FR2646924B1 - Procede et dispositif d'antibrouillage d'un equipement de detection electromagnetique comportant une antenne a reflecteur, antenne et equipement ainsi obtenus - Google Patents

Procede et dispositif d'antibrouillage d'un equipement de detection electromagnetique comportant une antenne a reflecteur, antenne et equipement ainsi obtenus

Info

Publication number
FR2646924B1
FR2646924B1 FR7621400A FR7621400A FR2646924B1 FR 2646924 B1 FR2646924 B1 FR 2646924B1 FR 7621400 A FR7621400 A FR 7621400A FR 7621400 A FR7621400 A FR 7621400A FR 2646924 B1 FR2646924 B1 FR 2646924B1
Authority
FR
France
Prior art keywords
antenna
equipment
scaling method
electromagnetic sensing
sensing equipment
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
FR7621400A
Other languages
English (en)
Other versions
FR2646924A1 (fr
Inventor
Roland Trigon
Serge Drabowitch
Joseph Roger
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Thales SA
Original Assignee
Thomson CSF SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Thomson CSF SA filed Critical Thomson CSF SA
Priority to FR7621400A priority Critical patent/FR2646924B1/fr
Priority to GB28136/77A priority patent/GB1605327A/en
Priority to US05/816,280 priority patent/US5008677A/en
Priority to IT25472/77A priority patent/IT1224057B/it
Priority to NL7707704A priority patent/NL7707704A/nl
Priority to DE2731485A priority patent/DE2731485C1/de
Publication of FR2646924A1 publication Critical patent/FR2646924A1/fr
Application granted granted Critical
Publication of FR2646924B1 publication Critical patent/FR2646924B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
    • G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
    • G01S7/28—Details of pulse systems
    • G01S7/2813—Means providing a modification of the radiation pattern for cancelling noise, clutter or interfering signals, e.g. side lobe suppression, side lobe blanking, null-steering arrays
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q15/00—Devices for reflection, refraction, diffraction or polarisation of waves radiated from an antenna, e.g. quasi-optical devices
    • H01Q15/14—Reflecting surfaces; Equivalent structures
    • H01Q15/148—Reflecting surfaces; Equivalent structures with means for varying the reflecting properties
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
    • H01Q3/44—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the electric or magnetic characteristics of reflecting, refracting, or diffracting devices associated with the radiating element
    • H01Q3/46—Active lenses or reflecting arrays
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
    • G01S13/02—Systems using reflection of radio waves, e.g. primary radar systems; Analogous systems
    • G01S13/06—Systems determining position data of a target
    • G01S13/42—Simultaneous measurement of distance and other co-ordinates
    • G01S13/44—Monopulse radar, i.e. simultaneous lobing
FR7621400A 1976-07-13 1976-07-13 Procede et dispositif d'antibrouillage d'un equipement de detection electromagnetique comportant une antenne a reflecteur, antenne et equipement ainsi obtenus Expired - Lifetime FR2646924B1 (fr)

Priority Applications (6)

Application Number Priority Date Filing Date Title
FR7621400A FR2646924B1 (fr) 1976-07-13 1976-07-13 Procede et dispositif d'antibrouillage d'un equipement de detection electromagnetique comportant une antenne a reflecteur, antenne et equipement ainsi obtenus
GB28136/77A GB1605327A (en) 1976-07-13 1977-07-05 Aerials
US05/816,280 US5008677A (en) 1976-07-13 1977-07-07 Anti-jamming device for a radar provided with a reflector antenna
IT25472/77A IT1224057B (it) 1976-07-13 1977-07-07 Procedimento e dispositivo antidisturbo di un equipaggiamento di rivelazione elettromagnetico comportante un'antenna a riflettore, e antenna ed equipaggiamento cosi' ottenuti
NL7707704A NL7707704A (nl) 1976-07-13 1977-07-11 Werkwijze en inrichting voor ontstoring van een elektromagnetische detectieinrichting voorzien van een antenne met reflector.
DE2731485A DE2731485C1 (de) 1976-07-13 1977-07-12 Verfahren und Vorrichtung zur Stoerverminderung bei einem elektromagnetischen Rueckstrahl-Ortungsgeraet

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7621400A FR2646924B1 (fr) 1976-07-13 1976-07-13 Procede et dispositif d'antibrouillage d'un equipement de detection electromagnetique comportant une antenne a reflecteur, antenne et equipement ainsi obtenus

Publications (2)

Publication Number Publication Date
FR2646924A1 FR2646924A1 (fr) 1990-11-16
FR2646924B1 true FR2646924B1 (fr) 1991-10-25

Family

ID=9175657

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7621400A Expired - Lifetime FR2646924B1 (fr) 1976-07-13 1976-07-13 Procede et dispositif d'antibrouillage d'un equipement de detection electromagnetique comportant une antenne a reflecteur, antenne et equipement ainsi obtenus

Country Status (6)

Country Link
US (1) US5008677A (fr)
DE (1) DE2731485C1 (fr)
FR (1) FR2646924B1 (fr)
GB (1) GB1605327A (fr)
IT (1) IT1224057B (fr)
NL (1) NL7707704A (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2697949B1 (fr) * 1992-11-06 1995-01-06 Thomson Csf Antenne pour radar notamment de désignation et de trajectographie.
US5319373A (en) * 1992-11-13 1994-06-07 Maxwell Robert M Method and apparatus for determining ship position in a television image
FR2705498B1 (fr) * 1993-05-14 1996-09-20 Henri Sadones Antenne de faisceau hertzien à direction de rayonnement commutable.
US5590031A (en) * 1994-07-27 1996-12-31 Mead, Jr.; Franklin B. System for converting electromagnetic radiation energy to electrical energy
FR2725075B1 (fr) * 1994-09-23 1996-11-15 Thomson Csf Procede et dispositif d'elargissement du diagramme de rayonnement d'une antenne active
FR2812457B1 (fr) 2000-07-28 2004-05-28 Thomson Csf Reflecteur hyperfrequence actif a bi-polarisation, notamment pour antenne a balalyage electronique
US6697009B2 (en) * 2001-06-15 2004-02-24 Lockheed Martin Corporation Adaptive digital beamforming architecture for target detection and angle estimation in multiple mainlobe and sidelobe jamming
US10541472B2 (en) * 2014-01-22 2020-01-21 Evolv Technologies, Inc. Beam forming with a passive frequency diverse aperture
CN112731309B (zh) * 2021-01-06 2022-09-02 哈尔滨工程大学 一种基于双线性高效神经网络的有源干扰识别方法

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3189900A (en) * 1959-09-18 1965-06-15 Litton Systems Inc Airborne radar with sea clutter suppression
US3882503A (en) * 1960-08-17 1975-05-06 Gte Sylvania Inc Wave detection apparatus
GB1389817A (en) * 1969-11-27 1975-04-09 Emi Ltd Radar systems
GB1486902A (en) * 1974-10-21 1977-09-28 Marconi Co Ltd Radar aerial arrangements
US4070675A (en) * 1976-10-21 1978-01-24 Motorola Inc. Power rejection apparatus using a null-constrained subarray for MTI radar applications

Also Published As

Publication number Publication date
FR2646924A1 (fr) 1990-11-16
DE2731485C1 (de) 1991-02-28
US5008677A (en) 1991-04-16
GB1605327A (en) 1991-03-13
IT1224057B (it) 1990-09-26
NL7707704A (nl) 1990-09-03

Similar Documents

Publication Publication Date Title
JPS5472620A (en) Correlation tracking device
NL176404C (nl) Detectieplaatje voor een elektromagnetisch identificatiestelsel.
GB2005519B (en) Electronic surveillance systems
BE894760A (fr) Procede et appareil pour deceler le vol, par detection de l'attenuation d'un circuit resonnant
NL184547C (nl) Electronisch diefstaldetectiestelsel.
FR2319109A1 (fr) Dispositif de detection des deplacements d'un cable
AR225083A1 (es) Dispositivo de vigilancia,para detectar la presencia,en un espacio controlado,de un receptor-retransmisor miniaturizado de ondas electromagneticas
FR2646924B1 (fr) Procede et dispositif d'antibrouillage d'un equipement de detection electromagnetique comportant une antenne a reflecteur, antenne et equipement ainsi obtenus
BE860297A (fr) Dispositif de surveillance
FR2584213B1 (fr) Dispositif de calcul d'une transformee de fourier discrete, glissante, et son application a un systeme radar.
NO780079L (no) Mateinnretning for antenne.
FR2674028B1 (fr) Procede et dispositif de determination du diagramme de rayonnement d'une antenne.
DE2861165D1 (de) Monopulse radar apparatus
FR2531296B1 (fr) Procede et dispositif de detection de boucle en phase sonnerie
JPS53127720A (en) Focal point detection device
IT7824850A0 (it) Dispositivo per la sorveglianza della temperatura senza contatto.
FR2353901A1 (fr) Procede et dispositif de calcul de correlation
BE871508A (fr) Dispositif de detection de rayonnement
RO72634A (fr) Dispositif electromagnetique
BE852156A (fr) Dispositif pour la detection de rayonnement
FR2352412A1 (fr) Systeme d'antenne
FR2709183B1 (fr) Procédé et installation d'essai d'un matériel sensible à des signaux électromagnétiques rayonnés tel qu'un radar.
FR2346378A1 (fr) Procede de polymerisation de cyclo-olefines
TR21991A (tr) Yarik algilama anteni
FR2736160B1 (fr) Dispositif anti-detection pour antenne radar

Legal Events

Date Code Title Description
ST Notification of lapse