JPS55142259A - Displaying system of sonar signal - Google Patents

Displaying system of sonar signal

Info

Publication number
JPS55142259A
JPS55142259A JP4969779A JP4969779A JPS55142259A JP S55142259 A JPS55142259 A JP S55142259A JP 4969779 A JP4969779 A JP 4969779A JP 4969779 A JP4969779 A JP 4969779A JP S55142259 A JPS55142259 A JP S55142259A
Authority
JP
Japan
Prior art keywords
time
past
memory
certain time
certain
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
JP4969779A
Other languages
Japanese (ja)
Inventor
Toshio Chiba
Hisazumi Fukuoka
Tetsuo Fukuchi
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.)
Oki Electric Industry Co Ltd
Original Assignee
Oki Electric Industry 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 Oki Electric Industry Co Ltd filed Critical Oki Electric Industry Co Ltd
Priority to JP4969779A priority Critical patent/JPS55142259A/en
Publication of JPS55142259A publication Critical patent/JPS55142259A/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
    • G01S3/00—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received
    • G01S3/80—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received using ultrasonic, sonic or infrasonic waves
    • G01S3/84—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received using ultrasonic, sonic or infrasonic waves with indication presented on cathode-ray tubes

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (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 enable to watch the movement of a target constantly and to improve the weak signal detecting and watching capability of a sonar signal displaying system, by employing a cathode-ray tube display unit which has a signal watching capability equivalent to the signal displaying capability of a recorder. CONSTITUTION:A refresh memory 11 has a matrix structure consisting of lines and azimnth corresponding to the time from the present time to a certain time in the past or lines corresponding to the frequency. Data from a sonar on a certain azimnth or frequency at preset or a certain time in the past are stored in a cell of the memory 11. The contents of the memory are read out to be indicated on display panel 13 of a cathode-ray tube display unit in accordance with the passage of time from the present time to a certain time in the past. The memory 11 is updated by a command from a timer 12, and data on the present time to a certain time in the past are constantly indicated on the display panel 13. Thus, the movement of a target can be watched.
JP4969779A 1979-04-24 1979-04-24 Displaying system of sonar signal Pending JPS55142259A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4969779A JPS55142259A (en) 1979-04-24 1979-04-24 Displaying system of sonar signal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4969779A JPS55142259A (en) 1979-04-24 1979-04-24 Displaying system of sonar signal

Publications (1)

Publication Number Publication Date
JPS55142259A true JPS55142259A (en) 1980-11-06

Family

ID=12838362

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4969779A Pending JPS55142259A (en) 1979-04-24 1979-04-24 Displaying system of sonar signal

Country Status (1)

Country Link
JP (1) JPS55142259A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5872076A (en) * 1981-10-26 1983-04-28 Japan Radio Co Ltd Stereoscopical display system for submarine image

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5872076A (en) * 1981-10-26 1983-04-28 Japan Radio Co Ltd Stereoscopical display system for submarine image

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