NL7707704A - Werkwijze en inrichting voor ontstoring van een elektromagnetische detectieinrichting voorzien van een antenne met reflector. - Google Patents

Werkwijze en inrichting voor ontstoring van een elektromagnetische detectieinrichting voorzien van een antenne met reflector. Download PDF

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Publication number
NL7707704A
NL7707704A NL7707704A NL7707704A NL7707704A NL 7707704 A NL7707704 A NL 7707704A NL 7707704 A NL7707704 A NL 7707704A NL 7707704 A NL7707704 A NL 7707704A NL 7707704 A NL7707704 A NL 7707704A
Authority
NL
Netherlands
Prior art keywords
reflector
phase
level
output signal
phase change
Prior art date
Application number
NL7707704A
Other languages
English (en)
Dutch (nl)
Inventor
Roland Trigon
Serge Drabowitch
Joseph Roger
Original Assignee
Thomson Csf
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 filed Critical Thomson Csf
Publication of NL7707704A publication Critical patent/NL7707704A/nl

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
NL7707704A 1976-07-13 1977-07-11 Werkwijze en inrichting voor ontstoring van een elektromagnetische detectieinrichting voorzien van een antenne met reflector. NL7707704A (nl)

Applications Claiming Priority (2)

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
FR7621400 1976-07-13

Publications (1)

Publication Number Publication Date
NL7707704A true NL7707704A (nl) 1990-09-03

Family

ID=9175657

Family Applications (1)

Application Number Title Priority Date Filing Date
NL7707704A NL7707704A (nl) 1976-07-13 1977-07-11 Werkwijze en inrichting voor ontstoring van een elektromagnetische detectieinrichting voorzien van een antenne met reflector.

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
WO2015112748A1 (fr) * 2014-01-22 2015-07-30 Evolv Technology, Inc. Formation de faisceaux avec ouverture diverse en fréquences passives
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
US5008677A (en) 1991-04-16
DE2731485C1 (de) 1991-02-28
FR2646924B1 (fr) 1991-10-25
GB1605327A (en) 1991-03-13
IT1224057B (it) 1990-09-26
FR2646924A1 (fr) 1990-11-16

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A1C A request for examination has been filed
BV The patent application has lapsed