In this paper, the principle and primary results of measure ultrasonic sound velocity and attenuation coefficient by ultrasonic syntonic method are introduced.
本文介绍利用超声共振法测量声速和声衰减系数的原理及自来水和乙醇的测量结果。
Hyperbolic velocity filtering and similar coefficient method are introduced to remove the influences resulting from end-point effect and alias.
为了消除端点和假频影响，文中采用了双曲线速度滤波法和相似系数法。
Using position data to obtain velocity parameters of object through differential coefficient is a general method in range.
通过对定位数据求微分以获得目标的速度参数，是靶场估计目标运动参数的常用方法。
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