On the bases of analyzing triangle wave form modulated LFM, the method of using DDR (Dual Channel Directional Doppler range) technique to eliminate the influence of speed to range is presented.
在分析三角波调制的线性调频信号的基础上，提出了用DDR技术消除速度对测距的影响方法。
And there is a triangle, five-pointed star, heart-shaped baby seal provides free graffiti, paint your baby's interest and foster a wide range of intellectual curiosity.
并且有三角形、五角星、心形印章可提供宝宝随意涂鸦，培养宝宝的画画兴趣和多方面的求知欲。
Double triangle boom is a kind of directly positioning mechanism, it can remove the drill rod to a target position directly in its operating range.
双三角钻臂属于直接定位钻臂，在工作区间可将钎头直接移位到目标位置。
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