JPS5889875U - PPI display device for sonar - Google Patents
PPI display device for sonarInfo
- Publication number
- JPS5889875U JPS5889875U JP18472681U JP18472681U JPS5889875U JP S5889875 U JPS5889875 U JP S5889875U JP 18472681 U JP18472681 U JP 18472681U JP 18472681 U JP18472681 U JP 18472681U JP S5889875 U JPS5889875 U JP S5889875U
- Authority
- JP
- Japan
- Prior art keywords
- signal
- strength indication
- reception strength
- indication signal
- crt display
- 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
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は従来のソーナのＰＰＩ表示方式のＣＲ７表示面
を示す図、第２図は本考案の一実施例を示すブロック図
である。
１・・・・・・近距離目標からの映像、２・・・・・・
遠距離目標からの映像、３・・・・・・従来のソーナ用
ＰＰＭ表示回路、４・・・・・・サイン波発生回路、５
・・・・・・コサイン波発生回路、６・・・・・・きよ
歯状波発生回路、７．８・・・・・・乗算回路、９・・
・・・・映像輝度信号補正回路、１０・・・・・−ＣＲ
Ｔ表示器、１１・・・・・・サイン波、１２・・・・・
・コサイン波、１３・・・・・・きよ歯状波、１４・・
・・・・映像輝度信号、１５・・・・・・Ｙ軸偏向信号
、１６・・・・・・Ｘ軸偏向信号、１７・・・・・・補
正映像輝度信号。FIG. 1 is a diagram showing a CR7 display screen of a conventional sonar PPI display system, and FIG. 2 is a block diagram showing an embodiment of the present invention. 1... Image from a short-range target, 2...
Image from a long-range target, 3... Conventional PPM display circuit for sonar, 4... Sine wave generation circuit, 5
... Cosine wave generation circuit, 6 ... Fine tooth wave generation circuit, 7.8 ... Multiplication circuit, 9 ...
...Video luminance signal correction circuit, 10...-CR
T display, 11... Sine wave, 12...
・Cosine wave, 13... Clean tooth wave, 14...
...Video brightness signal, 15...Y-axis deflection signal, 16...X-axis deflection signal, 17...Corrected video brightness signal.
Claims (1)
表示するＣＲＴ表示器と、このＣＲＴ表示器に偏向信号
を与える偏向回路と、この偏向回路で用いるきよ歯状波
信号と受信波信号と受信音波の強度を表す第１の受信強
度表示信号とを掛合せることにより前記距離に応じて弱
まる割合が前記第１の受信強度表示信号より小さくなる
ようにした第２の受信強度表示信号を出力する乗算回路
と、この第２の受信強度表示信号を前記ＣＲＴ表示器の
輝度信号入力端子へ導く手段とを含むソー土用ＰＰＩ表
示装置。A CRT display that displays information regarding the distance and direction of underwater objects in PPI format with brightness, a deflection circuit that provides a deflection signal to this CRT display, and a tooth-tooth wave signal, a received wave signal, and a received sound wave used in this deflection circuit. and a first reception strength indication signal representing the strength of the first reception strength indication signal, thereby outputting a second reception strength indication signal whose weakening rate according to the distance is smaller than that of the first reception strength indication signal. 1. A PPI display for saw soil, including circuitry and means for directing the second received strength indicating signal to a luminance signal input terminal of the CRT display.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18472681U JPS5889875U (en) | 1981-12-11 | 1981-12-11 | PPI display device for sonar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18472681U JPS5889875U (en) | 1981-12-11 | 1981-12-11 | PPI display device for sonar |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5889875U true JPS5889875U (en) | 1983-06-17 |
Family
ID=29985133
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18472681U Pending JPS5889875U (en) | 1981-12-11 | 1981-12-11 | PPI display device for sonar |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5889875U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6055048U (en) * | 1983-09-24 | 1985-04-17 | 株式会社東芝 | Electron gun structure for high frequency electron tube |
| JPS6056089U (en) * | 1983-09-24 | 1985-04-19 | 株式会社東芝 | arc raster scan display device |
-
1981
- 1981-12-11 JP JP18472681U patent/JPS5889875U/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6055048U (en) * | 1983-09-24 | 1985-04-17 | 株式会社東芝 | Electron gun structure for high frequency electron tube |
| JPS6056089U (en) * | 1983-09-24 | 1985-04-19 | 株式会社東芝 | arc raster scan display device |
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