JPS63152580U - - Google Patents
Info
- Publication number
- JPS63152580U JPS63152580U JP17662187U JP17662187U JPS63152580U JP S63152580 U JPS63152580 U JP S63152580U JP 17662187 U JP17662187 U JP 17662187U JP 17662187 U JP17662187 U JP 17662187U JP S63152580 U JPS63152580 U JP S63152580U
- Authority
- JP
- Japan
- Prior art keywords
- acoustic pulse
- reflected signal
- signal
- transmitting
- receiving
- 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
- 238000001514 detection method Methods 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
Description
第１図は本考案によるドプラ検出方式の実施例
を示すブロツク図、第２図は、送受波器指向性パ
ターンを示す説明図である。
１……送受波器、２……自乗回路、３……高域
波器、４……スイツチ、５……混合器、６……
帯域波器、７……周波数弁別器、８……サンプ
ルホールド回路、９……電圧制御発振器、１０…
…発振器、１１……混合器、１２……帯域波器
、１３……分周器、１４……スイツチ、１５……
タイミング回路、１６……送信器、１７……振幅
比較器、２０……海面、２１……送受波器指向性
特性カーブ、２２……２１の指向性カーブを自乗
した後の指向性特性カーブ、２３……副極大。
FIG. 1 is a block diagram showing an embodiment of the Doppler detection method according to the present invention, and FIG. 2 is an explanatory diagram showing a transducer directivity pattern. 1... Transducer/receiver, 2... Square circuit, 3... High frequency device, 4... Switch, 5... Mixer, 6...
Bandwidth wave generator, 7... Frequency discriminator, 8... Sample hold circuit, 9... Voltage controlled oscillator, 10...
...oscillator, 11...mixer, 12...bandwidth generator, 13...frequency divider, 14...switch, 15...
Timing circuit, 16... Transmitter, 17... Amplitude comparator, 20... Sea surface, 21... Transducer/receiver directivity characteristic curve, 22... Directivity characteristic curve obtained by squaring the directivity curve of 21. 23...Vice maximum.
Claims (1)
からの反射信号のドプラ周波数を検出することに
より移動目標を捜索探知するアクテイブソーナー
装置のドプラ検出装置に於いて、予め定めた指向
幅を有するビームを形成して音響パルスを送出す
る手段と、この音響パルス送出後、予め定めた一
定時間だけ反射信号を自乗して受信し、前記一定
時間後はそのまま反射信号を受信する手段と、前
記自乗して受信した信号と、そのまま受信した信
号の周波数の差を弁別する手段を備えてなること
を特徴とするアクテイブソーナー装置のドプラ検
出装置。 In the Doppler detection device of an active sonar device that searches for and detects a moving target by sending an acoustic pulse to a search area and detecting the Doppler frequency of a reflected signal from the search area, a beam having a predetermined directional width is means for forming and transmitting an acoustic pulse; after transmitting the acoustic pulse, receiving the reflected signal by squaring it for a predetermined period of time; and receiving the reflected signal as it is after the specified period of time; A Doppler detection device for an active sonar device, comprising means for discriminating the difference in frequency between a received signal and a signal received as is.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17662187U JPS63152580U (en) | 1987-11-19 | 1987-11-19 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17662187U JPS63152580U (en) | 1987-11-19 | 1987-11-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63152580U true JPS63152580U (en) | 1988-10-06 |
Family
ID=31117040
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17662187U Pending JPS63152580U (en) | 1987-11-19 | 1987-11-19 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63152580U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPWO2014199758A1 (en) * | 2013-06-11 | 2017-02-23 | 古野電気株式会社 | Doppler shift frequency measuring device and tidal meter provided with the same |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5089065A (en) * | 1973-12-07 | 1975-07-17 | ||
| JPS5113589A (en) * | 1974-07-25 | 1976-02-03 | Tokyo Shibaura Electric Co |
-
1987
- 1987-11-19 JP JP17662187U patent/JPS63152580U/ja active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5089065A (en) * | 1973-12-07 | 1975-07-17 | ||
| JPS5113589A (en) * | 1974-07-25 | 1976-02-03 | Tokyo Shibaura Electric Co |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPWO2014199758A1 (en) * | 2013-06-11 | 2017-02-23 | 古野電気株式会社 | Doppler shift frequency measuring device and tidal meter provided with the same |
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