JPWO2021132432A1 - - Google Patents

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Publication number
JPWO2021132432A1
JPWO2021132432A1 JP2021567594A JP2021567594A JPWO2021132432A1 JP WO2021132432 A1 JPWO2021132432 A1 JP WO2021132432A1 JP 2021567594 A JP2021567594 A JP 2021567594A JP 2021567594 A JP2021567594 A JP 2021567594A JP WO2021132432 A1 JPWO2021132432 A1 JP WO2021132432A1
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JP
Japan
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.)
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Application number
JP2021567594A
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Japanese (ja)
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JP7312992B2 (en
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Publication of JPWO2021132432A1 publication Critical patent/JPWO2021132432A1/ja
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Publication of JP7312992B2 publication Critical patent/JP7312992B2/en
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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
    • G01S3/28—Systems for determining direction or deviation from predetermined direction using amplitude comparison of signals derived simultaneously from receiving antennas or antenna systems having differently-oriented directivity characteristics
    • G01S3/32—Systems for determining direction or deviation from predetermined direction using amplitude comparison of signals derived simultaneously from receiving antennas or antenna systems having differently-oriented directivity characteristics derived from different combinations of signals from separate antennas, e.g. comparing sum with difference

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Radio Transmission System (AREA)
JP2021567594A 2019-12-27 2020-12-24 Estimation system, receiving system, control system, estimation method and program Active JP7312992B2 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2019239865 2019-12-27
JP2019239865 2019-12-27
PCT/JP2020/048355 WO2021132432A1 (en) 2019-12-27 2020-12-24 Estimation system, reception system, control system, estimation method, and program

Publications (2)

Publication Number Publication Date
JPWO2021132432A1 true JPWO2021132432A1 (en) 2021-07-01
JP7312992B2 JP7312992B2 (en) 2023-07-24

Family

ID=76574335

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2021567594A Active JP7312992B2 (en) 2019-12-27 2020-12-24 Estimation system, receiving system, control system, estimation method and program

Country Status (2)

Country Link
JP (1) JP7312992B2 (en)
WO (1) WO2021132432A1 (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06130138A (en) * 1992-10-16 1994-05-13 Tokimec Inc Antenna for measuring radio wave incoming direction/ polarization, radio wave incoming direction/polarization measuring equipment and antenna deflector
JP2608559B2 (en) * 1987-05-22 1997-05-07 日本放送協会 Radio arrival direction detection method
US20040160364A1 (en) * 2002-10-29 2004-08-19 Zvi Regev Digital instantaneous direction finding system
JP2017216567A (en) * 2016-05-31 2017-12-07 国立大学法人岩手大学 Beacon device, direction estimation method using beacon device, position estimation method and communication terminal unit

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6467005A (en) * 1987-09-07 1989-03-13 Nippon Telegraph & Telephone Mobile communication base station antenna system

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2608559B2 (en) * 1987-05-22 1997-05-07 日本放送協会 Radio arrival direction detection method
JPH06130138A (en) * 1992-10-16 1994-05-13 Tokimec Inc Antenna for measuring radio wave incoming direction/ polarization, radio wave incoming direction/polarization measuring equipment and antenna deflector
US20040160364A1 (en) * 2002-10-29 2004-08-19 Zvi Regev Digital instantaneous direction finding system
JP2017216567A (en) * 2016-05-31 2017-12-07 国立大学法人岩手大学 Beacon device, direction estimation method using beacon device, position estimation method and communication terminal unit

Also Published As

Publication number Publication date
WO2021132432A1 (en) 2021-07-01
JP7312992B2 (en) 2023-07-24

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