JPH0325753B2 - - Google Patents

Info

Publication number
JPH0325753B2
JPH0325753B2 JP60087844A JP8784485A JPH0325753B2 JP H0325753 B2 JPH0325753 B2 JP H0325753B2 JP 60087844 A JP60087844 A JP 60087844A JP 8784485 A JP8784485 A JP 8784485A JP H0325753 B2 JPH0325753 B2 JP H0325753B2
Authority
JP
Japan
Prior art keywords
transducer
phase
frequency
speed
ship
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.)
Expired - Lifetime
Application number
JP60087844A
Other languages
English (en)
Japanese (ja)
Other versions
JPS61246687A (ja
Inventor
Masahiko Gondo
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.)
Japan Radio Co Ltd
Original Assignee
Japan Radio 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 Japan Radio Co Ltd filed Critical Japan Radio Co Ltd
Priority to JP8784485A priority Critical patent/JPS61246687A/ja
Publication of JPS61246687A publication Critical patent/JPS61246687A/ja
Publication of JPH0325753B2 publication Critical patent/JPH0325753B2/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
    • G01S15/00—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems
    • G01S15/02—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems using reflection of acoustic waves
    • G01S15/50—Systems of measurement, based on relative movement of the target
    • G01S15/58—Velocity or trajectory determination systems; Sense-of-movement determination systems
    • G01S15/60—Velocity or trajectory determination systems; Sense-of-movement determination systems wherein the transmitter and receiver are mounted on the moving object, e.g. for determining ground speed, drift angle, ground track

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Acoustics & Sound (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
JP8784485A 1985-04-24 1985-04-24 速度測定装置 Granted JPS61246687A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8784485A JPS61246687A (ja) 1985-04-24 1985-04-24 速度測定装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8784485A JPS61246687A (ja) 1985-04-24 1985-04-24 速度測定装置

Publications (2)

Publication Number Publication Date
JPS61246687A JPS61246687A (ja) 1986-11-01
JPH0325753B2 true JPH0325753B2 (enrdf_load_stackoverflow) 1991-04-08

Family

ID=13926202

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8784485A Granted JPS61246687A (ja) 1985-04-24 1985-04-24 速度測定装置

Country Status (1)

Country Link
JP (1) JPS61246687A (enrdf_load_stackoverflow)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2759710B2 (ja) * 1990-08-09 1998-05-28 古野電気株式会社 水中探知装置

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1135827A (en) * 1978-12-04 1982-11-16 Rainer Fehr Determination of flow velocities by measuring phase difference between the doppler signals
JPS5839970A (ja) * 1981-09-03 1983-03-08 Japan Radio Co Ltd 速度測定器の送受波装置
JPS5853875A (ja) * 1981-09-25 1983-03-30 Nec Corp レ−ザ用半透鏡およびその製造方法

Also Published As

Publication number Publication date
JPS61246687A (ja) 1986-11-01

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Legal Events

Date Code Title Description
LAPS Cancellation because of no payment of annual fees