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JPS577574A - Object discriminator - Google Patents

Object discriminator

Info

Publication number
JPS577574A
JPS577574A JP8172380A JP8172380A JPS577574A JP S577574 A JPS577574 A JP S577574A JP 8172380 A JP8172380 A JP 8172380A JP 8172380 A JP8172380 A JP 8172380A JP S577574 A JPS577574 A JP S577574A
Authority
JP
Japan
Prior art keywords
antenna
reflecting member
reflected
reception
antenna system
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.)
Granted
Application number
JP8172380A
Other languages
Japanese (ja)
Other versions
JPS5931016B2 (en
Inventor
Mitsuzumi Ooyama
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric Co Ltd
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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP55081723A priority Critical patent/JPS5931016B2/en
Publication of JPS577574A publication Critical patent/JPS577574A/en
Publication of JPS5931016B2 publication Critical patent/JPS5931016B2/en
Expired 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
    • 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
    • G01S13/76—Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems wherein pulse-type signals are transmitted
    • G01S13/762—Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems wherein pulse-type signals are transmitted with special measures concerning the radiation pattern, e.g. S.L.S.

Landscapes

  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Details Of Aerials (AREA)
  • Radar Systems Or Details Thereof (AREA)

Abstract

PURPOSE:To enable response signals to be discriminated without any hindrance, by providing a reflecting member near the opening surface of the antenna for both transmission and reception of an interrogator-responder in order to send a portion of the electric power radiated from the antenna back to the antenna side. CONSTITUTION:A reflecting member 32 made of metal is provided at a part of an antenna 15, near an opening surface 31 thereof. Here, the electric power sent to the antenna system from a circulator 25 is reflected from the antenna system by a quantity e1 determined according to the standing-wave ratio of th antenna system. In addition, if the electric reflected from the reflecting member 32 on the front surface of the antenna is represented by e2, e2 can be set so as to have the same amplitude as e1 and an inverted polarity by regulating the size of the reflecting member 32 and th connecting position between said member 32 and the antenna 15. Accordingly, a resultant power, e1+e2=0, can obtained at the reception-side output of the circulator 25. By such a constitution, it is possible to sufficiently restrain the power from being reflected from the antenna system and to prevent the saturation of the mixer in the reception system. Accordingly, response signals can be discriminated without any hindrance.
JP55081723A 1980-06-17 1980-06-17 Object identification device Expired JPS5931016B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55081723A JPS5931016B2 (en) 1980-06-17 1980-06-17 Object identification device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55081723A JPS5931016B2 (en) 1980-06-17 1980-06-17 Object identification device

Publications (2)

Publication Number Publication Date
JPS577574A true JPS577574A (en) 1982-01-14
JPS5931016B2 JPS5931016B2 (en) 1984-07-30

Family

ID=13754325

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55081723A Expired JPS5931016B2 (en) 1980-06-17 1980-06-17 Object identification device

Country Status (1)

Country Link
JP (1) JPS5931016B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04217441A (en) * 1990-02-14 1992-08-07 Artur Fischer Gmbh Manufacture of drill hole provided with under-cut

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61253418A (en) * 1985-05-02 1986-11-11 Kawasaki Heavy Ind Ltd Encoder
JPS6297917U (en) * 1985-12-09 1987-06-22
JPS62142219A (en) * 1985-12-17 1987-06-25 Nippon Gakki Seizo Kk Displacement detecting device for encoder
JPS62142221A (en) * 1985-12-17 1987-06-25 Nippon Gakki Seizo Kk Displacement detecting device for encoder
JPH0567490U (en) * 1992-12-24 1993-09-07 ファナック株式会社 Industrial robot

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04217441A (en) * 1990-02-14 1992-08-07 Artur Fischer Gmbh Manufacture of drill hole provided with under-cut

Also Published As

Publication number Publication date
JPS5931016B2 (en) 1984-07-30

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