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。
Hyperbolic velocity filtering and similar coefficient method are introduced to remove the influences resulting from end-point effect and alias.
目的探讨体外模拟心脏运动对多普勒血流流速曲线速度时间积分(VTI)测定的影响。
Objective To investigate the influence of simulated heart motion on the Doppler spectrum velocity - time integral (VTI) of simulated blood flow measurements through an in vitro model.
文中推荐VTI介质P波非双曲线速度分析及量板法两种方法，得到了较为实用、稳定的结果。
The paper recommended two methods for velocity analysis in VTI medium: non-hyperbolic P-wave velocity analysis and template method, which achieved practical and stable effects.
分析了提升过程中钢丝绳张力变化的影响因素，提出了采用S曲线速度图是可以减小张力突变的一种方法。
Analyzes the factors that influence the stretching changing in the hoisting process and put forward a method that adopting S-curve could reduce the stretching mutation.
在T形和S -曲线速度轮廓运动模式下，模型的仿真结果与理论分析一致，验证了该方法的合理性和有效性。
The reasonability and validity of the method was testified by the coincidence of the simulation and the theory analysis under the motion mode of trapezoidal velocity and S-velocity profile.
定子曲线的磨削质量主要受工作台的运动精度和磨削点线速度的影响。
The quality of stator curve precision grinding is influenced by the movement accuracy of workshop and linear velocity of grinding.
定子曲线的磨削质量主要受工作台的运动精度和磨削点线速度的影响。
The quality of stator curve precision grinding is influenced by the movement accuracy of workshop and linear velocity of grinding.
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