JPS55113972A - Fish detector for dragnet - Google Patents

Fish detector for dragnet

Info

Publication number
JPS55113972A
JPS55113972A JP2136679A JP2136679A JPS55113972A JP S55113972 A JPS55113972 A JP S55113972A JP 2136679 A JP2136679 A JP 2136679A JP 2136679 A JP2136679 A JP 2136679A JP S55113972 A JPS55113972 A JP S55113972A
Authority
JP
Japan
Prior art keywords
marine bottom
time
ground rope
rope
dragnet
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
JP2136679A
Other languages
English (en)
Japanese (ja)
Other versions
JPS6210391B2 (enrdf_load_stackoverflow
Inventor
Fukutaro Takahashi
Kyozo Yamatani
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.)
Kaijo Denki Co Ltd
Marine Instr Co Ltd
Original Assignee
Kaijo Denki Co Ltd
Marine Instr 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 Kaijo Denki Co Ltd, Marine Instr Co Ltd filed Critical Kaijo Denki Co Ltd
Priority to JP2136679A priority Critical patent/JPS55113972A/ja
Publication of JPS55113972A publication Critical patent/JPS55113972A/ja
Publication of JPS6210391B2 publication Critical patent/JPS6210391B2/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)
JP2136679A 1979-02-27 1979-02-27 Fish detector for dragnet Granted JPS55113972A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2136679A JPS55113972A (en) 1979-02-27 1979-02-27 Fish detector for dragnet

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2136679A JPS55113972A (en) 1979-02-27 1979-02-27 Fish detector for dragnet

Publications (2)

Publication Number Publication Date
JPS55113972A true JPS55113972A (en) 1980-09-02
JPS6210391B2 JPS6210391B2 (enrdf_load_stackoverflow) 1987-03-05

Family

ID=12053089

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2136679A Granted JPS55113972A (en) 1979-02-27 1979-02-27 Fish detector for dragnet

Country Status (1)

Country Link
JP (1) JPS55113972A (enrdf_load_stackoverflow)

Also Published As

Publication number Publication date
JPS6210391B2 (enrdf_load_stackoverflow) 1987-03-05

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