JPS57182608A - Display device of sea bottom shape - Google Patents

Display device of sea bottom shape

Info

Publication number
JPS57182608A
JPS57182608A JP6769881A JP6769881A JPS57182608A JP S57182608 A JPS57182608 A JP S57182608A JP 6769881 A JP6769881 A JP 6769881A JP 6769881 A JP6769881 A JP 6769881A JP S57182608 A JPS57182608 A JP S57182608A
Authority
JP
Japan
Prior art keywords
circuit
receivers
display
pairs
bottom shape
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
JP6769881A
Other languages
Japanese (ja)
Inventor
Isoichi Tanaka
Takeshi Kato
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.)
KOUDEN SEISAKUSHO KK
Koden Electronics Co Ltd
Original Assignee
KOUDEN SEISAKUSHO KK
Koden Electronics 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 KOUDEN SEISAKUSHO KK, Koden Electronics Co Ltd filed Critical KOUDEN SEISAKUSHO KK
Priority to JP6769881A priority Critical patent/JPS57182608A/en
Publication of JPS57182608A publication Critical patent/JPS57182608A/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
    • G01S15/00—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems
    • G01S15/88—Sonar systems specially adapted for specific applications
    • G01S15/89—Sonar systems specially adapted for specific applications for mapping or imaging

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)
  • Length Measuring Devices Characterised By Use Of Acoustic Means (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)

Abstract

PURPOSE:To display a sea bottom shape so as to be easy to see, by rotating plural pairs of ultrasonic transmitters and receivers at a speed corresponding to a display distance, and displaying a receiving echo in the form of PPI by means of digital processing and D/A conversion, etc. CONSTITUTION:Plural, for instance, 2 pairs or so of ultrasonic transmitters and receivers 301, 302 of a transmitting and receiving part 1 are rotated at a speed decided in accordance with horizontal direction width beta of an ultrasonic beam, and a display distance L, by setting a vertical shaft to its axis by a variable speed motor 4 whose feedback is controlled by a storage controlling circuit 5 through a distance signal circuit 14 of a display part 2. Subsequently, a receiving echo by the pairs of transmitters and receivers 301, 302 is digitally processed, and is stored in a main storing circuit 32 through substoring circuits 29, 30. These stored contents are read out by synchronizing with a transmitting trigger by the circuit 5, deflection of an electronic beam of a CRT 36 is controlled through a D/A converter 33 and a color matrix circuit 34, and a sea bottom shape is displayed in the form of PPO so as to be easy to see.
JP6769881A 1981-05-07 1981-05-07 Display device of sea bottom shape Pending JPS57182608A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6769881A JPS57182608A (en) 1981-05-07 1981-05-07 Display device of sea bottom shape

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6769881A JPS57182608A (en) 1981-05-07 1981-05-07 Display device of sea bottom shape

Publications (1)

Publication Number Publication Date
JPS57182608A true JPS57182608A (en) 1982-11-10

Family

ID=13352427

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6769881A Pending JPS57182608A (en) 1981-05-07 1981-05-07 Display device of sea bottom shape

Country Status (1)

Country Link
JP (1) JPS57182608A (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4840336A (en) * 1971-09-22 1973-06-13
JPS4963463A (en) * 1972-06-05 1974-06-19
JPS5363053A (en) * 1976-11-17 1978-06-06 Koden Electronics Co Ltd Video displaying device

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4840336A (en) * 1971-09-22 1973-06-13
JPS4963463A (en) * 1972-06-05 1974-06-19
JPS5363053A (en) * 1976-11-17 1978-06-06 Koden Electronics Co Ltd Video displaying device

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