EP 0414865 B1 19940209 - PROCESS FOR MASKING THE NOISE SIGNALS EMITTED BY THE SOUND-EMITTING MECHANICAL ELEMENTS OF A VEHICLE, IN PARTICULAR A SUBMERGED SUBMARINE, AND SUBMARINE.
Title (en)
PROCESS FOR MASKING THE NOISE SIGNALS EMITTED BY THE SOUND-EMITTING MECHANICAL ELEMENTS OF A VEHICLE, IN PARTICULAR A SUBMERGED SUBMARINE, AND SUBMARINE.
Title (de)
VERFAHREN ZUM TARNEN DER VON DEN SCHALLABSTRAHLENDEN MECHANISCHEN ELEMENTEN EINES FAHRZEUGES ABGESTRAHLTEN SCHALLSIGNALE; INSBESONDERE EINES GETAUCHTEN UNTERSEEBOOTES UND UNTERSEEBOOT.
Title (fr)
PROCEDE POUR CAMOUFLER LES SIGNAUX SONORES EMIS PAR LES PARTIES MECANIQUES D UN VEHICULE, EN PARTICULIER UN SOUS-MARINE EN PLONGEE, ET SOUS-MARIN.
Publication
Application
Priority
DE 3908578 A 19890316
Abstract (en)
[origin: WO9010928A1] A process is useful for influencing a noise source, in particular of a submerged submarine (20). The submarine acts as a noise source and emits a noise signal (S; 24, 25, 26) with a first frequency spectrum with at least a first intensity peak. In order to render the detection of the frequency spectrum by means of passive noise-locating systems (13) more difficult, the first frequency spectrum is modulated stochastically and/or the frequency of the intensity peak is shifted, by influencing the noise source.
IPC 1-7
IPC 8 full level
F41H 3/00 (2006.01); B63B 3/13 (2006.01); B63G 8/34 (2006.01); G01S 7/52 (2006.01); G10K 11/175 (2006.01); G10K 11/178 (2006.01); H02P 27/06 (2006.01)
CPC (source: EP US)
B63G 8/34 (2013.01 - EP US); G10K 11/175 (2013.01 - EP US); H04K 1/003 (2013.01 - EP US); H04K 1/04 (2013.01 - EP US); H04K 3/827 (2013.01 - EP US); H04K 3/46 (2013.01 - EP US); H04K 3/68 (2013.01 - EP US); H04K 3/825 (2013.01 - EP US); H04K 2203/12 (2013.01 - EP US)
Designated contracting state (EPC)
FR GB IT NL SE
DOCDB simple family (publication)
WO 9010928 A1 19900920; DE 3908578 A1 19900920; DE 3908578 C2 19920109; EP 0414865 A1 19910306; EP 0414865 B1 19940209; JP 2681541 B2 19971126; JP H04501174 A 19920227; US 5208784 A 19930504
DOCDB simple family (application)
DE 9000197 W 19900316; DE 3908578 A 19890316; EP 90904230 A 19900316; JP 50412290 A 19900316; US 61430090 A 19901115