JPS6447986A - Active sonar system - Google Patents

Active sonar system

Info

Publication number
JPS6447986A
JPS6447986A JP20438887A JP20438887A JPS6447986A JP S6447986 A JPS6447986 A JP S6447986A JP 20438887 A JP20438887 A JP 20438887A JP 20438887 A JP20438887 A JP 20438887A JP S6447986 A JPS6447986 A JP S6447986A
Authority
JP
Japan
Prior art keywords
frequencies
circuit
waves
high frequency
difference
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
JP20438887A
Other languages
English (en)
Inventor
Hideyuki Takahashi
Hiroshi Kamata
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 JP20438887A priority Critical patent/JPS6447986A/ja
Publication of JPS6447986A publication Critical patent/JPS6447986A/ja
Pending legal-status Critical Current

Links

Landscapes

  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
JP20438887A 1987-08-18 1987-08-18 Active sonar system Pending JPS6447986A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP20438887A JPS6447986A (en) 1987-08-18 1987-08-18 Active sonar system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP20438887A JPS6447986A (en) 1987-08-18 1987-08-18 Active sonar system

Publications (1)

Publication Number Publication Date
JPS6447986A true JPS6447986A (en) 1989-02-22

Family

ID=16489711

Family Applications (1)

Application Number Title Priority Date Filing Date
JP20438887A Pending JPS6447986A (en) 1987-08-18 1987-08-18 Active sonar system

Country Status (1)

Country Link
JP (1) JPS6447986A (ja)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009025103A (ja) * 2007-07-18 2009-02-05 Tokyo Electric Power Co Inc:The 反射法探査システム

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009025103A (ja) * 2007-07-18 2009-02-05 Tokyo Electric Power Co Inc:The 反射法探査システム

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