JPS5516243A - Wave-height measuring system by laser ray - Google Patents
Wave-height measuring system by laser rayInfo
- Publication number
- JPS5516243A JPS5516243A JP8885678A JP8885678A JPS5516243A JP S5516243 A JPS5516243 A JP S5516243A JP 8885678 A JP8885678 A JP 8885678A JP 8885678 A JP8885678 A JP 8885678A JP S5516243 A JPS5516243 A JP S5516243A
- Authority
- JP
- Japan
- Prior art keywords
- wave height
- wave
- reflections
- stripes
- numbers
- 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
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
- G01S17/00—Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems
- G01S17/88—Lidar systems specially adapted for specific applications
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Electromagnetism (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Optical Radar Systems And Details Thereof (AREA)
Abstract
PURPOSE:To measure the wave height of the surface of the water located at a long distance from a fixed point on the ground, etc. without providing the navigation of shipping with obstacles, by irradiating laser rays on the surface of the sea or the surface of the water of rivers, and by obtaining the information of wave height from thrown-back reflections gained. CONSTITUTION:When keeping the spread angles of laser beams constant, the numbers of stripes 2' are comparatively few as striped patterns 6-1 when wave height is high because the reflections of waves observed by laser rays irradiated are formed as a line of beltlike reflections about one mount of waves arranging in row- like shapes. When wave height is low, on the contrary, the numbers of the stripes 2' become more as striped patterns 6-2. Meanwhile, relationship between the wave length and wave height of the water area to be measured is beforehand obtained using wind velocity, wind direction, tides, etc. as parameters because wave length has a strong element related to wave height and is characterized by regional groups. Thus, wave height can be gained by measuring the numbers of the stripes of reflections with striped patterns formed on an image-formation plate 6 and the moving directions.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8885678A JPS5829845B2 (en) | 1978-07-20 | 1978-07-20 | Wave height measurement method using laser light |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8885678A JPS5829845B2 (en) | 1978-07-20 | 1978-07-20 | Wave height measurement method using laser light |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5516243A true JPS5516243A (en) | 1980-02-04 |
JPS5829845B2 JPS5829845B2 (en) | 1983-06-25 |
Family
ID=13954619
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP8885678A Expired JPS5829845B2 (en) | 1978-07-20 | 1978-07-20 | Wave height measurement method using laser light |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5829845B2 (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2619444A1 (en) * | 1987-08-13 | 1989-02-17 | France Etat Armement | Device for point measurement of the height of an agitated mass of water, in particular swell |
WO2002008691A1 (en) * | 2000-07-21 | 2002-01-31 | Gkss-Forschungszentrum Geesthacht Gmbh | Method and device for determining hydrographic parameters, which describe a sea-swell field in a wave-tank |
JP2010133802A (en) * | 2008-12-03 | 2010-06-17 | Mitsubishi Heavy Ind Ltd | Maritime monitoring/searching method |
JPWO2014192532A1 (en) * | 2013-05-31 | 2017-02-23 | 古野電気株式会社 | Marine environment information detection device, route setting device, marine environment information detection method, and program |
JP2017133902A (en) * | 2016-01-27 | 2017-08-03 | 国立大学法人 千葉大学 | Wave measurement device and target detection device |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59170873U (en) * | 1983-04-28 | 1984-11-15 | 松下電器産業株式会社 | Electrical components with multiple terminals |
-
1978
- 1978-07-20 JP JP8885678A patent/JPS5829845B2/en not_active Expired
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2619444A1 (en) * | 1987-08-13 | 1989-02-17 | France Etat Armement | Device for point measurement of the height of an agitated mass of water, in particular swell |
WO2002008691A1 (en) * | 2000-07-21 | 2002-01-31 | Gkss-Forschungszentrum Geesthacht Gmbh | Method and device for determining hydrographic parameters, which describe a sea-swell field in a wave-tank |
JP2010133802A (en) * | 2008-12-03 | 2010-06-17 | Mitsubishi Heavy Ind Ltd | Maritime monitoring/searching method |
JPWO2014192532A1 (en) * | 2013-05-31 | 2017-02-23 | 古野電気株式会社 | Marine environment information detection device, route setting device, marine environment information detection method, and program |
JP2017133902A (en) * | 2016-01-27 | 2017-08-03 | 国立大学法人 千葉大学 | Wave measurement device and target detection device |
Also Published As
Publication number | Publication date |
---|---|
JPS5829845B2 (en) | 1983-06-25 |
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