FR944347A - Radio navigation systems - Google Patents

Radio navigation systems

Info

Publication number: FR944347A
Authority: FR; France
Prior art keywords: navigation systems; radio navigation; radio; systems; navigation
Prior art date: 1944-05-01
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.): Expired

Application number

Other languages

Inventor

Henri Gaston Busignies

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.)

International Standard Electric Corp

Original Assignee

International Standard Electric 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.)

1944-05-01

Filing date

1947-02-22

Publication date

1949-04-01

1947-02-22 Application filed by International Standard Electric Corp filed Critical International Standard Electric Corp

1949-04-01 Application granted granted Critical

1949-04-01 Publication of FR944347A publication Critical patent/FR944347A/en

Status Expired legal-status Critical Current

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
- 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
- G01S1/00—Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith
- G01S1/02—Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith using radio waves

Landscapes

Engineering & Computer Science (AREA)
Radar, Positioning & Navigation (AREA)
Remote Sensing (AREA)
Computer Networks & Wireless Communication (AREA)
Physics & Mathematics (AREA)
General Physics & Mathematics (AREA)
Mobile Radio Communication Systems (AREA)
Radio Relay Systems (AREA)

FR944347D 1944-05-01 1947-02-22 Radio navigation systems Expired FR944347A (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
US591041XA	1944-05-01	1944-05-01

Publications (1)

Publication Number	Publication Date
FR944347A true FR944347A (en)	1949-04-01

Family

ID=22020880

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
FR944347D Expired FR944347A (en)	1944-05-01	1947-02-22	Radio navigation systems

Country Status (3)

Country	Link
BE (1)	BE473177A (en)
FR (1)	FR944347A (en)
GB (1)	GB591041A (en)

0
- BE BE473177D patent/BE473177A/xx unknown
1945
- 1945-04-27 GB GB10725/45A patent/GB591041A/en not_active Expired
1947
- 1947-02-22 FR FR944347D patent/FR944347A/en not_active Expired

Also Published As

Publication number	Publication date
GB591041A (en)	1947-08-05
BE473177A (en)

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