JPS618688A - ドプラ信号の周波数変換装置 - Google Patents
ドプラ信号の周波数変換装置Info
- Publication number
- JPS618688A JPS618688A JP12842384A JP12842384A JPS618688A JP S618688 A JPS618688 A JP S618688A JP 12842384 A JP12842384 A JP 12842384A JP 12842384 A JP12842384 A JP 12842384A JP S618688 A JPS618688 A JP S618688A
- Authority
- JP
- Japan
- Prior art keywords
- complex
- signal
- signals
- doppler
- frequency
- 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
Links
- 238000001514 detection method Methods 0.000 claims abstract description 5
- 230000005855 radiation Effects 0.000 claims abstract description 5
- 230000000737 periodic effect Effects 0.000 claims abstract description 3
- 238000006243 chemical reaction Methods 0.000 claims description 8
- 238000005259 measurement Methods 0.000 abstract description 4
- 230000017531 blood circulation Effects 0.000 abstract description 2
- 239000000203 mixture Substances 0.000 abstract 1
- 238000001228 spectrum Methods 0.000 description 12
- 239000000523 sample Substances 0.000 description 9
- 230000005540 biological transmission Effects 0.000 description 7
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 238000002592 echocardiography Methods 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
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)
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 true JPS618688A (ja) | 1986-01-16 |
| JPH0345797B2 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]) |
Cited By (1)
| 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 |
Citations (1)
| 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 |
-
1984
- 1984-06-23 JP JP12842384A patent/JPS618688A/ja active Granted
Patent Citations (1)
| 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 |
Cited By (1)
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0345797B2 (en]) | 1991-07-12 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |