FR2262809A1 - Interference suppression circuit for radar receivers - operates on different carrier frequencies little differing from each other - Google Patents

Interference suppression circuit for radar receivers - operates on different carrier frequencies little differing from each other

Info

Publication number
FR2262809A1
FR2262809A1 FR7407064A FR7407064A FR2262809A1 FR 2262809 A1 FR2262809 A1 FR 2262809A1 FR 7407064 A FR7407064 A FR 7407064A FR 7407064 A FR7407064 A FR 7407064A FR 2262809 A1 FR2262809 A1 FR 2262809A1
Authority
FR
France
Prior art keywords
carrier frequencies
carrier
operates
interference suppression
suppression circuit
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
FR7407064A
Other languages
French (fr)
Other versions
FR2262809B1 (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.)
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 FR7407064A priority Critical patent/FR2262809A1/en
Priority to DE19752508881 priority patent/DE2508881C3/en
Publication of FR2262809A1 publication Critical patent/FR2262809A1/en
Application granted granted Critical
Publication of FR2262809B1 publication Critical patent/FR2262809B1/fr
Granted 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
    • G01S7/36—Means for anti-jamming, e.g. ECCM, i.e. electronic counter-counter measures

Landscapes

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

Abstract

An attenuator in series with a first carrier suppression filter is provided between the i.f. stage output and the receiver synchronous detector. Output signals from a second carrier suppression filter, parallel with the first and followed by a switch, are applied to the attenuator. The first carrier suppression filter has a maximum attenuation for all carrier frequencies generating interference signals. The second carrier suppression filter has a maximum attenuation for all carrier frequencies of the respective frequency range, including the receiving carrier frequency, and delivers a pulse train corresponding to the sidebands of the interference signal to be eliminated.
FR7407064A 1974-03-01 1974-03-01 Interference suppression circuit for radar receivers - operates on different carrier frequencies little differing from each other Granted FR2262809A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FR7407064A FR2262809A1 (en) 1974-03-01 1974-03-01 Interference suppression circuit for radar receivers - operates on different carrier frequencies little differing from each other
DE19752508881 DE2508881C3 (en) 1974-03-01 1975-02-28 Circuit arrangement for interference suppression in radar receivers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7407064A FR2262809A1 (en) 1974-03-01 1974-03-01 Interference suppression circuit for radar receivers - operates on different carrier frequencies little differing from each other

Publications (2)

Publication Number Publication Date
FR2262809A1 true FR2262809A1 (en) 1975-09-26
FR2262809B1 FR2262809B1 (en) 1976-12-10

Family

ID=9135682

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7407064A Granted FR2262809A1 (en) 1974-03-01 1974-03-01 Interference suppression circuit for radar receivers - operates on different carrier frequencies little differing from each other

Country Status (2)

Country Link
DE (1) DE2508881C3 (en)
FR (1) FR2262809A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0298845A1 (en) * 1987-07-07 1989-01-11 Thomson-Csf Method and apparatus for the protection against a jammer in a radio receiver comprising several switchable antennas, and their use in radio direction finders

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0298845A1 (en) * 1987-07-07 1989-01-11 Thomson-Csf Method and apparatus for the protection against a jammer in a radio receiver comprising several switchable antennas, and their use in radio direction finders
FR2617981A1 (en) * 1987-07-07 1989-01-13 Thomson Csf METHOD AND DEVICE FOR PROTECTING AGAINST AN INTERMEDIOR IN A RADIO STATION COMPRISING MULTIPLE SWITCHING ANTENNAS AND THEIR USE IN REALIZING RADIOGONIOMETERS

Also Published As

Publication number Publication date
DE2508881C3 (en) 1978-07-27
DE2508881A1 (en) 1975-09-25
FR2262809B1 (en) 1976-12-10
DE2508881B2 (en) 1977-12-08

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