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本文提出一种频率互补型外差式单边带双向分离技术和一种双双向多普勒定量测速方法,简要报导所实现的双向-定量血流速度仪(W-1、W-2系统)。
In this paper, a frequency-complementary heterodyne single-sideband bidirectional separation technique and a double bidirectional Doppler quantitative velocity measurement method are presented. The bi-directional quantitative blood flow velocity meter (W-1, W-2 system) .