FR1605337A - Anti jamming radar device - uses electronic switch, e.g. cathode ray tube to determine phase relationships - Google Patents

Anti jamming radar device - uses electronic switch, e.g. cathode ray tube to determine phase relationships

Info

Publication number
FR1605337A
FR1605337A FR705076A FR705076A FR1605337A FR 1605337 A FR1605337 A FR 1605337A FR 705076 A FR705076 A FR 705076A FR 705076 A FR705076 A FR 705076A FR 1605337 A FR1605337 A FR 1605337A
Authority
FR
France
Prior art keywords
electronic switch
ray tube
cathode ray
radar device
anti jamming
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
Application number
FR705076A
Other languages
French (fr)
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 filed Critical
Priority to FR705076A priority Critical patent/FR1605337A/en
Application granted granted Critical
Publication of FR1605337A publication Critical patent/FR1605337A/en
Expired 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)

Abstract

An anti jamming radar device has the jamming signal, transposed into an intermediate frequency, applied to an electronic switch as a locking signal both directly and after having passed through a delay line which introduces a phase difference proportional to the frequency. The jammed echo signal, transposed into an intermediate frequency is also applied to the electronic switch and is passed or blocked according to whether or not a predetermined phase relationship exists between the two portions of the jamming signal applied to the switch. The electronic switch may be a cathode ray tube.
FR705076A 1955-12-21 1955-12-21 Anti jamming radar device - uses electronic switch, e.g. cathode ray tube to determine phase relationships Expired FR1605337A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR705076A FR1605337A (en) 1955-12-21 1955-12-21 Anti jamming radar device - uses electronic switch, e.g. cathode ray tube to determine phase relationships

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR705076A FR1605337A (en) 1955-12-21 1955-12-21 Anti jamming radar device - uses electronic switch, e.g. cathode ray tube to determine phase relationships

Publications (1)

Publication Number Publication Date
FR1605337A true FR1605337A (en) 1974-10-31

Family

ID=8702192

Family Applications (1)

Application Number Title Priority Date Filing Date
FR705076A Expired FR1605337A (en) 1955-12-21 1955-12-21 Anti jamming radar device - uses electronic switch, e.g. cathode ray tube to determine phase relationships

Country Status (1)

Country Link
FR (1) FR1605337A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2720055C1 (en) * 1977-05-05 1991-03-28 Siemens Ag Primary radar search system with electronic countermeasures (ECCM) through an additional receiving antenna

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2720055C1 (en) * 1977-05-05 1991-03-28 Siemens Ag Primary radar search system with electronic countermeasures (ECCM) through an additional receiving antenna

Similar Documents

Publication Publication Date Title
GB643167A (en) Improvements in and relating to time measuring apparatus
FR1605337A (en) Anti jamming radar device - uses electronic switch, e.g. cathode ray tube to determine phase relationships
GB1351654A (en) Cable fault location
ES238043A1 (en) Improvements in or relating to m.t.i. pulsed radar systems
GB593539A (en) An echo-simulating device for use with radar equipment
JPS5244588A (en) Disturbance detection system
GB1193104A (en) Pulse Amplitude Measurement Technique.
JPS5261743A (en) Protective relay equipment
JPS5624541A (en) Leakage position detector for liquefied metal
MUENTHER Measurement of total electron content using the faraday effect of the satellite signal(Ionospheric electron content determined from faraday effect on transit iv-a satellite signals)
SHLIONSKII Determination of the extremal levels of the rn/r/ function and the MUF under various ionospheric conditions/Opredelenie ekstremal'nykh urovnei rn/r/-funktsii i MPCh pri razlichnykh ionosfernykh usloviiakh/(Ionospheric beam deflection maximum and minimum levels, deriving equations for maximum usable frequency at given ionization conditions and radiation angles)
GB1093459A (en) Ultrasonic thickness measurement
TRIVELPIECE Determination of charge density and collision frequency in a plasma by measuring phase shift and attenuation of an electromagnetic wave propagating through the plasma
SU1839790A1 (en) Device for radar selection of movable targets against a background of landmarks and reflections from passive dipoles
GB843635A (en) Improvements relating to radar detection systems
Wilson et al. Statistical measurements of the detection of a continuous signal by a panoramic receiver
LONGMIRE Review of general principles for shielding against magnetic fields affecting the performance of transformers, relays or microwave devices
CA686552A (en) Phase comparison radar receiver means for measuring the angle of arrival of an echo signal
GB1063064A (en) Radar apparatus
AKSENOV On the passage of low frequency electromagnetic waves through the ionospheric plasma(Low frequency electromagnetic wave passage through plane-stratified magnetoactive ionospheric plasma)
CA621292A (en) Circuit arrangement in radar receivers for controlling the deflection of the cathode-rays in cathode-ray tube indicators
HANSEN Mechanism for the production of very low frequency emissions using whistler or other whistler-mode electromagnetic waves
CA525543A (en) Tuning indicators for frequency shift telegraph systems
GB676587A (en) Pulse-echo type radar systems
BLOOM et al. Description of an installation for receiving satellite signals and calculation of ionospheric electron density on the basis of the measured doppler-fizeau effect