GB1302923A - - Google Patents

Info

Publication number
GB1302923A
GB1302923A GB616570A GB616570A GB1302923A GB 1302923 A GB1302923 A GB 1302923A GB 616570 A GB616570 A GB 616570A GB 616570 A GB616570 A GB 616570A GB 1302923 A GB1302923 A GB 1302923A
Authority
GB
United Kingdom
Prior art keywords
time
code
pulse
signals
during
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
GB616570A
Other languages
English (en)
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 filed Critical
Publication of GB1302923A publication Critical patent/GB1302923A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
    • H01Q3/26—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture
    • 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
    • G01S13/42—Simultaneous measurement of distance and other co-ordinates
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q25/00—Antennas or antenna systems providing at least two radiating patterns
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
    • H01Q3/26—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture
    • H01Q3/30—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture varying the relative phase between the radiating elements of an array
    • H01Q3/34—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture varying the relative phase between the radiating elements of an array by electrical means
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/02—Arrangements for detecting or preventing errors in the information received by diversity reception
    • H04L1/06—Arrangements for detecting or preventing errors in the information received by diversity reception using space diversity
    • H04L1/0618—Space-time coding

Landscapes

  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Radar Systems Or Details Thereof (AREA)
GB616570A 1969-02-19 1970-02-09 Expired GB1302923A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR6904137A FR2061503B1 (fr) 1969-02-19 1969-02-19

Publications (1)

Publication Number Publication Date
GB1302923A true GB1302923A (fr) 1973-01-10

Family

ID=9029310

Family Applications (1)

Application Number Title Priority Date Filing Date
GB616570A Expired GB1302923A (fr) 1969-02-19 1970-02-09

Country Status (4)

Country Link
DE (1) DE2007228B2 (fr)
FR (1) FR2061503B1 (fr)
GB (1) GB1302923A (fr)
NL (1) NL7001494A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0086765A1 (fr) * 1982-02-15 1983-08-24 SAAB-SCANIA Aktiebolag Méthode et appareil de surveillance par radar

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3798645A (en) * 1970-08-28 1974-03-19 Hazeltine Corp Angular position determining systems using time scanned arrays
GB1515486A (en) * 1977-03-08 1978-06-28 Standard Telephones Cables Ltd Multiple beam receiving array signal processor

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0086765A1 (fr) * 1982-02-15 1983-08-24 SAAB-SCANIA Aktiebolag Méthode et appareil de surveillance par radar
US4665400A (en) * 1982-02-15 1987-05-12 Toerby Arne S Method and apparatus for radar surveillance
WO1988004062A1 (fr) * 1982-02-15 1988-06-02 Toerby Arne Sigvard Procede et appareil pour surveillance au radar

Also Published As

Publication number Publication date
DE2007228B2 (de) 1972-04-13
NL7001494A (fr) 1970-08-21
FR2061503B1 (fr) 1974-05-24
DE2007228A1 (de) 1970-09-10
FR2061503A1 (fr) 1971-06-25

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee