FR2276731A2 - Control system for radar receiver oscillator frequency - stores carrier wave frequency characteristic and compares with reference via synchronised switches - Google Patents

Control system for radar receiver oscillator frequency - stores carrier wave frequency characteristic and compares with reference via synchronised switches

Info

Publication number
FR2276731A2
FR2276731A2 FR7422066A FR7422066A FR2276731A2 FR 2276731 A2 FR2276731 A2 FR 2276731A2 FR 7422066 A FR7422066 A FR 7422066A FR 7422066 A FR7422066 A FR 7422066A FR 2276731 A2 FR2276731 A2 FR 2276731A2
Authority
FR
France
Prior art keywords
carrier wave
synchronised
switches
control system
radar receiver
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
FR7422066A
Other languages
French (fr)
Other versions
FR2276731B2 (en
Inventor
Yves Besson
Francois Oriol
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
Priority claimed from FR7137302A external-priority patent/FR2280238A1/en
Application filed by Thomson CSF SA filed Critical Thomson CSF SA
Priority to FR7422066A priority Critical patent/FR2276731A2/en
Priority to IT53495/74A priority patent/IT1021779B/en
Priority to GB4485174A priority patent/GB1477155A/en
Priority to SE7413867A priority patent/SE404636B/en
Priority to NL7414577A priority patent/NL7414577A/en
Priority to US05/523,006 priority patent/US3996588A/en
Priority to DE19742454334 priority patent/DE2454334A1/en
Publication of FR2276731A2 publication Critical patent/FR2276731A2/en
Publication of FR2276731B2 publication Critical patent/FR2276731B2/fr
Application granted granted Critical
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D9/00—Demodulation or transference of modulation of modulated electromagnetic waves
    • H03D9/02—Demodulation using distributed inductance and capacitance, e.g. in feeder lines
    • 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
    • G01S13/08—Systems for measuring distance only
    • G01S13/10—Systems for measuring distance only using transmission of interrupted, pulse modulated waves
    • 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
    • G01S13/08—Systems for measuring distance only
    • G01S13/10—Systems for measuring distance only using transmission of interrupted, pulse modulated waves
    • G01S13/24—Systems for measuring distance only using transmission of interrupted, pulse modulated waves using frequency agility of carrier wave

Abstract

Control system for the frequency of the oscillator (O1) of a radar receiver. The frequency is regulated to the carrier wave of a pulse signal. During the entire pulse duration of the pulse signal (F3) a parameter characteristic to the carrier wave is measured (D2) and stored in a computer memory. The same parameter is measured relative to desired frequency and compared with the values stored in the memory. The comparator (CP) circuit has two inputs, one connected to the memory and one to the oscillator to be controlled. There are two synchronised switches at the input of a frequency voltage converter of ering either the oscillator output (F1) or the pulse signal.
FR7422066A 1971-10-18 1974-06-25 Control system for radar receiver oscillator frequency - stores carrier wave frequency characteristic and compares with reference via synchronised switches Granted FR2276731A2 (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
FR7422066A FR2276731A2 (en) 1971-10-18 1974-06-25 Control system for radar receiver oscillator frequency - stores carrier wave frequency characteristic and compares with reference via synchronised switches
IT53495/74A IT1021779B (en) 1974-06-25 1974-10-11 PROCEDURE AND AUTOMATIC FREQUENCY CONTROL SYSTEM
GB4485174A GB1477155A (en) 1974-06-25 1974-10-16 System for automatic frequency control
SE7413867A SE404636B (en) 1974-06-25 1974-11-05 DEVICE FOR ADJUSTING THE FREQUENCY OF AN OSCILLATOR TO THE PERFORMANCE OF A PULSE
NL7414577A NL7414577A (en) 1974-06-25 1974-11-08 METHOD AND DEVICE FOR CONTROLLING THE FREQUENCY OF AN OSCILLATOR AND RADAR RECEIVER USING THE DEVICE.
US05/523,006 US3996588A (en) 1974-06-25 1974-11-11 System for automatic frequency control
DE19742454334 DE2454334A1 (en) 1974-06-25 1974-11-15 METHOD AND ARRANGEMENT FOR FREQUENCY CONTROL

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR7137302A FR2280238A1 (en) 1971-10-18 1971-10-18 Automatic oscillator frequency enslaving system - has memory storing frequency parameter of pulse carrier
FR7422066A FR2276731A2 (en) 1971-10-18 1974-06-25 Control system for radar receiver oscillator frequency - stores carrier wave frequency characteristic and compares with reference via synchronised switches

Publications (2)

Publication Number Publication Date
FR2276731A2 true FR2276731A2 (en) 1976-01-23
FR2276731B2 FR2276731B2 (en) 1978-05-26

Family

ID=26216667

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7422066A Granted FR2276731A2 (en) 1971-10-18 1974-06-25 Control system for radar receiver oscillator frequency - stores carrier wave frequency characteristic and compares with reference via synchronised switches

Country Status (1)

Country Link
FR (1) FR2276731A2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2439511A1 (en) * 1978-10-16 1980-05-16 Licentia Gmbh ASSEMBLY INCLUDING A REGULATION LOOP
FR2439527A1 (en) * 1978-10-16 1980-05-16 Licentia Gmbh REMOTE CONTROL ASSEMBLY, ESPECIALLY FOR BROADCASTING AND TELEVISION RECEIVERS

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2439511A1 (en) * 1978-10-16 1980-05-16 Licentia Gmbh ASSEMBLY INCLUDING A REGULATION LOOP
FR2439527A1 (en) * 1978-10-16 1980-05-16 Licentia Gmbh REMOTE CONTROL ASSEMBLY, ESPECIALLY FOR BROADCASTING AND TELEVISION RECEIVERS

Also Published As

Publication number Publication date
FR2276731B2 (en) 1978-05-26

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