FR2231014A1 - - Google Patents

Info

Publication number
FR2231014A1
FR2231014A1 FR7417475A FR7417475A FR2231014A1 FR 2231014 A1 FR2231014 A1 FR 2231014A1 FR 7417475 A FR7417475 A FR 7417475A FR 7417475 A FR7417475 A FR 7417475A FR 2231014 A1 FR2231014 A1 FR 2231014A1
Authority
FR
France
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
FR7417475A
Other languages
French (fr)
Other versions
FR2231014B1 (enrdf_load_html_response
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.)
Siemens AG
Siemens Corp
Original Assignee
Siemens AG
Siemens Corp
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 DE19732325617 external-priority patent/DE2325617C3/de
Application filed by Siemens AG, Siemens Corp filed Critical Siemens AG
Publication of FR2231014A1 publication Critical patent/FR2231014A1/fr
Application granted granted Critical
Publication of FR2231014B1 publication Critical patent/FR2231014B1/fr
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
    • 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
    • G01S13/74—Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems
    • G01S13/76—Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems wherein pulse-type signals are transmitted
    • G01S13/78—Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems wherein pulse-type signals are transmitted discriminating between different kinds of targets, e.g. IFF-radar, i.e. identification of friend or foe
    • G01S13/781—Secondary Surveillance Radar [SSR] in general
    • G01S13/784—Coders or decoders therefor; Degarbling systems; Defruiting systems
    • 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
    • G01S13/22—Systems for measuring distance only using transmission of interrupted, pulse modulated waves using irregular pulse repetition frequency
    • 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
    • G01S13/87—Combinations of radar systems, e.g. primary radar and secondary radar
    • G01S13/872—Combinations of primary radar and secondary radar

Landscapes

  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Radar Systems Or Details Thereof (AREA)
FR7417475A 1973-05-21 1974-05-20 Expired FR2231014B1 (enrdf_load_html_response)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19732325617 DE2325617C3 (de) 1973-05-21 Verfahren und Anordnung zur Unterscheidung synchroner und nichtsynchroner Sekundärradar-Antwortsignale auf durch Primärradar-Pulsfrequenz-Teilung abgeleitete Abfragesignale

Publications (2)

Publication Number Publication Date
FR2231014A1 true FR2231014A1 (enrdf_load_html_response) 1974-12-20
FR2231014B1 FR2231014B1 (enrdf_load_html_response) 1978-07-07

Family

ID=5881566

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7417475A Expired FR2231014B1 (enrdf_load_html_response) 1973-05-21 1974-05-20

Country Status (2)

Country Link
FR (1) FR2231014B1 (enrdf_load_html_response)
GB (1) GB1459266A (enrdf_load_html_response)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3267464A (en) * 1963-10-30 1966-08-16 Itt Rapid synchronous time interval detector
DE1257845B (de) * 1965-02-18 1968-01-04 Marconi Co Ltd Schaltungsanordnung zur verzoegerungsfreien Bildung einer frei waehlbaren Anzahl von Ausgangsimpulsen pro Zeiteinheit aus einer groesseren Anzahl von nacheinander ankommenden Eingangsimpulsen pro Zeiteinheit

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3267464A (en) * 1963-10-30 1966-08-16 Itt Rapid synchronous time interval detector
DE1257845B (de) * 1965-02-18 1968-01-04 Marconi Co Ltd Schaltungsanordnung zur verzoegerungsfreien Bildung einer frei waehlbaren Anzahl von Ausgangsimpulsen pro Zeiteinheit aus einer groesseren Anzahl von nacheinander ankommenden Eingangsimpulsen pro Zeiteinheit

Also Published As

Publication number Publication date
FR2231014B1 (enrdf_load_html_response) 1978-07-07
DE2325617B2 (de) 1976-12-16
DE2325617A1 (de) 1974-12-12
GB1459266A (en) 1976-12-22

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Legal Events

Date Code Title Description
ST Notification of lapse