JPH041876B2 - - Google Patents

Info

Publication number
JPH041876B2
JPH041876B2 JP22212083A JP22212083A JPH041876B2 JP H041876 B2 JPH041876 B2 JP H041876B2 JP 22212083 A JP22212083 A JP 22212083A JP 22212083 A JP22212083 A JP 22212083A JP H041876 B2 JPH041876 B2 JP H041876B2
Authority
JP
Japan
Prior art keywords
signal
fishing net
receiving
fishing
seabed
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
JP22212083A
Other languages
English (en)
Japanese (ja)
Other versions
JPS60114782A (ja
Inventor
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 Corp
Original Assignee
Kaijo Corp
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 Corp filed Critical Kaijo Corp
Priority to JP22212083A priority Critical patent/JPS60114782A/ja
Publication of JPS60114782A publication Critical patent/JPS60114782A/ja
Publication of JPH041876B2 publication Critical patent/JPH041876B2/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
    • G01S15/00—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems
    • G01S15/02—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems using reflection of acoustic waves
    • G01S15/06—Systems determining the position data of a target
    • G01S15/08—Systems for measuring distance only
    • G01S15/10—Systems for measuring distance only using transmission of interrupted, pulse-modulated waves
    • G01S15/101—Particularities of the measurement of distance

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Acoustics & Sound (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • General Physics & Mathematics (AREA)
  • Length Measuring Devices Characterised By Use Of Acoustic Means (AREA)
  • Testing Or Calibration Of Command Recording Devices (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
  • Mechanical Means For Catching Fish (AREA)
JP22212083A 1983-11-28 1983-11-28 漁網着底検出方法 Granted JPS60114782A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP22212083A JPS60114782A (ja) 1983-11-28 1983-11-28 漁網着底検出方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP22212083A JPS60114782A (ja) 1983-11-28 1983-11-28 漁網着底検出方法

Publications (2)

Publication Number Publication Date
JPS60114782A JPS60114782A (ja) 1985-06-21
JPH041876B2 true JPH041876B2 (enrdf_load_stackoverflow) 1992-01-14

Family

ID=16777468

Family Applications (1)

Application Number Title Priority Date Filing Date
JP22212083A Granted JPS60114782A (ja) 1983-11-28 1983-11-28 漁網着底検出方法

Country Status (1)

Country Link
JP (1) JPS60114782A (enrdf_load_stackoverflow)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NO20040464L (no) * 2004-02-02 2005-08-03 Skjold-Larsen Henning Fremgangsmate og anordning for posisjonsovervaking

Also Published As

Publication number Publication date
JPS60114782A (ja) 1985-06-21

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