JPS60114782A - 漁網着底検出方法 - Google Patents

漁網着底検出方法

Info

Publication number
JPS60114782A
JPS60114782A JP22212083A JP22212083A JPS60114782A JP S60114782 A JPS60114782 A JP S60114782A JP 22212083 A JP22212083 A JP 22212083A JP 22212083 A JP22212083 A JP 22212083A JP S60114782 A JPS60114782 A JP S60114782A
Authority
JP
Japan
Prior art keywords
fishing net
signal
noise
time
detecting
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
JP22212083A
Other languages
English (en)
Japanese (ja)
Other versions
JPH041876B2 (enrdf_load_stackoverflow
Inventor
Kyozo Yamatani
山谷　恭三
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 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 true JPS60114782A (ja) 1985-06-21
JPH041876B2 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)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005072520A1 (en) * 2004-02-02 2005-08-11 Henning Skjold-Larsen Position monitoring with regard to bottom contact

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005072520A1 (en) * 2004-02-02 2005-08-11 Henning Skjold-Larsen Position monitoring with regard to bottom contact
GB2425031A (en) * 2004-02-02 2006-10-18 Henning Skjold-Larsen Position Monitoring With Regard To Bottom Contact
GB2425031B (en) * 2004-02-02 2008-08-27 Henning Skjold-Larsen Position Monitoring With Regard To Bottom Contact

Also Published As

Publication number Publication date
JPH041876B2 (enrdf_load_stackoverflow) 1992-01-14

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