JPS645655B2 - - Google Patents

Info

Publication number
JPS645655B2
JPS645655B2 JP74182A JP74182A JPS645655B2 JP S645655 B2 JPS645655 B2 JP S645655B2 JP 74182 A JP74182 A JP 74182A JP 74182 A JP74182 A JP 74182A JP S645655 B2 JPS645655 B2 JP S645655B2
Authority
JP
Japan
Prior art keywords
fish
sound pressure
power
amount
received sound
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
JP74182A
Other languages
English (en)
Japanese (ja)
Other versions
JPS58118975A (ja
Inventor
Shinichiro Kawaguchi
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.)
Japan Radio Co Ltd
Original Assignee
Japan Radio 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 Japan Radio Co Ltd filed Critical Japan Radio Co Ltd
Priority to JP74182A priority Critical patent/JPS58118975A/ja
Publication of JPS58118975A publication Critical patent/JPS58118975A/ja
Publication of JPS645655B2 publication Critical patent/JPS645655B2/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
    • G01S15/88—Sonar systems specially adapted for specific applications
    • G01S15/96—Sonar systems specially adapted for specific applications for locating fish

Landscapes

  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
JP74182A 1982-01-06 1982-01-06 魚群量測定方法 Granted JPS58118975A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP74182A JPS58118975A (ja) 1982-01-06 1982-01-06 魚群量測定方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP74182A JPS58118975A (ja) 1982-01-06 1982-01-06 魚群量測定方法

Publications (2)

Publication Number Publication Date
JPS58118975A JPS58118975A (ja) 1983-07-15
JPS645655B2 true JPS645655B2 (enExample) 1989-01-31

Family

ID=11482133

Family Applications (1)

Application Number Title Priority Date Filing Date
JP74182A Granted JPS58118975A (ja) 1982-01-06 1982-01-06 魚群量測定方法

Country Status (1)

Country Link
JP (1) JPS58118975A (enExample)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3930166B2 (ja) * 1998-11-10 2007-06-13 株式会社カイジョーソニック 計量魚群探知機
CN104536007B (zh) * 2014-05-09 2017-05-24 哈尔滨工程大学 一种基于多视角声学数据的鱼类识别方法

Also Published As

Publication number Publication date
JPS58118975A (ja) 1983-07-15

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