JPH0345797B2 - - Google Patents

Info

Publication number
JPH0345797B2
JPH0345797B2 JP59128423A JP12842384A JPH0345797B2 JP H0345797 B2 JPH0345797 B2 JP H0345797B2 JP 59128423 A JP59128423 A JP 59128423A JP 12842384 A JP12842384 A JP 12842384A JP H0345797 B2 JPH0345797 B2 JP H0345797B2
Authority
JP
Japan
Prior art keywords
signal
complex
frequency
doppler
kvt
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
JP59128423A
Other languages
English (en)
Japanese (ja)
Other versions
JPS618688A (ja
Inventor
Koroku Namekawa
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.)
Hitachi Ltd
Original Assignee
Aloka 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 Aloka Co Ltd filed Critical Aloka Co Ltd
Priority to JP12842384A priority Critical patent/JPS618688A/ja
Priority to US06/746,998 priority patent/US4780837A/en
Priority to CA000484677A priority patent/CA1246732A/en
Priority to EP85107684A priority patent/EP0166392B1/en
Priority to DE8585107684T priority patent/DE3586016D1/de
Publication of JPS618688A publication Critical patent/JPS618688A/ja
Publication of JPH0345797B2 publication Critical patent/JPH0345797B2/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
    • G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
    • G01S13/02—Systems using reflection of radio waves, e.g. primary radar systems; Analogous systems
    • G01S13/50—Systems of measurement based on relative movement of target
    • G01S13/58—Velocity or trajectory determination systems; Sense-of-movement determination systems
    • 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
    • G01S15/582—Velocity or trajectory determination systems; Sense-of-movement determination systems using transmission of interrupted pulse-modulated waves and based upon the Doppler effect resulting from movement of targets
    • G01S15/584—Velocity or trajectory determination systems; Sense-of-movement determination systems using transmission of interrupted pulse-modulated waves and based upon the Doppler effect resulting from movement of targets with measures taken for suppressing velocity ambiguities, i.e. anti-aliasing

Landscapes

  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Physics & Mathematics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • General Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
  • Radar Systems Or Details Thereof (AREA)
JP12842384A 1984-06-23 1984-06-23 ドプラ信号の周波数変換装置 Granted JPS618688A (ja)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP12842384A JPS618688A (ja) 1984-06-23 1984-06-23 ドプラ信号の周波数変換装置
US06/746,998 US4780837A (en) 1984-06-23 1985-06-19 Doppler signal frequency converter
CA000484677A CA1246732A (en) 1984-06-23 1985-06-20 Doppler signal frequency converter
EP85107684A EP0166392B1 (en) 1984-06-23 1985-06-21 Doppler signal frequency converter
DE8585107684T DE3586016D1 (de) 1984-06-23 1985-06-21 Frequenzumsetzer eines dopplersignals.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12842384A JPS618688A (ja) 1984-06-23 1984-06-23 ドプラ信号の周波数変換装置

Publications (2)

Publication Number Publication Date
JPS618688A JPS618688A (ja) 1986-01-16
JPH0345797B2 true JPH0345797B2 (en]) 1991-07-12

Family

ID=14984389

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12842384A Granted JPS618688A (ja) 1984-06-23 1984-06-23 ドプラ信号の周波数変換装置

Country Status (1)

Country Link
JP (1) JPS618688A (en])

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63179275A (ja) * 1987-01-21 1988-07-23 Aloka Co Ltd ドプラ信号変換装置

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58188433A (ja) * 1982-04-28 1983-11-02 アロカ株式会社 超音波診断装置

Also Published As

Publication number Publication date
JPS618688A (ja) 1986-01-16

Similar Documents

Publication Publication Date Title
US4780837A (en) Doppler signal frequency converter
EP0092841B1 (en) Ultrasonic diagnostic apparatus
CA1290429C (en) Closed loop velocity/altitude sensor for fm/cw doppler radars
US4799490A (en) Doppler ultrasonic diagnostic apparatus
US4759375A (en) Ultrasonic doppler diagnostic apparatus
CA1267968A (en) Ultrasonic device for measuring acceleration of moving reflective member
EP0166392B1 (en) Doppler signal frequency converter
JPH0345797B2 (en])
CA2197935C (en) Ultrasonic continuous wave doppler blood flow-meter
JPH05150035A (ja) ミリ波レーダ距離速度測定装置
JPH0319510B2 (en])
JPH04223273A (ja) パルスドップラー装置における多義性回避方法および装置
JPS61265591A (ja) ドプラ信号の周波数変換装置
US8920326B2 (en) Cancellation of products generated by harmonics of a square wave used in square-wave mixing
EP0474867B1 (en) Method of processing doppler signal
JPS62204734A (ja) 超音波ドプラ診断装置
US5216639A (en) Method for processing a doppler signal
JPH0224141B2 (en])
JPH0215038B2 (en])
JPH0479590B2 (en])
JP2714042B2 (ja) パルスドプラ計測装置
GB1490850A (en) Electronic network analyzer
JPH0679603B2 (ja) 超音波診断装置
JPH0199537A (ja) 超音波診断装置
JPH0613029B2 (ja) 超音波ドプラ血流測定装置

Legal Events

Date Code Title Description
EXPY Cancellation because of completion of term