JPS5687878A - Detecting method by acoustic wave - Google Patents

Detecting method by acoustic wave

Info

Publication number
JPS5687878A
JPS5687878A JP16352179A JP16352179A JPS5687878A JP S5687878 A JPS5687878 A JP S5687878A JP 16352179 A JP16352179 A JP 16352179A JP 16352179 A JP16352179 A JP 16352179A JP S5687878 A JPS5687878 A JP S5687878A
Authority
JP
Japan
Prior art keywords
channels
received
received wave
output
beams
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
JP16352179A
Other languages
Japanese (ja)
Inventor
Fukutaro Takahashi
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.)
Kaijo Denki Co Ltd
Marine Instr Co Ltd
Original Assignee
Kaijo Denki Co Ltd
Marine Instr 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 Kaijo Denki Co Ltd, Marine Instr Co Ltd filed Critical Kaijo Denki Co Ltd
Priority to JP16352179A priority Critical patent/JPS5687878A/en
Publication of JPS5687878A publication Critical patent/JPS5687878A/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
    • G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
    • G01S7/52—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S15/00
    • G01S7/52003—Techniques for enhancing spatial resolution of targets

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Ultra Sonic Daignosis Equipment (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)

Abstract

PURPOSE:To obtain a received wave beam of a substantially narrow width and improve azimuthal resolution by taking out output only when the received output of plural received wave beams are obtained at the same time. CONSTITUTION:When a transmitter 1 is operated, acoustic waves are transmitted from a probe 3 and buffer amplifiers 5 and 6 produce the output signals of the first and second channels by composing received waves in the beams. If the product of the output signals of the first and second channels is formed and amplified by a multiplying amplifer 7, the received wave beams of the first and second channels are formed on an overlapped part, which results in receiving a narrow beam, so that azimuthal resolusion is improved.
JP16352179A 1979-12-18 1979-12-18 Detecting method by acoustic wave Pending JPS5687878A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16352179A JPS5687878A (en) 1979-12-18 1979-12-18 Detecting method by acoustic wave

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16352179A JPS5687878A (en) 1979-12-18 1979-12-18 Detecting method by acoustic wave

Publications (1)

Publication Number Publication Date
JPS5687878A true JPS5687878A (en) 1981-07-16

Family

ID=15775441

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16352179A Pending JPS5687878A (en) 1979-12-18 1979-12-18 Detecting method by acoustic wave

Country Status (1)

Country Link
JP (1) JPS5687878A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61167569U (en) * 1985-04-06 1986-10-17

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5366760A (en) * 1976-11-27 1978-06-14 Canon Inc Transmission and reception of sound waves

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5366760A (en) * 1976-11-27 1978-06-14 Canon Inc Transmission and reception of sound waves

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61167569U (en) * 1985-04-06 1986-10-17
JPH0321495Y2 (en) * 1985-04-06 1991-05-10

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