正交相位法是超声多普勒技术中提取双向性血流信息的一种重要方法。
Quadrature phase method is one of the important methods in directional blood flow information detection using Doppler ultrasound techniques.
在相位编码脉冲压缩技术中,各种码都存在着多普勒失配问题。
There lies Doppler mismatch in every code of phase-coded pulse compression techniques.
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