FR2305737A1 - Measurement of radar pulse carrier frequency - is performed by frequency to voltage converter with output for AFC system - Google Patents

Measurement of radar pulse carrier frequency - is performed by frequency to voltage converter with output for AFC system

Info

Publication number
FR2305737A1
FR2305737A1 FR7509321A FR7509321A FR2305737A1 FR 2305737 A1 FR2305737 A1 FR 2305737A1 FR 7509321 A FR7509321 A FR 7509321A FR 7509321 A FR7509321 A FR 7509321A FR 2305737 A1 FR2305737 A1 FR 2305737A1
Authority
FR
France
Prior art keywords
frequency
output
voltage converter
measurement
radar pulse
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
FR7509321A
Other languages
French (fr)
Other versions
FR2305737B3 (en
Inventor
Claude Mersier
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 FR7509321A priority Critical patent/FR2305737A1/en
Publication of FR2305737A1 publication Critical patent/FR2305737A1/en
Application granted granted Critical
Publication of FR2305737B3 publication Critical patent/FR2305737B3/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
    • G01S7/28—Details of pulse systems
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R23/00—Arrangements for measuring frequencies; Arrangements for analysing frequency spectra
    • G01R23/02—Arrangements for measuring frequency, e.g. pulse repetition rate; Arrangements for measuring period of current or voltage
    • G01R23/06—Arrangements for measuring frequency, e.g. pulse repetition rate; Arrangements for measuring period of current or voltage by converting frequency into an amplitude of current or voltage

Landscapes

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

Abstract

A radar pulse carrier frequency is measured by a frequency to voltage converter and can be used to slave the local oscillator output in a radar system. Rise and fall time of the pulse are accounted for. A frequency measuring circuit is included in a radar system at the output of a limiting amplifier which follows a mixer which has one input from the local oscillator. The measuring circuit comprises a frequency to voltage converter (21) and filter (22) between which is a switching circuit (30) controlled from a differentiator (31) connected to the converter output and a comparator (32).
FR7509321A 1975-03-25 1975-03-25 Measurement of radar pulse carrier frequency - is performed by frequency to voltage converter with output for AFC system Granted FR2305737A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7509321A FR2305737A1 (en) 1975-03-25 1975-03-25 Measurement of radar pulse carrier frequency - is performed by frequency to voltage converter with output for AFC system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7509321A FR2305737A1 (en) 1975-03-25 1975-03-25 Measurement of radar pulse carrier frequency - is performed by frequency to voltage converter with output for AFC system

Publications (2)

Publication Number Publication Date
FR2305737A1 true FR2305737A1 (en) 1976-10-22
FR2305737B3 FR2305737B3 (en) 1977-12-02

Family

ID=9153051

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7509321A Granted FR2305737A1 (en) 1975-03-25 1975-03-25 Measurement of radar pulse carrier frequency - is performed by frequency to voltage converter with output for AFC system

Country Status (1)

Country Link
FR (1) FR2305737A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2371816A1 (en) * 1976-11-23 1978-06-16 Labo Cent Telecommunicat Coherent phase-locked oscillator for pulse Doppler radar - has clipper between oscillators control input and mixers output

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2371816A1 (en) * 1976-11-23 1978-06-16 Labo Cent Telecommunicat Coherent phase-locked oscillator for pulse Doppler radar - has clipper between oscillators control input and mixers output

Also Published As

Publication number Publication date
FR2305737B3 (en) 1977-12-02

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