FR2269719A1 - Radar local oscillator frequency controller - has complementary correction voltage memory and address unit - Google Patents

Radar local oscillator frequency controller - has complementary correction voltage memory and address unit

Info

Publication number
FR2269719A1
FR2269719A1 FR7415266A FR7415266A FR2269719A1 FR 2269719 A1 FR2269719 A1 FR 2269719A1 FR 7415266 A FR7415266 A FR 7415266A FR 7415266 A FR7415266 A FR 7415266A FR 2269719 A1 FR2269719 A1 FR 2269719A1
Authority
FR
France
Prior art keywords
address unit
local oscillator
oscillator frequency
frequency
voltage
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
FR7415266A
Other languages
French (fr)
Other versions
FR2269719B1 (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
Dassault Electronique 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 Dassault Electronique SA filed Critical Dassault Electronique SA
Priority to FR7415266A priority Critical patent/FR2269719A1/en
Publication of FR2269719A1 publication Critical patent/FR2269719A1/en
Application granted granted Critical
Publication of FR2269719B1 publication Critical patent/FR2269719B1/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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Channel Selection Circuits, Automatic Tuning Circuits (AREA)

Abstract

The frequency of a magnetron is controlled by a voltage from a frequency control circuit. This voltage is also applied to a sampling circuit controlled by synchronisation signals and to an address unit connected through an input output unit to a memory. This memory contains digital values of correction voltages which are selected by the address unit to correspond with frequency control voltages. A decoder applies a voltage to a summing amplifier with an input from the sampling circuit. The output voltage adjusts the local oscillator frequency which is then compared with the magnetron frequency by mixing and discrimination circuits connected to the sampling circuit.
FR7415266A 1974-05-02 1974-05-02 Radar local oscillator frequency controller - has complementary correction voltage memory and address unit Granted FR2269719A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7415266A FR2269719A1 (en) 1974-05-02 1974-05-02 Radar local oscillator frequency controller - has complementary correction voltage memory and address unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7415266A FR2269719A1 (en) 1974-05-02 1974-05-02 Radar local oscillator frequency controller - has complementary correction voltage memory and address unit

Publications (2)

Publication Number Publication Date
FR2269719A1 true FR2269719A1 (en) 1975-11-28
FR2269719B1 FR2269719B1 (en) 1979-03-30

Family

ID=9138387

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7415266A Granted FR2269719A1 (en) 1974-05-02 1974-05-02 Radar local oscillator frequency controller - has complementary correction voltage memory and address unit

Country Status (1)

Country Link
FR (1) FR2269719A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2450536A1 (en) * 1979-02-28 1980-09-26 Sits Soc It Telecom Siemens CIRCUIT ARRANGEMENT FOR TRANSCEIVER STATIONS, PARTICULARLY FOR RADARS
US4823133A (en) * 1987-01-28 1989-04-18 U.S. Philips Corporation Radar system
EP1591801A1 (en) * 2004-04-29 2005-11-02 Saab Ab Automatic frequency control for a magnetron radar

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2450536A1 (en) * 1979-02-28 1980-09-26 Sits Soc It Telecom Siemens CIRCUIT ARRANGEMENT FOR TRANSCEIVER STATIONS, PARTICULARLY FOR RADARS
US4823133A (en) * 1987-01-28 1989-04-18 U.S. Philips Corporation Radar system
EP1591801A1 (en) * 2004-04-29 2005-11-02 Saab Ab Automatic frequency control for a magnetron radar

Also Published As

Publication number Publication date
FR2269719B1 (en) 1979-03-30

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Legal Events

Date Code Title Description
ST Notification of lapse