FI974102A - Menetelmä ja älykäs antennikeilojen muodostusjärjestelmä, jossa on parannetun signaalilaadun omaavat tietoliikenneyhteydet - Google Patents

Menetelmä ja älykäs antennikeilojen muodostusjärjestelmä, jossa on parannetun signaalilaadun omaavat tietoliikenneyhteydet Download PDF

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Publication number
FI974102A
FI974102A FI974102A FI974102A FI974102A FI 974102 A FI974102 A FI 974102A FI 974102 A FI974102 A FI 974102A FI 974102 A FI974102 A FI 974102A FI 974102 A FI974102 A FI 974102A
Authority
FI
Finland
Prior art keywords
procedure
signal quality
data communications
improved signal
shaping system
Prior art date
Application number
FI974102A
Other languages
English (en)
Swedish (sv)
Other versions
FI974102A0 (fi
Inventor
Randy Lee Turcotte
Stephen Chih-Hung Ma
Sergio Aguirre
Original Assignee
Motorola Inc
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 Motorola Inc filed Critical Motorola Inc
Publication of FI974102A0 publication Critical patent/FI974102A0/fi
Publication of FI974102A publication Critical patent/FI974102A/fi

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
    • G01S3/00—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received
    • G01S3/02—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received using radio waves
    • G01S3/14—Systems for determining direction or deviation from predetermined direction
    • G01S3/38—Systems for determining direction or deviation from predetermined direction using adjustment of real or effective orientation of directivity characteristic of an antenna or an antenna system to give a desired condition of signal derived from that antenna or antenna system, e.g. to give a maximum or minimum signal
    • G01S3/42—Systems for determining direction or deviation from predetermined direction using adjustment of real or effective orientation of directivity characteristic of an antenna or an antenna system to give a desired condition of signal derived from that antenna or antenna system, e.g. to give a maximum or minimum signal the desired condition being maintained automatically
    • 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
    • H01Q3/2605—Array of radiating elements provided with a feedback control over the element weights, e.g. adaptive arrays
    • 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
    • G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
    • G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
    • G01S7/28—Details of pulse systems
    • G01S7/2813—Means providing a modification of the radiation pattern for cancelling noise, clutter or interfering signals, e.g. side lobe suppression, side lobe blanking, null-steering arrays
    • 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
    • G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
    • G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
    • G01S7/36—Means for anti-jamming, e.g. ECCM, i.e. electronic counter-counter measures

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Radio Relay Systems (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)
  • Transceivers (AREA)
  • Radio Transmission System (AREA)
  • Optical Communication System (AREA)
FI974102A 1996-10-30 1997-10-30 Menetelmä ja älykäs antennikeilojen muodostusjärjestelmä, jossa on parannetun signaalilaadun omaavat tietoliikenneyhteydet FI974102A (fi)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US08/739,645 US5856804A (en) 1996-10-30 1996-10-30 Method and intelligent digital beam forming system with improved signal quality communications

Publications (2)

Publication Number Publication Date
FI974102A0 FI974102A0 (fi) 1997-10-30
FI974102A true FI974102A (fi) 1998-05-01

Family

ID=24973221

Family Applications (1)

Application Number Title Priority Date Filing Date
FI974102A FI974102A (fi) 1996-10-30 1997-10-30 Menetelmä ja älykäs antennikeilojen muodostusjärjestelmä, jossa on parannetun signaalilaadun omaavat tietoliikenneyhteydet

Country Status (10)

Country Link
US (1) US5856804A (fi)
JP (1) JPH10145260A (fi)
CA (1) CA2217354A1 (fi)
DE (1) DE19746774A1 (fi)
FI (1) FI974102A (fi)
FR (1) FR2755330A1 (fi)
GB (1) GB2318914B (fi)
IT (1) IT1295416B1 (fi)
SE (1) SE520194C2 (fi)
SG (1) SG60124A1 (fi)

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Also Published As

Publication number Publication date
FR2755330A1 (fr) 1998-05-01
GB9719331D0 (en) 1997-11-12
JPH10145260A (ja) 1998-05-29
SE9703934D0 (sv) 1997-10-29
SG60124A1 (en) 1999-02-22
DE19746774A1 (de) 1998-05-07
GB2318914B (en) 2001-05-09
ITRM970603A1 (it) 1999-04-08
US5856804A (en) 1999-01-05
CA2217354A1 (en) 1998-04-30
GB2318914A (en) 1998-05-06
SE9703934L (sv) 1998-05-01
IT1295416B1 (it) 1999-05-12
SE520194C2 (sv) 2003-06-10
FI974102A0 (fi) 1997-10-30

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