JP2003202370A5 - - Google Patents
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- JP2003202370A5 JP2003202370A5 JP2001401798A JP2001401798A JP2003202370A5 JP 2003202370 A5 JP2003202370 A5 JP 2003202370A5 JP 2001401798 A JP2001401798 A JP 2001401798A JP 2001401798 A JP2001401798 A JP 2001401798A JP 2003202370 A5 JP2003202370 A5 JP 2003202370A5
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- transmission
- transducer
- beam forming
- reception
- ultrasonic
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- 230000005540 biological transmission Effects 0.000 claims 53
- 238000001514 detection method Methods 0.000 claims 6
- 239000000284 extract Substances 0.000 claims 1
Claims (12)
前記トランスデューサの複数の振動子が受けた信号を制御して、受信ビームを形成する受信ビーム形成手段と、
を備え、前記横方向または縦方向の探知を行う超音波送受信装置において、
前記送信ビーム形成手段が、前記送信ビーム毎に前記振動子の駆動周波数を異ならせて、所定送信周波数の送信ビームを形成し、
前記受信ビーム形成手段が、前記送信ビームの前記送信周波数に対応した周波数成分を受信信号として抽出するようにした超音波送受信装置。A transducer in which a plurality of transducers are arranged, and a transmission beam forming unit that drives the plurality of transducers of the transducers to form a transmission beam of ultrasonic waves in a plurality of horizontal or vertical directions;
Receiving beam forming means for controlling signals received by a plurality of transducers of the transducer to form a receiving beam;
In the ultrasonic transmitting and receiving apparatus that performs the detection in the horizontal direction or the vertical direction,
The transmission beam forming means forms a transmission beam having a predetermined transmission frequency by varying the driving frequency of the transducer for each transmission beam,
An ultrasonic transmission / reception apparatus in which the reception beam forming means extracts a frequency component corresponding to the transmission frequency of the transmission beam as a reception signal.
前記受信ビーム形成手段は、前記振動子による受信信号を増幅し、ディジタル信号に変換する手段と、前記ディジタル信号に対して、受信ビームの方向を定める位相制御演算を施す手段と、前記送信周波数の成分を抽出するフィルタ演算を施す手段とから構成した、請求項１〜６のいずれかに記載の超音波送受信装置。The transmission beam forming means includes means for generating a waveform of a drive signal to be given to the vibrator as a pulse width modulated signal, and converts the pulse width modulated signal into an analog signal and amplifies the vibrator to convert the vibrator. And means for driving,
The reception beam forming means includes means for amplifying a signal received by the vibrator and converting it to a digital signal, means for performing a phase control operation for determining the direction of the reception beam on the digital signal, and The ultrasonic transmission / reception apparatus according to any one of claims 1 to 6, wherein the ultrasonic transmission / reception apparatus comprises: means for performing a filter operation for extracting a component.
前記トランスデューサの複数の振動子が受けた信号を制御して、受信ビームを形成する受信ビーム形成手段と、
を備え、前記横方向または縦方向の探知を行う超音波送受信装置において、
前記トランスデューサは、円筒面上または球面上に前記複数の振動子を配列したものであり、
前記送信ビーム形成手段は、前記振動子に与えるべき駆動信号の波形をパルス幅変調した信号として生成する手段と、該パルス幅変調された信号をアナログ信号に変換するとともに増幅して前記振動子を駆動する手段とからなり、前記送信ビーム毎に前記振動子の駆動周波数を異ならせて、所定送信周波数の送信ビームを形成し、
前記受信ビーム形成手段は、前記振動子による受信信号を増幅し、ディジタル信号に変換する手段と、前記ディジタル信号に対して、受信ビームの方向を定める位相制御演算を施す手段と、前記送信周波数の成分を抽出するフィルタ演算を施す手段とからなり、前記送信ビームの前記送信周波数に対応した周波数成分を受信信号として抽出する超音波送受信装置。A transducer in which a plurality of transducers are arranged, and a transmission beam forming unit that drives the plurality of transducers of the transducers to form a transmission beam of ultrasonic waves in a plurality of horizontal or vertical directions;
Receiving beam forming means for controlling signals received by a plurality of transducers of the transducer to form a receiving beam;
In the ultrasonic transmitting and receiving apparatus that performs the detection in the horizontal direction or the vertical direction,
The transducer is an array of the plurality of vibrators on a cylindrical surface or a spherical surface,
The transmission beam forming means includes means for generating a waveform of a drive signal to be given to the vibrator as a pulse width modulated signal, and converts the pulse width modulated signal into an analog signal and amplifies the vibrator to convert the vibrator. Comprising a means for driving, and by varying the drive frequency of the transducer for each transmission beam, forming a transmission beam of a predetermined transmission frequency,
The reception beam forming means includes means for amplifying a signal received by the vibrator and converting it to a digital signal, means for performing a phase control operation for determining the direction of the reception beam on the digital signal, and An ultrasonic transmission / reception apparatus comprising: means for performing a filter operation for extracting a component, and extracting a frequency component corresponding to the transmission frequency of the transmission beam as a reception signal.
互いに異なる周波数にそれぞれ対応する前記トランスデューサの複数の振動子を前記互いに異なる周波数の探知信号でもってそれぞれ駆動して、横方向の広範囲探査領域に対しておよび縦方向の広範囲探査領域に対して超音波の送信ビームをそれぞれ形成する送信ビーム形成手段と、 A plurality of transducers of the transducer respectively corresponding to different frequencies are driven by detection signals of the different frequencies, respectively, and ultrasonic waves are applied to the horizontal wide area search area and the vertical wide area search area. Transmission beam forming means for forming the transmission beams of
前記トランスデューサの複数の振動子が受信した信号を制御して、前記横方向および縦方向の広範囲探査領域の互いに異なる方向にそれぞれ複数の受信ビームを形成し前記送信ビームの送信周波数に対応した周波数成分を受信信号として抽出する受信ビーム形成手段と、 A frequency component corresponding to the transmission frequency of the transmission beam by controlling signals received by a plurality of transducers of the transducer to form a plurality of reception beams in different directions in the horizontal and vertical wide range search areas, respectively. Receiving beam forming means for extracting as a received signal;
を備えた超音波送受信装置。 An ultrasonic transmission / reception apparatus.
互いに異なる周波数にそれぞれ対応する前記トランスデューサの複数の振動子を前記互いに異なる周波数の探知信号でもってそれぞれ駆動して、互いに異なる二方向の広範囲探査領域に対して超音波の送信ビームをそれぞれ形成する送信ビーム形成手段と、 A plurality of transducers of the transducer corresponding to different frequencies are driven by detection signals of different frequencies, respectively, and transmissions for forming ultrasonic transmission beams in two different wide-range exploration areas are transmitted. Beam forming means;
前記トランスデューサの複数の振動子が受信した信号を制御して、前記二方向の広範囲探査領域の互いに異なる方向にそれぞれ複数の受信ビームを形成し前記送信ビームの送信周波数に対応した周波数成分を受信信号として抽出する受信ビーム形成手段と、 By controlling signals received by a plurality of transducers of the transducer, a plurality of reception beams are formed in different directions in the two-way wide-range search region, and frequency components corresponding to the transmission frequencies of the transmission beams are received signals. Receiving beam forming means for extracting as:
を備えた超音波送受信装置。 An ultrasonic transmission / reception apparatus.
該トランスデューサの複数の振動子を駆動して、広範囲探査領域に対して超音波信号を送信する送信手段と、 Transmitting means for driving a plurality of transducers of the transducer to transmit an ultrasonic signal to a wide-range exploration region;
前記トランスデューサの複数の振動子が受信した信号を制御して、複数方向の広範囲探査領域においてそれぞれ互いに異なる方向に複数の受信ビームを形成する受信ビーム形成手段と、 Receiving beam forming means for controlling signals received by a plurality of transducers of the transducer to form a plurality of receiving beams in directions different from each other in a multi-directional wide range search region;
を備えた超音波送受信装置。 An ultrasonic transmission / reception apparatus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001401798A JP4057812B2 (en) | 2001-12-28 | 2001-12-28 | Ultrasonic transceiver and scanning sonar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001401798A JP4057812B2 (en) | 2001-12-28 | 2001-12-28 | Ultrasonic transceiver and scanning sonar |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2003202370A JP2003202370A (en) | 2003-07-18 |
| JP2003202370A5 true JP2003202370A5 (en) | 2005-07-21 |
| JP4057812B2 JP4057812B2 (en) | 2008-03-05 |
Family
ID=27640266
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001401798A Expired - Fee Related JP4057812B2 (en) | 2001-12-28 | 2001-12-28 | Ultrasonic transceiver and scanning sonar |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP4057812B2 (en) |
Families Citing this family (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4216647B2 (en) | 2003-05-29 | 2009-01-28 | 古野電気株式会社 | Ultrasonic transmitter, ultrasonic transmitter / receiver, and detector |
| JP4116930B2 (en) | 2003-06-03 | 2008-07-09 | 古野電気株式会社 | Ultrasonic transmitter, ultrasonic transmitter / receiver, and detector |
| JP2005061858A (en) * | 2003-08-14 | 2005-03-10 | Japan Science & Technology Agency | Fish finder using DSP |
| JP4307223B2 (en) | 2003-11-28 | 2009-08-05 | 古野電気株式会社 | Underwater detector |
| JP5082031B2 (en) * | 2004-10-01 | 2012-11-28 | 国立大学法人北海道大学 | Underwater detection apparatus and method capable of calculating fish quantity information of a school of fish |
| JP5073160B2 (en) | 2004-10-01 | 2012-11-14 | 古野電気株式会社 | Underwater detection device capable of calculating fish school information, fish school volume and backscattering intensity of a single fish, and methods thereof |
| JP4605594B2 (en) | 2005-01-26 | 2011-01-05 | 古野電気株式会社 | Ultrasonic transducer and underwater detector |
| JP2006322773A (en) * | 2005-05-18 | 2006-11-30 | Furuno Electric Co Ltd | Scanning sonar |
| JP4955345B2 (en) * | 2006-08-29 | 2012-06-20 | 古野電気株式会社 | Underwater detection device and underwater detection method |
| JP5259076B2 (en) * | 2006-12-01 | 2013-08-07 | 古野電気株式会社 | Ultrasonic transceiver and scanning sonar |
| JP5697863B2 (en) * | 2009-10-20 | 2015-04-08 | 古野電気株式会社 | Doppler speedometer |
| JP6281961B2 (en) * | 2014-02-13 | 2018-02-21 | 古野電気株式会社 | Transmission unit and sonar |
| JP6441740B2 (en) * | 2015-05-25 | 2018-12-19 | 古野電気株式会社 | Doppler shift frequency measuring device, water velocity meter, and tidal current meter |
| JP6943792B2 (en) * | 2018-03-07 | 2021-10-06 | 株式会社光電製作所 | Ultrasonic exploration device |
| KR102078590B1 (en) * | 2018-07-18 | 2020-02-19 | 국방과학연구소 | Multi-frequency scanning sonar for high speed detection of underwater obstacle |
| WO2021010082A1 (en) * | 2019-07-16 | 2021-01-21 | 古野電気株式会社 | Underwater detection device and underwater detection method |
| US20230336921A1 (en) * | 2020-10-02 | 2023-10-19 | Aisin Corporation | Ultrasonic generator, transducer, and object detector |
-
2001
- 2001-12-28 JP JP2001401798A patent/JP4057812B2/en not_active Expired - Fee Related
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