A programmable digital signal processor for ranging gate pulse Doppler radar is presented.
本文介绍了一种用于距离门脉冲多卜勒雷达的可编程序数字信号处理机。
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Methods 70 cases pregnant women (pregnant age ranging from 13 to 40 weeks) were examined by color Doppler ultrasound to measure the umbilical artery blood flow quantities of the normal foetuses.