGER CIRCUITS

Subject Categories : Underwater Ordnance

Distribution Statement : APPROVED FOR PUBLIC RELEASE