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KMID : 0372919890100010033
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Journal of Biomedical Engineering Research
1989 Volume.10 No. 1 p.33 ~ p.41
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A Study on I New two-dimensional Pulsed Doppler System sing Second-order ampling Method
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Abstract
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The doppler effect is used for measuring the velocity of the blood flow in artery. Because of the range information, the pulsed doppler system is most commonly used. In this paper, we propose a new two-dimensional(2-D) pulsed Doppler system. Which uses second-order sampling method and serial processing. The proposed system using second-order sampling method eliminates in-phase, quadrature-phase balancing problem at demodulator of quadrature detection method. In addition, the new pulsed 2-D doppler system eliminates balancing problem of channels of 2-D doppler system because of serial processing.
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