FR986963A - Perfectionnements aux dispositifs radioélectriques de guidage et d'atterrissage sans visibilité - Google Patents

Perfectionnements aux dispositifs radioélectriques de guidage et d'atterrissage sans visibilité

Info

Publication number
FR986963A
FR986963A FR986963DA FR986963A FR 986963 A FR986963 A FR 986963A FR 986963D A FR986963D A FR 986963DA FR 986963 A FR986963 A FR 986963A
Authority
FR
France
Prior art keywords
landing devices
blind landing
radio guidance
guidance
blind
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.)
Expired
Application number
Other languages
English (en)
French (fr)
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.)
Societe Francaise Radio Electrique
Original Assignee
Societe Francaise Radio Electrique
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 Societe Francaise Radio Electrique filed Critical Societe Francaise Radio Electrique
Application granted granted Critical
Publication of FR986963A publication Critical patent/FR986963A/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
    • 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
    • G01S1/08—Systems for determining direction or position line
    • G01S1/20—Systems for determining direction or position line using a comparison of transit time of synchronised signals transmitted from non-directional antennas or antenna systems spaced apart, i.e. path-difference systems
    • G01S1/22—Systems for determining direction or position line using a comparison of transit time of synchronised signals transmitted from non-directional antennas or antenna systems spaced apart, i.e. path-difference systems the synchronised signals being frequency modulations on carrier waves and the transit times being compared by measuring difference of instantaneous frequencies of received carrier waves
    • 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)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Traffic Control Systems (AREA)
FR986963D 1944-02-09 1943-12-17 Perfectionnements aux dispositifs radioélectriques de guidage et d'atterrissage sans visibilité Expired FR986963A (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR986963T 1944-02-09
FR90244X 1944-02-09

Publications (1)

Publication Number Publication Date
FR986963A true FR986963A (fr) 1951-08-07

Family

ID=26196420

Family Applications (1)

Application Number Title Priority Date Filing Date
FR986963D Expired FR986963A (fr) 1944-02-09 1943-12-17 Perfectionnements aux dispositifs radioélectriques de guidage et d'atterrissage sans visibilité

Country Status (3)

Country Link
BE (1) BE459287A (enrdf_load_stackoverflow)
CH (1) CH256262A (enrdf_load_stackoverflow)
FR (1) FR986963A (enrdf_load_stackoverflow)

Also Published As

Publication number Publication date
CH256262A (fr) 1948-08-15
BE459287A (enrdf_load_stackoverflow)

Similar Documents

Publication Publication Date Title
ES182279A1 (es) Sistemas de comunicación y detección de obstáculos
FR986963A (fr) Perfectionnements aux dispositifs radioélectriques de guidage et d'atterrissage sans visibilité
FR55713E (fr) Perfectionnements aux dispositifs radioélectriques de guidage et d'atterrissage sans visibilité
FR939408A (fr) Perfectionnements aux aériens ajustables
FR1017974A (fr) Perfectionnement aux hélicoptères
FR921452A (fr) Perfectionnement aux dispositifs de navigation et d'atterrissage sans visibilité
FR938208A (fr) Redresseurs et analogues
FR987451A (fr) Aériens radioélectriques
CA410909A (en) Extensible and flexible barricade
CA415820A (en) Throttling device
CA412104A (en) Lifting and/or holding device
CA410088A (en) Air purifying and circulating device
CA413637A (en) Window and car construction
FR920127A (fr) Perfectionnements aux hélicoptères
FR892867A (fr) Perfectionnement aux dispositifs de télémesure
CA415833A (en) Blind approach navigation device
CA413332A (en) Measuring and controlling apparatus
CA413482A (en) Measuring and control apparatus
CA410362A (en) Measuring and control apparatus
CA411360A (en) Object representation device
AU118732B2 (en) Improved air warining and distributing device
CA417413A (en) Typewriter and punching device
CA415859A (en) Necktie form turning device
CA414801A (en) Aeroplane control device
CA416081A (en) Aeroplane control device