JPH0143916B2 - - Google Patents

Info

Publication number
JPH0143916B2
JPH0143916B2 JP56120983A JP12098381A JPH0143916B2 JP H0143916 B2 JPH0143916 B2 JP H0143916B2 JP 56120983 A JP56120983 A JP 56120983A JP 12098381 A JP12098381 A JP 12098381A JP H0143916 B2 JPH0143916 B2 JP H0143916B2
Authority
JP
Japan
Prior art keywords
signal
display
subtraction
gate
digital value
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
Application number
JP56120983A
Other languages
English (en)
Japanese (ja)
Other versions
JPS5821575A (ja
Inventor
Unhachi Machida
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.)
Koden Electronics Co Ltd
Original Assignee
Koden Electronics 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 Koden Electronics Co Ltd filed Critical Koden Electronics Co Ltd
Priority to JP12098381A priority Critical patent/JPS5821575A/ja
Publication of JPS5821575A publication Critical patent/JPS5821575A/ja
Publication of JPH0143916B2 publication Critical patent/JPH0143916B2/ja
Granted 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
    • G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
    • G01S7/52—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S15/00
    • G01S7/523—Details of pulse systems
    • G01S7/526—Receivers
    • G01S7/527—Extracting wanted echo signals

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
  • Radar Systems Or Details Thereof (AREA)
JP12098381A 1981-07-31 1981-07-31 反響探知装置 Granted JPS5821575A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12098381A JPS5821575A (ja) 1981-07-31 1981-07-31 反響探知装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12098381A JPS5821575A (ja) 1981-07-31 1981-07-31 反響探知装置

Publications (2)

Publication Number Publication Date
JPS5821575A JPS5821575A (ja) 1983-02-08
JPH0143916B2 true JPH0143916B2 (en]) 1989-09-25

Family

ID=14799872

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12098381A Granted JPS5821575A (ja) 1981-07-31 1981-07-31 反響探知装置

Country Status (1)

Country Link
JP (1) JPS5821575A (en])

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4491496B2 (ja) * 2002-03-29 2010-06-30 株式会社光電製作所 魚群探知機

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54145165A (en) * 1978-05-02 1979-11-13 Mitsubishi Heavy Ind Ltd Input signal detecting level setter

Also Published As

Publication number Publication date
JPS5821575A (ja) 1983-02-08

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