JPS56155878A - Underwater position display device - Google Patents

Underwater position display device

Info

Publication number
JPS56155878A
JPS56155878A JP5897280A JP5897280A JPS56155878A JP S56155878 A JPS56155878 A JP S56155878A JP 5897280 A JP5897280 A JP 5897280A JP 5897280 A JP5897280 A JP 5897280A JP S56155878 A JPS56155878 A JP S56155878A
Authority
JP
Japan
Prior art keywords
depth
sea
altitude
underwater object
criterion
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
JP5897280A
Other languages
Japanese (ja)
Inventor
Hiroshi Kojima
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.)
NEC Corp
Original Assignee
NEC Corp
Nippon Electric 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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP5897280A priority Critical patent/JPS56155878A/en
Publication of JPS56155878A publication Critical patent/JPS56155878A/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
    • G01S15/87—Combinations of sonar systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)

Abstract

PURPOSE:To make reading of the position of an underwater object quick and easy by synthesizing the altitude and depth information based on the echo sounds from the sea surface and the sea bottom and simultaneously displaying the depth of water and the position of the underwater object based on the sea surfaces as a criterion. CONSTITUTION:The echo sounds from the sea surface and the sea bottom are received by transmitter-receivers 36, 37 for the altitude and depth of underwater objects such as submarines, and the altitude and depth information are stored respectively in altitude data and depth data memories 28, 29 respectively through a reception change-over part 25, A/D converter 39, and information change-over part 27, etc. The stored contents are processed by a synthesizing circuit 45, and a D/A converter 46, an underwater object position 18, and the sea bottom 19, etc. are recorded simultaneously on recording paper 16 with a recorder 22 based on the sea surface 17 as a criterion. The position of the underwater object is read quickly and easily by this system by which the underwater object position and depth and displayed simultaneously based on the sea surface as a criterion.
JP5897280A 1980-05-02 1980-05-02 Underwater position display device Pending JPS56155878A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5897280A JPS56155878A (en) 1980-05-02 1980-05-02 Underwater position display device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5897280A JPS56155878A (en) 1980-05-02 1980-05-02 Underwater position display device

Publications (1)

Publication Number Publication Date
JPS56155878A true JPS56155878A (en) 1981-12-02

Family

ID=13099754

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5897280A Pending JPS56155878A (en) 1980-05-02 1980-05-02 Underwater position display device

Country Status (1)

Country Link
JP (1) JPS56155878A (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4921908A (en) * 1972-06-20 1974-02-26
JPS509450A (en) * 1973-05-23 1975-01-30

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4921908A (en) * 1972-06-20 1974-02-26
JPS509450A (en) * 1973-05-23 1975-01-30

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