发明名称 |
Aberration correction using beam data from a phased array ultrasonic scanner. |
摘要 |
<p>A PASS ultrasonic system performs a scan in which phase errors due to aberrations in the sound media are corrected prior to the acquisition of each beam. Phase errors are measured by cross correlating each of a set of reference beams with the desired beam to produce beam forming errors as a function of beam angle. This function is Fourier transformed to produce phase corrections that are employed by the ultrasonic system to offset the phase errors. <IMAGE></p> |
申请公布号 |
EP0545714(A1) |
申请公布日期 |
1993.06.09 |
申请号 |
EP19920311049 |
申请日期 |
1992.12.03 |
申请人 |
GENERAL ELECTRIC COMPANY |
发明人 |
O'DONNELL, MATTHEW |
分类号 |
A61B8/14;G01N29/30;G01N29/44;G01S7/52;G10K11/34 |
主分类号 |
A61B8/14 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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