FR2346727A1 - Jamming of laser range finder from aircraft - employs expanded jamming laser beam automatically orientated towards range finder - Google Patents

Jamming of laser range finder from aircraft - employs expanded jamming laser beam automatically orientated towards range finder

Info

Publication number
FR2346727A1
FR2346727A1 FR7609124A FR7609124A FR2346727A1 FR 2346727 A1 FR2346727 A1 FR 2346727A1 FR 7609124 A FR7609124 A FR 7609124A FR 7609124 A FR7609124 A FR 7609124A FR 2346727 A1 FR2346727 A1 FR 2346727A1
Authority
FR
France
Prior art keywords
jamming
laser
aircraft
range finder
laser beam
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
FR7609124A
Other languages
French (fr)
Other versions
FR2346727B1 (en
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to FR7609124A priority Critical patent/FR2346727A1/en
Priority to DE19762646664 priority patent/DE2646664A1/en
Priority to NL7700599A priority patent/NL7700599A/en
Priority to BE6045939A priority patent/BE852771A/en
Publication of FR2346727A1 publication Critical patent/FR2346727A1/en
Application granted granted Critical
Publication of FR2346727B1 publication Critical patent/FR2346727B1/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
    • H04K3/40—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"
    • 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
    • H04K3/41—Jamming having variable characteristics characterized by the control of the jamming activation or deactivation time
    • 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
    • H04K3/42—Jamming having variable characteristics characterized by the control of the jamming frequency or wavelength
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04K—SECRET COMMUNICATION; JAMMING OF COMMUNICATION
    • H04K3/00—Jamming of communication; Counter-measures
    • H04K3/60—Jamming involving special techniques
    • H04K3/65—Jamming involving special techniques using deceptive jamming or spoofing, e.g. transmission of false signals for premature triggering of RCIED, for forced connection or disconnection to/from a network or for generation of dummy target signal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04K—SECRET COMMUNICATION; JAMMING OF COMMUNICATION
    • H04K3/00—Jamming of communication; Counter-measures
    • H04K3/80—Jamming or countermeasure characterized by its function
    • H04K3/82—Jamming or countermeasure characterized by its function related to preventing surveillance, interception or detection
    • H04K3/825—Jamming or countermeasure characterized by its function related to preventing surveillance, interception or detection by jamming
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04K—SECRET COMMUNICATION; JAMMING OF COMMUNICATION
    • H04K2203/00—Jamming of communication; Countermeasures
    • H04K2203/10—Jamming or countermeasure used for a particular application
    • H04K2203/14—Jamming or countermeasure used for a particular application for the transfer of light or images, e.g. for video-surveillance, for television or from a computer screen
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04K—SECRET COMMUNICATION; JAMMING OF COMMUNICATION
    • H04K2203/00—Jamming of communication; Countermeasures
    • H04K2203/10—Jamming or countermeasure used for a particular application
    • H04K2203/22—Jamming or countermeasure used for a particular application for communication related to vehicles

Abstract

Problems of generating decoys or false codes for laser range finders used for locating aircraft in flight are released by a laser jamming system. This system is of low weight permitting it to be carried on an aircraft. Laser emissions are received by omnidirectional detectors at the extremities of an aircraft. Electronic circuits determine difference in time of arrival of the same laser pulse to determine its orientation. These circuits initiate an expanded jamming laser beam which is orientated towards the emissions. A collimator and convergent lens expand the jamming beam which is orientated by a plane mirror (10) mounted on a rotatable suspension shaft (11).
FR7609124A 1976-03-30 1976-03-30 Jamming of laser range finder from aircraft - employs expanded jamming laser beam automatically orientated towards range finder Granted FR2346727A1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
FR7609124A FR2346727A1 (en) 1976-03-30 1976-03-30 Jamming of laser range finder from aircraft - employs expanded jamming laser beam automatically orientated towards range finder
DE19762646664 DE2646664A1 (en) 1976-03-30 1976-10-15 DISCONNECTING DEVICE ARRANGED ON AIRCRAFT
NL7700599A NL7700599A (en) 1976-03-30 1977-01-21 AIRCRAFT FOR CONTROLLING A GROUND TELEMETRY SYSTEM.
BE6045939A BE852771A (en) 1976-03-30 1977-03-22 AIRPORT JAMMING SYSTEM

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7609124A FR2346727A1 (en) 1976-03-30 1976-03-30 Jamming of laser range finder from aircraft - employs expanded jamming laser beam automatically orientated towards range finder

Publications (2)

Publication Number Publication Date
FR2346727A1 true FR2346727A1 (en) 1977-10-28
FR2346727B1 FR2346727B1 (en) 1983-02-25

Family

ID=9171110

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7609124A Granted FR2346727A1 (en) 1976-03-30 1976-03-30 Jamming of laser range finder from aircraft - employs expanded jamming laser beam automatically orientated towards range finder

Country Status (4)

Country Link
BE (1) BE852771A (en)
DE (1) DE2646664A1 (en)
FR (1) FR2346727A1 (en)
NL (1) NL7700599A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2689252A1 (en) * 1980-06-06 1993-10-01 Alsthom Cge Alcatel Tracking system for monitoring IR self-guided missiles - includes laser producing tracking signal and noise signals to unbalance internal missile guidance system

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3609834A1 (en) * 1986-03-22 1987-09-24 Krauss Maffei Ag Method and device for interfering with electromagnetic radiation

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2408058A1 (en) * 1974-02-20 1975-08-28 Eltro Gmbh Jamming device on aircraft - is used for combatting radar controlled antiaircraft weapons with laser rangefinder

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2408058A1 (en) * 1974-02-20 1975-08-28 Eltro Gmbh Jamming device on aircraft - is used for combatting radar controlled antiaircraft weapons with laser rangefinder

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
NV8032/71 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2689252A1 (en) * 1980-06-06 1993-10-01 Alsthom Cge Alcatel Tracking system for monitoring IR self-guided missiles - includes laser producing tracking signal and noise signals to unbalance internal missile guidance system

Also Published As

Publication number Publication date
BE852771A (en) 1977-09-22
NL7700599A (en) 1977-10-04
DE2646664A1 (en) 1977-10-13
FR2346727B1 (en) 1983-02-25

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Legal Events

Date Code Title Description
TP Transmission of property
ST Notification of lapse