JPS5590873A - Detection-indication system for scanning sonar - Google Patents

Detection-indication system for scanning sonar

Info

Publication number
JPS5590873A
JPS5590873A JP16519878A JP16519878A JPS5590873A JP S5590873 A JPS5590873 A JP S5590873A JP 16519878 A JP16519878 A JP 16519878A JP 16519878 A JP16519878 A JP 16519878A JP S5590873 A JPS5590873 A JP S5590873A
Authority
JP
Japan
Prior art keywords
terms
information
pulse
shoal
sea
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.)
Pending
Application number
JP16519878A
Other languages
Japanese (ja)
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 JP16519878A priority Critical patent/JPS5590873A/en
Publication of JPS5590873A publication Critical patent/JPS5590873A/en
Pending 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

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)

Abstract

PURPOSE:To easily persue a shoal of fish and easily determine the net casting time, by simultaneously displaying on one cathode-ray tube information on an object in the sea-water in terms of direction and horizontal distance in connection therewith, and information on the object in terms of position thereof in a perpendicular section of the sea-water. 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. A gate circuit 23 is opened by the time width of the pulse P9 to generate an output P10 having a pulse width in proportion to the level of a hold voltage of a hold circuit 20. An image signal change-over circuit 24 is switched with an output from a change-over pulse generating circuit 17. Thus, information on a shoal of fish in terms of direction and horizontal distance in connection therewith and information the shoal of fish in terms of position thereof in a perpendicular section of the sea-water is displayed in a cathode-ray tube 12 at once.
JP16519878A 1978-12-28 1978-12-28 Detection-indication system for scanning sonar Pending JPS5590873A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16519878A JPS5590873A (en) 1978-12-28 1978-12-28 Detection-indication system for scanning sonar

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16519878A JPS5590873A (en) 1978-12-28 1978-12-28 Detection-indication system for scanning sonar

Publications (1)

Publication Number Publication Date
JPS5590873A true JPS5590873A (en) 1980-07-09

Family

ID=15807692

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16519878A Pending JPS5590873A (en) 1978-12-28 1978-12-28 Detection-indication system for scanning sonar

Country Status (1)

Country Link
JP (1) JPS5590873A (en)

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