JPS6342757B2 - - Google Patents
Info
- Publication number
- JPS6342757B2 JPS6342757B2 JP14461881A JP14461881A JPS6342757B2 JP S6342757 B2 JPS6342757 B2 JP S6342757B2 JP 14461881 A JP14461881 A JP 14461881A JP 14461881 A JP14461881 A JP 14461881A JP S6342757 B2 JPS6342757 B2 JP S6342757B2
- Authority
- JP
- Japan
- Prior art keywords
- frequency
- underwater
- ship
- speed
- value
- 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
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 12
- 238000002592 echocardiography Methods 0.000 claims description 10
- 230000005540 biological transmission Effects 0.000 description 11
- 230000010355 oscillation Effects 0.000 description 7
- 238000001514 detection method Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 241000251468 Actinopterygii Species 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000002131 composite material Substances 0.000 description 2
- 230000003321 amplification Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000003786 synthesis reaction Methods 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
- 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)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14461881A JPS5847276A (ja) | 1981-09-16 | 1981-09-16 | 水中物体速度測定装置 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14461881A JPS5847276A (ja) | 1981-09-16 | 1981-09-16 | 水中物体速度測定装置 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5847276A JPS5847276A (ja) | 1983-03-18 |
| JPS6342757B2 true JPS6342757B2 (US07122547-20061017-C00273.png) | 1988-08-25 |
Family
ID=15366217
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14461881A Granted JPS5847276A (ja) | 1981-09-16 | 1981-09-16 | 水中物体速度測定装置 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5847276A (US07122547-20061017-C00273.png) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0390886A (ja) * | 1989-09-01 | 1991-04-16 | Marine Instr Co Ltd | 魚の向き判別方法 |
-
1981
- 1981-09-16 JP JP14461881A patent/JPS5847276A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5847276A (ja) | 1983-03-18 |
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