JP4931386B2 - 2dマトリクスアレイを用いてcwドップラー超音波を実施する方法およびその装置 - Google Patents
2dマトリクスアレイを用いてcwドップラー超音波を実施する方法およびその装置 Download PDFInfo
- Publication number
- JP4931386B2 JP4931386B2 JP2005243679A JP2005243679A JP4931386B2 JP 4931386 B2 JP4931386 B2 JP 4931386B2 JP 2005243679 A JP2005243679 A JP 2005243679A JP 2005243679 A JP2005243679 A JP 2005243679A JP 4931386 B2 JP4931386 B2 JP 4931386B2
- Authority
- JP
- Japan
- Prior art keywords
- signal
- probe
- transmission signal
- beamformer
- ultrasound system
- 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 - Lifetime
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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
- G01S15/8906—Short-range imaging systems; Acoustic microscope systems using pulse-echo techniques
- G01S15/8909—Short-range imaging systems; Acoustic microscope systems using pulse-echo techniques using a static transducer configuration
- G01S15/8915—Short-range imaging systems; Acoustic microscope systems using pulse-echo techniques using a static transducer configuration using a transducer array
- G01S15/8925—Short-range imaging systems; Acoustic microscope systems using pulse-echo techniques using a static transducer configuration using a transducer array the array being a two-dimensional transducer configuration, i.e. matrix or orthogonal linear arrays
-
- 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
- G01S15/8906—Short-range imaging systems; Acoustic microscope systems using pulse-echo techniques
- G01S15/8909—Short-range imaging systems; Acoustic microscope systems using pulse-echo techniques using a static transducer configuration
- G01S15/8915—Short-range imaging systems; Acoustic microscope systems using pulse-echo techniques using a static transducer configuration using a transducer array
- G01S15/8927—Short-range imaging systems; Acoustic microscope systems using pulse-echo techniques using a static transducer configuration using a transducer array using simultaneously or sequentially two or more subarrays or subapertures
-
- 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
- G01S7/52017—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S15/00 particularly adapted to short-range imaging
- G01S7/52023—Details of receivers
- G01S7/5203—Details of receivers for non-pulse systems, e.g. CW systems
-
- 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
- G01S15/8906—Short-range imaging systems; Acoustic microscope systems using pulse-echo techniques
- G01S15/8959—Short-range imaging systems; Acoustic microscope systems using pulse-echo techniques using coded signals for correlation purposes
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Acoustics & Sound (AREA)
- Computer Networks & Wireless Communication (AREA)
- General Physics & Mathematics (AREA)
- Ultra Sonic Daignosis Equipment (AREA)
- Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
Description
200 超音波システムのフロントエンドサブシステム
202 送信機
204 変換素子
205 プローブ
209 受信側ビーム形成器
214 同軸リンク
230 クロック
232 パルサ
234 送信用パルス発生器
236 メモリ
Claims (9)
- 連続波(CW)送信信号を対象物体の中に送信する超音波プローブ(106)と、
前記CW送信信号を送信するように前記プローブ(106)を制御する送信機(102)であって、前記CW送信信号がディザー信号成分を含み、前記ディザー信号成分が周期的であり、前記プローブ(106)が前記CW送信信号に応答する前記物体からの超音波エコー信号を受信し、前記プローブ(106)が、前記超音波エコー信号に基づいて、前置増幅器と接続する少なくとも1つの受信チャネルを介してCW受信信号を出力する送信機(102)と、
前記少なくとも1つの受信チャネルからの前記CW受信信号に対してビーム形成を行うビーム形成器(110、209)と、
前記ビーム形成器の出力を処理するプロセッサ(112、228)とを含み、
前記CW送信信号が、前記CW送信信号に前記ディザー信号成分を導入するための位相変調または周波数変調を含む、超音波システム。 - 前記プローブ(106)が、変換素子(105、107)の1Dアレイおよび2Dマトリクスアレイの一方を含む、請求項1記載の超音波システム。
- 前記プローブ(106)が複数の変換素子(105、107)を含み、前記変換素子が複数のサブ開口セットに構成され、各サブ開口セットが個々の受信チャネルと関連付けられる、請求項1記載の超音波システム。
- 前記ビーム形成器(110)が、同数の受信チャネルと関連付けられた複数のアナログデジタル(A/D)変換器(111)を有するデジタルビーム形成器である、請求項1記載の超音波システム。
- スペクトルアナライザ(116)をさらに含み、前記ディザー信号成分の周期が、前記スペクトルアナライザ(116)に入力される信号のサンプリング周期を整数で割った値に等しい、請求項1記載の超音波システム。
- デジタル壁フィルタ(224)をさらに含み、前記ディザー信号成分の周期が、前記デジタル壁フィルタ(224)のサンプリング周期を整数で割った値に等しい、請求項1記載の超音波システム。
- 前記CW送信信号が、方形波、正弦波、トライレベル波、マルチレベル波、および鋸波のうちの1つである搬送波を含む、請求項1記載の超音波システム。
- 前記ビーム形成器(209)と前記プロセッサの間に設けられたA/D変換器(222)をさらに含む、請求項1記載の超音波システム。
- 前記プローブ(106)が、前記CW送信信号を2つの次元について電子的に操作する、請求項8記載の超音波システム。
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US10/928,077 | 2004-08-27 | ||
| US10/928,077 US7338450B2 (en) | 2004-08-27 | 2004-08-27 | Method and apparatus for performing CW doppler ultrasound utilizing a 2D matrix array |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2006061693A JP2006061693A (ja) | 2006-03-09 |
| JP4931386B2 true JP4931386B2 (ja) | 2012-05-16 |
Family
ID=35907060
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2005243679A Expired - Lifetime JP4931386B2 (ja) | 2004-08-27 | 2005-08-25 | 2dマトリクスアレイを用いてcwドップラー超音波を実施する方法およびその装置 |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US7338450B2 (ja) |
| JP (1) | JP4931386B2 (ja) |
| FR (1) | FR2874704B1 (ja) |
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2004
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-
2005
- 2005-08-09 FR FR0508443A patent/FR2874704B1/fr not_active Expired - Lifetime
- 2005-08-25 JP JP2005243679A patent/JP4931386B2/ja not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| FR2874704B1 (fr) | 2012-04-06 |
| FR2874704A1 (fr) | 2006-03-03 |
| JP2006061693A (ja) | 2006-03-09 |
| US7338450B2 (en) | 2008-03-04 |
| US20060058656A1 (en) | 2006-03-16 |
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| JP2006000287A (ja) | 超音波送受信装置 |
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