DE68926021D1 - Gerät zur Hochfrequenz-Richtungsbestimmung - Google Patents

Gerät zur Hochfrequenz-Richtungsbestimmung

Info

Publication number
DE68926021D1
DE68926021D1 DE68926021T DE68926021T DE68926021D1 DE 68926021 D1 DE68926021 D1 DE 68926021D1 DE 68926021 T DE68926021 T DE 68926021T DE 68926021 T DE68926021 T DE 68926021T DE 68926021 D1 DE68926021 D1 DE 68926021D1
Authority
DE
Germany
Prior art keywords
direction determination
frequency direction
frequency
determination
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 - Fee Related
Application number
DE68926021T
Other languages
English (en)
Other versions
DE68926021T2 (de
Inventor
Carlton J Thorpe
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.)
Northrop Grumman Space and Mission Systems Corp
Original Assignee
TRW 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 TRW Inc filed Critical TRW Inc
Publication of DE68926021D1 publication Critical patent/DE68926021D1/de
Application granted granted Critical
Publication of DE68926021T2 publication Critical patent/DE68926021T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • 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
    • G01S3/46—Systems for determining direction or deviation from predetermined direction using antennas spaced apart and measuring phase or time difference between signals therefrom, i.e. path-difference systems
    • G01S3/48—Systems for determining direction or deviation from predetermined direction using antennas spaced apart and measuring phase or time difference between signals therefrom, i.e. path-difference systems the waves arriving at the antennas being continuous or intermittent and the phase difference of signals derived therefrom being measured

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)
  • Radar Systems Or Details Thereof (AREA)
DE1989626021 1988-10-31 1989-10-25 Gerät zur Hochfrequenz-Richtungsbestimmung Expired - Fee Related DE68926021T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US26507188A 1988-10-31 1988-10-31

Publications (2)

Publication Number Publication Date
DE68926021D1 true DE68926021D1 (de) 1996-04-25
DE68926021T2 DE68926021T2 (de) 1996-08-22

Family

ID=23008845

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1989626021 Expired - Fee Related DE68926021T2 (de) 1988-10-31 1989-10-25 Gerät zur Hochfrequenz-Richtungsbestimmung

Country Status (3)

Country Link
EP (1) EP0367487B1 (de)
JP (1) JP2634259B2 (de)
DE (1) DE68926021T2 (de)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5268695A (en) * 1992-10-06 1993-12-07 Trimble Navigation Limited Differential phase measurement through antenna multiplexing
DE19852454B4 (de) * 1997-12-08 2005-11-10 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Vorrichtung und Verfahren zum Verbessern einer Funkübertragung über eine Funkstrecke zwischen einem Sender und einem Empfänger
JP2002214318A (ja) * 2001-01-19 2002-07-31 Futaba Corp 到来波推定方式
US9137058B2 (en) 2008-07-17 2015-09-15 Nokia Technologies Oy Data packet processing for estimation of a direction towards a transmitter

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1273014B (de) * 1966-09-10 1968-07-18 Telefunken Patent Peilverfahren, bei dem die Phasendifferenz der Empfangsspannungen zweier oertlich getrennter Antennen bestimmt wird
US3813672A (en) * 1969-05-07 1974-05-28 W Weisser Automatically controlled digital vhf direction finder
JPS5234874Y2 (de) * 1975-09-22 1977-08-09
JPS5810417B2 (ja) * 1975-10-01 1983-02-25 群栄化学工業株式会社 センイゲンリヨウヨウノボラツクレジンノセイゾウホウ
JPS58144224A (ja) * 1982-02-19 1983-08-27 Mitsubishi Electric Corp 振動制御装置
JPS634152A (ja) * 1986-06-25 1988-01-09 株式会社ブリヂストン パネル
JPH056548Y2 (de) * 1986-08-18 1993-02-19
DE3639643A1 (de) * 1986-11-20 1988-05-26 Licentia Gmbh Interferometer-peilanordnung

Also Published As

Publication number Publication date
EP0367487B1 (de) 1996-03-20
EP0367487A2 (de) 1990-05-09
JPH02170075A (ja) 1990-06-29
DE68926021T2 (de) 1996-08-22
JP2634259B2 (ja) 1997-07-23
EP0367487A3 (de) 1991-07-17

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee