JPH0135307B2 - - Google Patents
Info
- Publication number
- JPH0135307B2 JPH0135307B2 JP57224391A JP22439182A JPH0135307B2 JP H0135307 B2 JPH0135307 B2 JP H0135307B2 JP 57224391 A JP57224391 A JP 57224391A JP 22439182 A JP22439182 A JP 22439182A JP H0135307 B2 JPH0135307 B2 JP H0135307B2
- Authority
- JP
- Japan
- Prior art keywords
- transmission
- transmitting
- reception
- receiving
- receiver
- 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.)
- Expired
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
- G01S15/00—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems
- G01S15/88—Sonar systems specially adapted for specific applications
- G01S15/89—Sonar systems specially adapted for specific applications for mapping or imaging
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)
- Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
Description
【発明の詳細な説明】
本発明は、水中に音波を発射し、目標物体から
の反響音を受信、表示するソーナー送受信装置に
関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a sonar transmitting/receiving device that emits sound waves into water and receives and displays echoes from a target object.
従来、この種のソーナー送受信装置に用いられ
る送受信方式には、指向特性を有する送受信ビー
ムを特定方位に固定するセクタ送受信方式と指向
特性を有する送受信ビームをスキヤンするセクタ
スキヤン送受信方式とがある。 Conventionally, transmission and reception methods used in this type of sonar transmission and reception device include a sector transmission and reception method in which a transmission and reception beam having directional characteristics is fixed in a specific direction, and a sector scan transmission and reception method in which a transmission and reception beam having directional characteristics is scanned.
前者は、第１図にそのカバーできるビームを示
すように特定する範囲内の目標を探知することが
できるが、その範囲外の目標は探知できないとい
う欠点がある。また、後者は第２図でビームの一
例を示すようにかなり広い範囲をカバーできる
が、送受信の回数をＮとした場合、捜索時間はＮ
倍かかり、単位時間当りの特定する範囲内の情報
は１／Ｎになる等の欠点を有する。 The former has the disadvantage that it can detect targets within a specified range, as shown in FIG. 1 by its beam coverage, but cannot detect targets outside that range. In addition, the latter can cover a fairly wide area as shown in the example of the beam in Figure 2, but if the number of transmissions and receptions is N, the search time is N.
It takes twice as long, and the information within the specified range per unit time is 1/N.
本発明の目的は、上述した欠点を除去するもの
で、送受波器の送受信ビームが送受信の都度、そ
れぞれ特定する方位角度でシフトしつつ特定する
範囲を常にカバーするように送受信するという手
段を備えることにより、特定する範囲内の目標は
常に探知の機会を有しながら特定する範囲外の目
標に対しても、探知できるソーナー送受信装置を
提供することにある。 SUMMARY OF THE INVENTION An object of the present invention is to eliminate the above-mentioned drawbacks, and includes a means for transmitting and receiving beams of a transducer so as to always cover a specified range while shifting at specified azimuth angles each time transmission and reception are performed. Accordingly, it is an object of the present invention to provide a sonar transmitting/receiving device that can detect targets outside the specified range while always having a chance of detecting targets within the specified range.
前記目的を達成するために本発明によるソーナ
ー送受信装置は水中に音波を発射し、目標物体か
ら反響音を受信表示するソーナー送受信装置にお
いて、所定の周波数の送信信号を発する送受器
と、指向特性を有する送受信ビームを形成する送
受波手段と、送信信号を受信する受信器と、前記
受信器からの受信信号を表示する表示器と、前記
送受信の切替および送受信ビームの方向を切替え
ることのできる送受信切換器と、前記送受信切替
のタイミングを制御し、かつ送受信ビームの探知
方向を送受信の探知動作毎に一定の量ずつ変化さ
せ、一定の範囲を往復動させるように制御する送
受信制御器とからなり、常に特定する範囲の方位
角を含みつつ、周期的に一定の範囲の探知を可能
に構成してある。 To achieve the above object, the sonar transmitting/receiving device according to the present invention emits sound waves underwater and receives and displays echoes from a target object. a transmitting/receiving means for forming a transmitting/receiving beam, a receiver for receiving a transmitting signal, a display for displaying a received signal from the receiver, and a transmitting/receiving switch capable of switching the transmitting/receiving and switching the direction of the transmitting/receiving beam. and a transmission/reception controller that controls the timing of the transmission/reception switching, changes the detection direction of the transmission/reception beam by a certain amount for each transmission/reception detection operation, and controls the beam to reciprocate within a certain range, It is configured to be able to periodically detect a certain range while always including the specified range of azimuth angles.
前記構成によれば、従来の問題は完全に解決で
きる。 According to the above configuration, the conventional problems can be completely solved.
以下、図面を参照して本発明を詳細に説明す
る。 Hereinafter, the present invention will be explained in detail with reference to the drawings.
第３図は本発明の一実施例を示すブロツク図で
ある。送信器１は、所定の周波数の送信信号を発
生し、電力増幅した後、その送信信号を送受信切
替器２経由で、送波器４へ送出する。 FIG. 3 is a block diagram showing one embodiment of the present invention. The transmitter 1 generates a transmission signal of a predetermined frequency, amplifies the power, and then sends the transmission signal to the wave transmitter 4 via the transmission/reception switch 2 .
送受信切替器２は、第４図ａに示すように進行
方向を中心に左右30度の60度幅を特定する範囲を
含みその左外側90度まで捜索することができるよ
うに左120度から右30度までの送信ビームを形成
するよう送受信制御器３により切替えられる。 As shown in Fig. 4a, the transmitter/receiver switch 2 includes a range that specifies a 60 degree width of 30 degrees to the left and right around the direction of travel, and searches from 120 degrees to the left to the right. It is switched by the transmission/reception controller 3 to form a transmission beam of up to 30 degrees.
送信が終了すると同じ角度の受信ビームになる
よう送受信制御器３からの指令により送受信切替
器２は接続切替えされる。受波器５は目標物体か
らの反響音を受信し、その信号を送受信切替器２
経由で受信器６へ送る。受信器６でその受信波は
増幅され、CRT表示器等に表示される。以上の
送受信による探知動作に続き、次の送信のタイミ
ングでは、送受信制御器３は第４図ｂに示すよう
に、送受信ビームが30度右にシフトし、左90度か
ら右60度までをカバーするよう制御する。以下、
順次30度ステツプで進み左30度から右120度まで
進むと反転し、左へ30度づつシフトする。 When the transmission is completed, the transmission/reception switch 2 is switched in accordance with a command from the transmission/reception controller 3 so that the receiving beams have the same angle. The receiver 5 receives the echo sound from the target object and transmits the signal to the transmit/receive switch 2.
It is sent to receiver 6 via The received wave is amplified by the receiver 6 and displayed on a CRT display or the like. Following the above-mentioned detection operation by transmission and reception, at the next transmission timing, the transmission and reception controller 3 shifts the transmission and reception beam by 30 degrees to the right, covering the area from 90 degrees to the left to 60 degrees to the right, as shown in Figure 4b. control so that below,
It advances in 30 degree steps, going from 30 degrees to the left to 120 degrees to the right, then reverses and shifts 30 degrees to the left.
以上のような反復により進行方向の中心に対し
左右30度で60度幅の特定範囲を外れる左右120度
の範囲迄探知することが可能となる。 By repeating the above, it becomes possible to detect a range of 120 degrees left and right, which is outside the specific range of 30 degrees left and right and 60 degrees wide with respect to the center of the direction of travel.
本発明は、送受波器の特定する送受信ビームを
送受信と同期し、かつ特定する方位角でシフトし
て形成せしめた指向特性を特定する範囲内を常に
カバーしつつ、特定する範囲以外の範囲をも探知
する点に特徴を有するものであり、第３図の実施
例に変形を施こすことが可能である。たとえば、
実施例においては、送受信ビームを形成すべき送
受波器を送受独立としているが、送受兼用として
も全く同様に実施できることは明らかである。 The present invention synchronizes the transmission and reception beam specified by the transducer with the transmission and reception, and shifts it at a specified azimuth angle to form a directional characteristic that always covers the specified range while covering the range other than the specified range. The present invention is also characterized in that it also detects, and the embodiment shown in FIG. 3 can be modified. for example,
In the embodiment, the transducer for forming the transmitting and receiving beams is independent for transmitting and receiving, but it is clear that it can be implemented in exactly the same way even if it is used for both transmitting and receiving.
また、150度の範囲を30度ステツプでシフトし
ているが、範囲およびシフト量も所望に応じ任意
に設定できることは明らかであり、以上はすべて
本発明の範囲に含まれるものである。 Further, although the range of 150 degrees is shifted in steps of 30 degrees, it is clear that the range and the amount of shift can be arbitrarily set as desired, and all of the above are included in the scope of the present invention.
以上、詳しく説明したように、本発明によれば
特定する範囲をカバーするように送受信ビームを
形成し、かつこの送受信ビームのそれぞれを送受
信ごとに特定する方位角度でシフトすることによ
り特定する範囲内の目標を探知しながら、特定す
る範囲外の目標も探知することができるソーナー
送受信装置が実現できるという効果がある。 As explained above in detail, according to the present invention, transmitting and receiving beams are formed to cover a specified range, and each of the transmitting and receiving beams is shifted by a specified azimuth angle for each transmission and reception, so that within the specified range. This has the effect of realizing a sonar transmitting/receiving device that can detect targets outside the specified range while also detecting targets outside the specified range.
第１図は、セクタ送受信方式のビーム形式を示
す図、第２図は、セクタスキヤン送受信方式のビ
ーム形式を示す図、第３図は本発明によるソーナ
ー送受信装置の実施例を示すブロツク図、第４図
は本発明装置による探知範囲の一例を示す図であ
る。
１……送信器、２……送受信切替器、３……送
受信制御器、４……送波器、５……受波器、６…
…受信器。
FIG. 1 is a diagram showing the beam format of the sector transmission/reception method, FIG. 2 is a diagram showing the beam format of the sector scan transmission/reception method, and FIG. 3 is a block diagram showing an embodiment of the sonar transmission/reception apparatus according to the present invention. FIG. 4 is a diagram showing an example of the detection range by the device of the present invention. 1... Transmitter, 2... Transmission/reception switch, 3... Transmission/reception controller, 4... Transmitter, 5... Receiver, 6...
...receiver.
Claims (1)
受信表示するソーナー送受信装置において、所定
の周波数の送信信号を発生する送信器と、指向特
性を有する送受信ビームを形成する送受波手段
と、受信信号を受信する受信器と、前記受信器か
らの受信信号を表示する表示器と、前記送受信の
切替および送受信ビームの方向を切替えることの
できる送受信切替器と、前記送受信切替のタイミ
ングを制御し、かつ送受信ビームの探知方向を送
受信の探知動作毎に一定の量ずつ変化させ、一定
の範囲を往復動させるように制御する送受信制御
器とからなり、常に特定する範囲の方位角を含み
つつ、周期的に一定の範囲の探知を可能にしたこ
とを特徴とするソーナー送受信装置。1. In a sonar transmitting and receiving device that emits sound waves underwater and receives and displays echoes from a target object, a transmitter that generates a transmission signal of a predetermined frequency, a wave transmitting and receiving means that forms a transmitting and receiving beam having directional characteristics, and a receiving device. a receiver that receives a signal, a display that displays the received signal from the receiver, a transmission/reception switch that can switch the transmission/reception and the direction of the transmission/reception beam, and control the timing of the transmission/reception switching; It also includes a transmitting/receiving controller that changes the detection direction of the transmitting/receiving beam by a fixed amount for each transmitting/receiving detection operation, and controls the beam to reciprocate within a fixed range. A sonar transmitting/receiving device characterized by being capable of detecting a certain range.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22439182A JPS59114479A (en) | 1982-12-21 | 1982-12-21 | Sonar transmitting and receiving apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22439182A JPS59114479A (en) | 1982-12-21 | 1982-12-21 | Sonar transmitting and receiving apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59114479A JPS59114479A (en) | 1984-07-02 |
| JPH0135307B2 true JPH0135307B2 (en) | 1989-07-25 |
Family
ID=16813006
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP22439182A Granted JPS59114479A (en) | 1982-12-21 | 1982-12-21 | Sonar transmitting and receiving apparatus |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59114479A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04238286A (en) * | 1991-01-22 | 1992-08-26 | Japan Radio Co Ltd | Automotive road surface condition detection method and device |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54101354A (en) * | 1978-01-27 | 1979-08-09 | Kaijo Denki Kk | Wave transmitting and receiving method in sonar |
| JPS55138445A (en) * | 1979-04-13 | 1980-10-29 | Yokogawa Electric Works Ltd | Method of scanning sound field to be inspected in phaseddarrayysonar |
| JPS5925976B2 (en) * | 1979-06-06 | 1984-06-22 | 株式会社日立製作所 | Variable angle ultrasonic probe drive circuit |
-
1982
- 1982-12-21 JP JP22439182A patent/JPS59114479A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04238286A (en) * | 1991-01-22 | 1992-08-26 | Japan Radio Co Ltd | Automotive road surface condition detection method and device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS59114479A (en) | 1984-07-02 |
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