JPS58160879A - 底質判別装置 - Google Patents
底質判別装置Info
- Publication number
- JPS58160879A JPS58160879A JP57041685A JP4168582A JPS58160879A JP S58160879 A JPS58160879 A JP S58160879A JP 57041685 A JP57041685 A JP 57041685A JP 4168582 A JP4168582 A JP 4168582A JP S58160879 A JPS58160879 A JP S58160879A
- Authority
- JP
- Japan
- Prior art keywords
- output
- recording
- gain
- sea bottom
- amplifier
- 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
- 239000000463 material Substances 0.000 title abstract description 7
- 230000003321 amplification Effects 0.000 claims abstract 2
- 238000003199 nucleic acid amplification method Methods 0.000 claims abstract 2
- 239000013049 sediment Substances 0.000 claims description 6
- 230000037303 wrinkles Effects 0.000 claims 1
- 241000251468 Actinopterygii Species 0.000 abstract description 9
- 230000005540 biological transmission Effects 0.000 abstract description 5
- 230000003247 decreasing effect Effects 0.000 abstract description 2
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000002592 echocardiography Methods 0.000 description 1
- 239000011499 joint compound Substances 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
- G01S15/88—Sonar systems specially adapted for specific applications
- G01S15/96—Sonar systems specially adapted for specific applications for locating fish
Landscapes
- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Computer Networks & Wireless Communication (AREA)
- General Physics & Mathematics (AREA)
- Geophysics And Detection Of Objects (AREA)
- Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP57041685A JPS58160879A (ja) | 1982-03-18 | 1982-03-18 | 底質判別装置 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP57041685A JPS58160879A (ja) | 1982-03-18 | 1982-03-18 | 底質判別装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS58160879A true JPS58160879A (ja) | 1983-09-24 |
JPH0125436B2 JPH0125436B2 (enrdf_load_stackoverflow) | 1989-05-17 |
Family
ID=12615275
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP57041685A Granted JPS58160879A (ja) | 1982-03-18 | 1982-03-18 | 底質判別装置 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS58160879A (enrdf_load_stackoverflow) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH1152048A (ja) * | 1997-07-31 | 1999-02-26 | Japan Radio Co Ltd | 水中探知装置 |
JP2006162294A (ja) * | 2004-12-02 | 2006-06-22 | Furuno Electric Co Ltd | 底質探知装置 |
JP2006208143A (ja) * | 2005-01-27 | 2006-08-10 | Honda Electronic Co Ltd | 底質表示魚群探知機 |
JP2007178125A (ja) * | 2005-12-26 | 2007-07-12 | Furuno Electric Co Ltd | 底質検出装置および底質検出方法 |
US9085324B2 (en) | 2012-09-27 | 2015-07-21 | Fuji Jukogyo Kabushiki Kaisha | Front pillar structure for vehicle |
US9096270B2 (en) | 2012-09-27 | 2015-08-04 | Fuji Jukogyo Kabushiki Kaisha | Pillar structure for vehicle |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5010774U (enrdf_load_stackoverflow) * | 1973-06-07 | 1975-02-04 | ||
JPS55113973A (en) * | 1979-02-27 | 1980-09-02 | Marine Instr Co Ltd | Fish detector for dragnet |
-
1982
- 1982-03-18 JP JP57041685A patent/JPS58160879A/ja active Granted
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5010774U (enrdf_load_stackoverflow) * | 1973-06-07 | 1975-02-04 | ||
JPS55113973A (en) * | 1979-02-27 | 1980-09-02 | Marine Instr Co Ltd | Fish detector for dragnet |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH1152048A (ja) * | 1997-07-31 | 1999-02-26 | Japan Radio Co Ltd | 水中探知装置 |
JP2006162294A (ja) * | 2004-12-02 | 2006-06-22 | Furuno Electric Co Ltd | 底質探知装置 |
JP2006208143A (ja) * | 2005-01-27 | 2006-08-10 | Honda Electronic Co Ltd | 底質表示魚群探知機 |
JP2007178125A (ja) * | 2005-12-26 | 2007-07-12 | Furuno Electric Co Ltd | 底質検出装置および底質検出方法 |
US9085324B2 (en) | 2012-09-27 | 2015-07-21 | Fuji Jukogyo Kabushiki Kaisha | Front pillar structure for vehicle |
US9096270B2 (en) | 2012-09-27 | 2015-08-04 | Fuji Jukogyo Kabushiki Kaisha | Pillar structure for vehicle |
Also Published As
Publication number | Publication date |
---|---|
JPH0125436B2 (enrdf_load_stackoverflow) | 1989-05-17 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
Craig et al. | Design of a sonar for fish counting | |
Knott et al. | Interpretation of high-resolution echo-sounding techniques and their use in bathymetry, marine geophysics, and biology | |
JP2553480B2 (ja) | 魚群探知機の単体魚判別回路 | |
JPS58160879A (ja) | 底質判別装置 | |
JPS627515B2 (enrdf_load_stackoverflow) | ||
US3512125A (en) | Underwater acoustic telemetering system | |
US3478308A (en) | Sea bottom classifier | |
US4369508A (en) | Sonar having signal amplitude differentiation and noise suppression | |
US4648081A (en) | Circuit for automatic seabed discrimination | |
Everson | Estimation of krill abundance | |
Guillard et al. | Application of mobile acoustic techniques fish surveys in shallow water: The River Seine | |
US4188608A (en) | Fish detection apparatus | |
Backus | The “pinger” as an aid in deep trawling | |
US3460059A (en) | Circuit arrangement for echo sounders | |
US4410966A (en) | Method and apparatus for detection of insoluble sinking pollutants | |
Carpenter | A digital echo-counting system for use in fisheries research | |
JPH0672924B2 (ja) | 魚群探知機における魚群探知警報発生装置 | |
JPS5940280A (ja) | 水中探知表示装置 | |
Knudsen | Gauging the reliability of acoustic instruments for fisheries surveys | |
GB1241663A (en) | Improvements in or relating to echo sounders | |
JPS6122276A (ja) | 高度深度ソ−ナ− | |
JPS604956B2 (ja) | 音波探査信号の記録装置 | |
JPS62282286A (ja) | 流速測定方法 | |
JPS61274284A (ja) | 魚群探知機の記録方式 | |
JPS6339660Y2 (enrdf_load_stackoverflow) |