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direction cosine

  • 方向余弦：在空间解析几何中，表示向量与坐标轴之间夹角余弦值的一种量度。

双语例句

  1. This paper presents a new method named "Analytic Orthogonalization", for orthogonalizing direction cosine matrix.
    本文提出方向余弦矩阵正交化的一种新方法——解析正交化。
  2. The coordinate transformation matrix based on the direction cosine parameters from the object coordinate system to the world coordinate system is derived by vector algebra.
    利用矢量代数的方法，推导出以方向余弦为参量的物坐标系到世界坐标系的坐标变换矩阵；利用矩阵求逆的方法，推导出世界坐标系到物坐标系的坐标变换矩阵。
  3. A kinematics model by post D-H method for 4R-robot was offered in this paper, which derived the manipulator finger position and its attitude with unit vectors of direction cosine.
    采用D-H后置法建立了4R机器人运动方程，建立机器人执行机构在空间相对位置关系的数学模型，由此可解出手部位置和用单位矢量方向余弦表示的姿态。

网络短语

  • direction cosine matrix
    方向余弦矩阵；弦矩阵
  • direction cosine system
    方向余弦坐标系统
  • the direction cosine
    方向余弦
  • direction cosine array
    方向余弦矩阵
  • direction cosine matrices
    方向余弦矩阵

英英释义

  • In analytic geometry, the direction cosines (or directional cosines) of a vector are the cosines of the angles between the vector and the three coordinate axes. Or equivalently it is the component contributions of the basis to the unit vector.