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 藉由格雷編碼激發之超音波都卜勒偵測方法 |
刊登日期：2015/08/04 |
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| ‧ 專利名稱 |
藉由格雷編碼激發之超音波都卜勒偵測方法 |
| ‧ 專利證書號 |
I507709
US9097794
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| ‧ 專利權人 |
國立臺灣大學 |
‧ 專利國家
(申請日) |
中華民國 (2013/03/20)
美國 (2013/05/07)
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| ‧ 發明人 |
李百祺, 沈哲州, |
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| 技術摘要： |
An ultrasound Doppler detection method with Golay-encoded excitation is used to obtain the flow information of a moving object. A first Golay code is transmitted to the moving object for a reflection signal of the first Golay code and a second Golay code is transmitted to the moving object for a reflection signal of the second Golay code after waiting for a pulse repetition interval. The received reflection signals are match-filtered to generate a first and a second wave. The above steps are repeated several times. Then, a slow-time filter in the Doppler frequency domain whose low-pass cut-off frequency is a quarter of the pulse repetition frequency is used to filter out the first sidelobes of the first waves and the second sidelobes of the second waves. Finally, the ultrasound Doppler detection is formed according to the first mainlobes of the first waves and the second mainlobes of the second waves.
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聯繫方式 |
| 聯絡人：
研發處產學合作總中心 |
電話：
(02)3366-9949 |
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| 地 址：
10617臺北市大安區羅斯福路四段1號 禮賢樓六樓608室 |
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