等时畸变 [
děng shí jī biàn]
isochronous distortion
- 文摘:从理论上分析了芯棒倒锥角和芯棒长度对内螺旋凸筋形状畸变的抑制和消除作用,提出了采用倒锥形等螺距芯棒拉拔内螺纹管时芯棒几何参数的设计方法。
Abstract: This paper analyzes theoretically the effect of the reversed cone angle and length of the plug on restraint and elimination to the distortion of the internal spiral ribs,and put forth the design methods of the plug in drawing rifled tube. - 使用该算法得到的系数序列,在具备时移不变性的同时,消除了右侧边界存在数据畸变的现象,使小波分析技术结合神经网络等传统预测模型的方法应用于单变量时间序列预测任务具备可行性。
The coefficient sequences decomposed by this novel method possessed time-invariant capability and eliminated the data distortion phenomenon around right boundary, which made it feasible that the traditional forecasting models such as Neural Networks combining with wavelet transforms could apply to the uni-variant time series forecasting task. - 为改善控制性能,当由于摄像机倾角较大而引起的图像畸变较大时,利用射影变换把参考轨线参数从图像坐标系映射到机器人坐标系,而无须提供位置、曲率等参数。
In order to improve the control performance, when the image distortion is too large resulting from camera obliquity, these parameters are transformed from image coordinate to robot coordinate through projective transformation, while parameters such as position and curvature are not necessarily provided.
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