FR2375604A1 - SIMULTANEOUS LISTENING AND JAMMING SYSTEM - Google Patents

SIMULTANEOUS LISTENING AND JAMMING SYSTEM

Info

Publication number
FR2375604A1
FR2375604A1 FR7638893A FR7638893A FR2375604A1 FR 2375604 A1 FR2375604 A1 FR 2375604A1 FR 7638893 A FR7638893 A FR 7638893A FR 7638893 A FR7638893 A FR 7638893A FR 2375604 A1 FR2375604 A1 FR 2375604A1
Authority
FR
France
Prior art keywords
signals
systems
jamming
jamming system
signal received
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.)
Granted
Application number
FR7638893A
Other languages
French (fr)
Other versions
FR2375604B1 (en
Inventor
Roland Carre
Benoit Rabouille
Jean-Michel Coiffard
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 FR7638893A priority Critical patent/FR2375604A1/en
Priority to GB5306577A priority patent/GB1579477A/en
Priority to IT5229977A priority patent/IT1090628B/en
Priority to DE19772756888 priority patent/DE2756888C2/en
Publication of FR2375604A1 publication Critical patent/FR2375604A1/en
Application granted granted Critical
Publication of FR2375604B1 publication Critical patent/FR2375604B1/fr
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04K—SECRET COMMUNICATION; JAMMING OF COMMUNICATION
    • H04K3/00—Jamming of communication; Counter-measures
    • H04K3/20—Countermeasures against jamming
    • H04K3/28—Countermeasures against jamming with jamming and anti-jamming mechanisms both included in a same device or system, e.g. wherein anti-jamming includes prevention of undesired self-jamming resulting from jamming
    • 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
    • G01S7/38—Jamming means, e.g. producing false echoes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04K—SECRET COMMUNICATION; JAMMING OF COMMUNICATION
    • H04K3/00—Jamming of communication; Counter-measures
    • H04K3/40—Jamming having variable characteristics
    • H04K3/45—Jamming having variable characteristics characterized by including monitoring of the target or target signal, e.g. in reactive jammers or follower jammers for example by means of an alternation of jamming phases and monitoring phases, called "look-through mode"

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Radar Systems Or Details Thereof (AREA)

Abstract

L'invention concerne des systèmes générateurs de signaux de brouillage à large bande et de réception simultanée de signaux éventuels provenant d'autres systèmes. Pour reduire le couplage parasite entre l'antenne d'émission des signaux de brouillage et l'antenne de réception des signaux éventuels, les signaux de brouillage sont caractérisés par une modulation se reproduisant identique à elle-même avec une période T et, à la réception, chaque signal reçu est soustrait du signal reçu un temps T avant. Application aux stations radar.The invention relates to systems for generating broadband interference signals and simultaneously receiving any signals from other systems. To reduce the parasitic coupling between the transmitting antenna of the jamming signals and the receiving antenna of the possible signals, the jamming signals are characterized by a reproducing modulation identical to itself with a period T and, at the reception, each signal received is subtracted from the signal received a time T before. Application to radar stations.

FR7638893A 1976-12-23 1976-12-23 SIMULTANEOUS LISTENING AND JAMMING SYSTEM Granted FR2375604A1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
FR7638893A FR2375604A1 (en) 1976-12-23 1976-12-23 SIMULTANEOUS LISTENING AND JAMMING SYSTEM
GB5306577A GB1579477A (en) 1976-12-23 1977-12-20 System for simultaneous listening and jamming
IT5229977A IT1090628B (en) 1976-12-23 1977-12-20 SIMULTANEOUS LISTENING AND DISORDER SYSTEM
DE19772756888 DE2756888C2 (en) 1976-12-23 1977-12-20 Jamming and eavesdropping device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7638893A FR2375604A1 (en) 1976-12-23 1976-12-23 SIMULTANEOUS LISTENING AND JAMMING SYSTEM

Publications (2)

Publication Number Publication Date
FR2375604A1 true FR2375604A1 (en) 1978-07-21
FR2375604B1 FR2375604B1 (en) 1980-09-19

Family

ID=9181468

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7638893A Granted FR2375604A1 (en) 1976-12-23 1976-12-23 SIMULTANEOUS LISTENING AND JAMMING SYSTEM

Country Status (4)

Country Link
DE (1) DE2756888C2 (en)
FR (1) FR2375604A1 (en)
GB (1) GB1579477A (en)
IT (1) IT1090628B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2582409A1 (en) * 1979-09-07 1986-11-28 Thomson Csf SIMULTANEOUS LISTENING AND INTERFERING DEVICE
EP0738056A2 (en) * 1995-04-15 1996-10-16 GRUNDIG E.M.V. Elektro-Mechanische Versuchsanstalt Max Grundig & Co. KG. Method and apparatus for wireless data transmission on periodically disturbed transmission channels

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2914518B1 (en) * 2007-03-27 2009-05-01 Commissariat Energie Atomique SECURE COMMUNICATION SYSTEM BETWEEN A CONTACTLESS CARD READER AND A CARD.

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3953851A (en) * 1967-12-08 1976-04-27 Eskil Weidstam Device for a radio station comprising a jammer
BE789147A (en) * 1971-09-24 1973-03-22 Dassault Electronique DEVICE FOR THE NEUTRALIZATION OF A FIRE CONDUCT RADAR

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2582409A1 (en) * 1979-09-07 1986-11-28 Thomson Csf SIMULTANEOUS LISTENING AND INTERFERING DEVICE
EP0738056A2 (en) * 1995-04-15 1996-10-16 GRUNDIG E.M.V. Elektro-Mechanische Versuchsanstalt Max Grundig & Co. KG. Method and apparatus for wireless data transmission on periodically disturbed transmission channels
EP0738056A3 (en) * 1995-04-15 1997-08-20 Grundig Emv Method and apparatus for wireless data transmission on periodically disturbed transmission channels

Also Published As

Publication number Publication date
DE2756888A1 (en) 1978-07-13
GB1579477A (en) 1980-11-19
IT1090628B (en) 1985-06-26
DE2756888C2 (en) 1985-02-28
FR2375604B1 (en) 1980-09-19

Similar Documents

Publication Publication Date Title
CA1285338C (en) Satellite-based vehicle communication/position determination system
GB2222922A (en) Vehicle location system
RU93038863A (en) METHOD FOR DETERMINING LOCATION OF A REMOTE OBJECT, METHOD OF TRACKING FOR A MOBILE OBJECT AND INTEGRATED SYSTEM IMPLEMENTING THESE METHODS
FR2678437B1 (en) MIXED ANTENNA FOR RECEIVING SIGNALS TRANSMITTED SIMULTANEOUSLY BY SATELLITE AND EARTH STATIONS, PARTICULARLY FOR RECEIVING DIGITAL SOUND BROADCASTING SIGNALS.
EP0807829A3 (en) Satellite ephemeris determination system using GPS tracking techniques
DK1060619T3 (en) data Communication system
CA2145525A1 (en) Burst Tone Range Processing System and Method
SE8301018L (en) KIT AND EQUIPMENT FOR MONITORING A WATER AREA
FR2412177A1 (en) HIGH SEPARATOR-POWERED ANTENNA SYSTEM
GB541665A (en) Improvements relating to high frequency wave transmission systems
US2140730A (en) System of communication
FR2375604A1 (en) SIMULTANEOUS LISTENING AND JAMMING SYSTEM
GB2180425A (en) Navigation system and method
FR2392552A1 (en) INFORMATION TRANSMISSION SYSTEM BY HERTZIAN BEAMS, IN WHICH TRANSMIT ANTENNAS AND RECEPTION ANTENNAS ARE LOCATED WITHIN SIGHT.
GB2048536A (en) Intruder detection system
GB1496472A (en) Method and apparatus for the directional characteristic of an echo sounding receiver
JP3573430B2 (en) Radar equipment
Van Willigen Eurofix
GB9508081D0 (en) Improvement to radars and sonars
FR2410283A1 (en) DOPPLER RADAR IMPROVEMENTS
JPH0362331B2 (en)
US5812092A (en) Radiocommunications and localizing device
ES8305937A1 (en) Beam forming system for omnidirectional sonars.
GB2226730A (en) Location of the position of a mobile object
GB1212734A (en) Improvements in or relating to underwater echo-sounding

Legal Events

Date Code Title Description
CL Concession to grant licences
ST Notification of lapse