FR2275835A2 - Dispositif de localisation radio-electrique de mobiles - Google Patents

Dispositif de localisation radio-electrique de mobiles

Info

Publication number
FR2275835A2
FR2275835A2 FR7519472A FR7519472A FR2275835A2 FR 2275835 A2 FR2275835 A2 FR 2275835A2 FR 7519472 A FR7519472 A FR 7519472A FR 7519472 A FR7519472 A FR 7519472A FR 2275835 A2 FR2275835 A2 FR 2275835A2
Authority
FR
France
Prior art keywords
radio
location device
mobile location
electric mobile
electric
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
FR7519472A
Other languages
English (en)
French (fr)
Other versions
FR2275835B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html
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.)
Litchstreet Co
Original Assignee
Litchstreet Co
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 US481902A external-priority patent/US3921172A/en
Application filed by Litchstreet Co filed Critical Litchstreet Co
Publication of FR2275835A2 publication Critical patent/FR2275835A2/fr
Application granted granted Critical
Publication of FR2275835B1 publication Critical patent/FR2275835B1/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
    • G01S13/74—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
    • 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
    • G01S13/88—Radar or analogous systems specially adapted for specific applications
    • G01S13/93—Radar or analogous systems specially adapted for specific applications for anti-collision purposes
    • G01S13/933—Radar or analogous systems specially adapted for specific applications for anti-collision purposes of aircraft or spacecraft
    • 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
    • G01S5/00—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations
    • G01S5/02—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations using radio waves
    • G01S5/12—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations using radio waves by co-ordinating position lines of different shape, e.g. hyperbolic, circular, elliptical or radial

Landscapes

  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Electromagnetism (AREA)
  • Radar Systems Or Details Thereof (AREA)
FR7519472A 1971-09-15 1975-06-20 Dispositif de localisation radio-electrique de mobiles Granted FR2275835A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US18057871A 1971-09-15 1971-09-15
US481902A US3921172A (en) 1971-09-15 1974-06-21 Proximity indication with range and bearing measurements

Publications (2)

Publication Number Publication Date
FR2275835A2 true FR2275835A2 (fr) 1976-01-16
FR2275835B1 FR2275835B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1980-05-16

Family

ID=26876454

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7519472A Granted FR2275835A2 (fr) 1971-09-15 1975-06-20 Dispositif de localisation radio-electrique de mobiles

Country Status (3)

Country Link
DE (1) DE2527656A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
FR (1) FR2275835A2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
GB (1) GB1471246A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2281613A2 (fr) * 1971-09-15 1976-03-05 Litchstreet Co Dispositif de localisation radio-electrique de mobiles

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1146559A (en) * 1966-12-23 1969-03-26 Int Standard Electric Corp Bearing indication system for digital measurement of azimuth
FR2152977A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * 1971-09-15 1973-04-27 Litchford George

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1146559A (en) * 1966-12-23 1969-03-26 Int Standard Electric Corp Bearing indication system for digital measurement of azimuth
FR2152977A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * 1971-09-15 1973-04-27 Litchford George
US3757324A (en) * 1971-09-15 1973-09-04 Litchstreet Co Proximity indication with range and bearing measurements

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2281613A2 (fr) * 1971-09-15 1976-03-05 Litchstreet Co Dispositif de localisation radio-electrique de mobiles

Also Published As

Publication number Publication date
GB1471246A (en) 1977-04-21
DE2527656A1 (de) 1976-01-15
FR2275835B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1980-05-16

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Legal Events

Date Code Title Description
ST Notification of lapse