FI794045A - Homodyn-oeverfoeringssystem - Google Patents

Homodyn-oeverfoeringssystem

Info

Publication number
FI794045A
FI794045A FI794045A FI794045A FI794045A FI 794045 A FI794045 A FI 794045A FI 794045 A FI794045 A FI 794045A FI 794045 A FI794045 A FI 794045A FI 794045 A FI794045 A FI 794045A
Authority
FI
Finland
Prior art keywords
oeverfoeringssystem
homodyn
Prior art date
Application number
FI794045A
Other languages
English (en)
Inventor
Wilhelm Grafinger
Original Assignee
Siemens Ag
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 Siemens Ag filed Critical Siemens Ag
Publication of FI794045A publication Critical patent/FI794045A/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
    • 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
    • G01S13/74—Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L25/00—Recording or indicating positions or identities of vehicles or trains or setting of track apparatus
    • B61L25/02—Indicating or recording positions or identities of vehicles or trains
    • B61L25/04—Indicating or recording train identities
    • B61L25/045—Indicating or recording train identities using reradiating tags

Landscapes

  • Engineering & Computer Science (AREA)
  • Remote Sensing (AREA)
  • Radar, Positioning & Navigation (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Radar Systems Or Details Thereof (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Dc Digital Transmission (AREA)
  • Optical Communication System (AREA)
  • Silicon Polymers (AREA)
  • Semiconductor Lasers (AREA)
FI794045A 1978-12-22 1979-12-21 Homodyn-oeverfoeringssystem FI794045A (fi)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2855808A DE2855808B1 (de) 1978-12-22 1978-12-22 Homodyn-UEbertragungssystem mit Zweiseitenband-Reflexionsfaktor-Modulator im Antwortgeraet

Publications (1)

Publication Number Publication Date
FI794045A true FI794045A (fi) 1980-06-23

Family

ID=6058175

Family Applications (1)

Application Number Title Priority Date Filing Date
FI794045A FI794045A (fi) 1978-12-22 1979-12-21 Homodyn-oeverfoeringssystem

Country Status (8)

Country Link
EP (1) EP0012917A1 (fi)
JP (1) JPS5587066A (fi)
AU (1) AU5412479A (fi)
DE (1) DE2855808B1 (fi)
DK (1) DK551779A (fi)
ES (1) ES487211A1 (fi)
FI (1) FI794045A (fi)
NO (1) NO794107L (fi)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4739328A (en) * 1986-07-14 1988-04-19 Amtech Corporation System for identifying particular objects
JP2561534B2 (ja) * 1989-04-03 1996-12-11 山武ハネウエル株式会社 位相変調された受信信号の復調装置
JP2655127B2 (ja) * 1995-03-11 1997-09-17 日本電気株式会社 Ｆｍｃｗレーダ装置
AT501055B8 (de) * 2005-04-07 2007-02-15 Univ Graz Tech Verfahren zur demodulation und lesegerät zur auswertung lastmodulierter signale
GB0808010D0 (en) * 2008-05-02 2008-06-11 Univ Belfast Retrodirective antenna systems
GB0811635D0 (en) * 2008-06-25 2008-07-30 Univ Belfast Object identification system and method

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1500289A (en) * 1974-06-03 1978-02-08 Rca Corp Homodyne communication system
US4075632A (en) * 1974-08-27 1978-02-21 The United States Of America As Represented By The United States Department Of Energy Interrogation, and detection system

Also Published As

Publication number Publication date
EP0012917A1 (de) 1980-07-09
DK551779A (da) 1980-06-23
NO794107L (no) 1980-06-24
ES487211A1 (es) 1980-09-16
AU5412479A (en) 1980-06-26
JPS5587066A (en) 1980-07-01
DE2855808B1 (de) 1980-06-12

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Legal Events

Date Code Title Description
FA Application withdrawn

Owner name: SIEMENS AKTIENGESELLSCHAFT