JPS56155872A - Bearing calculation system of underwater acoustic signal - Google Patents

Bearing calculation system of underwater acoustic signal

Info

Publication number
JPS56155872A
JPS56155872A JP5974480A JP5974480A JPS56155872A JP S56155872 A JPS56155872 A JP S56155872A JP 5974480 A JP5974480 A JP 5974480A JP 5974480 A JP5974480 A JP 5974480A JP S56155872 A JPS56155872 A JP S56155872A
Authority
JP
Japan
Prior art keywords
signal
frequency
conversion
signals
bearing
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
JP5974480A
Other languages
English (en)
Japanese (ja)
Other versions
JPS6343714B2 (enExample
Inventor
Kozo Honda
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 JP5974480A priority Critical patent/JPS56155872A/ja
Publication of JPS56155872A publication Critical patent/JPS56155872A/ja
Publication of JPS6343714B2 publication Critical patent/JPS6343714B2/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
    • 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

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)
JP5974480A 1980-05-06 1980-05-06 Bearing calculation system of underwater acoustic signal Granted JPS56155872A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5974480A JPS56155872A (en) 1980-05-06 1980-05-06 Bearing calculation system of underwater acoustic signal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5974480A JPS56155872A (en) 1980-05-06 1980-05-06 Bearing calculation system of underwater acoustic signal

Publications (2)

Publication Number Publication Date
JPS56155872A true JPS56155872A (en) 1981-12-02
JPS6343714B2 JPS6343714B2 (enExample) 1988-09-01

Family

ID=13122038

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5974480A Granted JPS56155872A (en) 1980-05-06 1980-05-06 Bearing calculation system of underwater acoustic signal

Country Status (1)

Country Link
JP (1) JPS56155872A (enExample)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112345248A (zh) * 2019-08-09 2021-02-09 郑州工程技术学院 一种滚动轴承的故障诊断方法及装置

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112345248A (zh) * 2019-08-09 2021-02-09 郑州工程技术学院 一种滚动轴承的故障诊断方法及装置
CN112345248B (zh) * 2019-08-09 2022-11-25 郑州工程技术学院 一种滚动轴承的故障诊断方法及装置

Also Published As

Publication number Publication date
JPS6343714B2 (enExample) 1988-09-01

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