JPS5590872A - Detecting-indication system for scanning sonar - Google Patents

Detecting-indication system for scanning sonar

Info

Publication number
JPS5590872A
JPS5590872A JP16519778A JP16519778A JPS5590872A JP S5590872 A JPS5590872 A JP S5590872A JP 16519778 A JP16519778 A JP 16519778A JP 16519778 A JP16519778 A JP 16519778A JP S5590872 A JPS5590872 A JP S5590872A
Authority
JP
Japan
Prior art keywords
shoal
fish
circuit
pulse
ray tube
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
JP16519778A
Other languages
Japanese (ja)
Other versions
JPS618952B2 (en
Inventor
Fukutaro Takahashi
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 JP16519778A priority Critical patent/JPS5590872A/en
Publication of JPS5590872A publication Critical patent/JPS5590872A/en
Publication of JPS618952B2 publication Critical patent/JPS618952B2/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
    • G01S7/56—Display arrangements
    • G01S7/62—Cathode-ray tube displays
    • G01S7/6281—Composite displays, e.g. split-screen, multiple images

Abstract

PURPOSE:To improve the detection capability of a sonar by furnishing the sonar with an ability to indicate information on a shoal of fish in terms of direction and distance in connection therewith on one of two divisions of an indication surface of an indicator cathode-ray tube, and information on the shoal of fish in terms of position thereof in a perpendicular section of the sea-water on the other division of the mentioned indication surface. CONSTITUTION:Two pulses are generated every one spiral sweep by utilizing as a synchronizing signal an output from a sweep signal generating circuit 2. A pulse P9 is generated from these pulses, and a gate circuit 20 is opened by the time width of the pulse P9 to generate a pulse P10, which is then applied to a cathode-ray tube 13 through an image signal change-over circuit 14. A signal from a hold circuit 17 instead of a reception detection signal P6 from an amplifier circuit 11 is applied from the image signal change-over circuit 14 to the cathode-ray tube 13. As a result, a bright line, the length of which represents the intensity of an echo from a shoal of fish appears on a line indicating an angle of depression. Thus, the position of the shoal of fish in a perpendicular section of the sea-water is displayed.
JP16519778A 1978-12-28 1978-12-28 Detecting-indication system for scanning sonar Granted JPS5590872A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16519778A JPS5590872A (en) 1978-12-28 1978-12-28 Detecting-indication system for scanning sonar

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16519778A JPS5590872A (en) 1978-12-28 1978-12-28 Detecting-indication system for scanning sonar

Publications (2)

Publication Number Publication Date
JPS5590872A true JPS5590872A (en) 1980-07-09
JPS618952B2 JPS618952B2 (en) 1986-03-18

Family

ID=15807672

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16519778A Granted JPS5590872A (en) 1978-12-28 1978-12-28 Detecting-indication system for scanning sonar

Country Status (1)

Country Link
JP (1) JPS5590872A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61222399A (en) * 1985-03-27 1986-10-02 Furuno Electric Co Ltd Wave transmitter-receiver

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62193676U (en) * 1986-05-30 1987-12-09
JPH0443978Y2 (en) * 1986-07-26 1992-10-16
JPH0517816Y2 (en) * 1987-03-24 1993-05-12

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61222399A (en) * 1985-03-27 1986-10-02 Furuno Electric Co Ltd Wave transmitter-receiver

Also Published As

Publication number Publication date
JPS618952B2 (en) 1986-03-18

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