JPS5590873A - Detection-indication system for scanning sonar - Google Patents
Detection-indication system for scanning sonarInfo
- Publication number
- JPS5590873A JPS5590873A JP16519878A JP16519878A JPS5590873A JP S5590873 A JPS5590873 A JP S5590873A JP 16519878 A JP16519878 A JP 16519878A JP 16519878 A JP16519878 A JP 16519878A JP S5590873 A JPS5590873 A JP S5590873A
- Authority
- JP
- Japan
- Prior art keywords
- terms
- information
- pulse
- shoal
- sea
- 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.)
- Pending
Links
- 241000251468 Actinopterygii Species 0.000 abstract 3
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 abstract 3
- 239000013535 sea water Substances 0.000 abstract 3
- 238000005266 casting Methods 0.000 abstract 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
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/52—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S15/00
- G01S7/56—Display arrangements
- G01S7/62—Cathode-ray tube displays
- G01S7/6281—Composite displays, e.g. split-screen, multiple images
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
Abstract
PURPOSE:To easily persue a shoal of fish and easily determine the net casting time, by simultaneously displaying on one cathode-ray tube information on an object in the sea-water in terms of direction and horizontal distance in connection therewith, and information on the object in terms of position thereof in a perpendicular section of the sea-water. CONSTITUTION:Two pulses are generated every one spiral sweep by utilizing as a synchronizing signal an output from a sweep signal generating circuit 2. A pulse P9 is generated from these pulses. A gate circuit 23 is opened by the time width of the pulse P9 to generate an output P10 having a pulse width in proportion to the level of a hold voltage of a hold circuit 20. An image signal change-over circuit 24 is switched with an output from a change-over pulse generating circuit 17. Thus, information on a shoal of fish in terms of direction and horizontal distance in connection therewith and information the shoal of fish in terms of position thereof in a perpendicular section of the sea-water is displayed in a cathode-ray tube 12 at once.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16519878A JPS5590873A (en) | 1978-12-28 | 1978-12-28 | Detection-indication system for scanning sonar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16519878A JPS5590873A (en) | 1978-12-28 | 1978-12-28 | Detection-indication system for scanning sonar |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5590873A true JPS5590873A (en) | 1980-07-09 |
Family
ID=15807692
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16519878A Pending JPS5590873A (en) | 1978-12-28 | 1978-12-28 | Detection-indication system for scanning sonar |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5590873A (en) |
-
1978
- 1978-12-28 JP JP16519878A patent/JPS5590873A/en active Pending
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