基于单位四元数的任意旋转角度的三维坐标转换

Three-Dimensional Coordinate Transformation Adapted to Arbitrary Rotation Angles Based on Unit Quaternion

针对三维空间坐标转换模型的参数求解问题,引入四元数构造旋转矩阵,证明了坐标转换旋转矩阵等价于四元数的正交变换,并利用单位四元数理论推导了一种直接进行空间坐标转换的算法。通过模拟数据进行仿真实验表明,该算法无需线性化,计算简便,且适用于任意旋转角度的坐标转换。

In this paper, to solve the parameter of the three-dimensional spatial coordinate transformation model, quaternion is introduced to construct a rotation matrix. This paper proves that the coordinate transformation rotation matrix is equivalent to the orthogonal transformation of quaternion. Using unit quaternion theory derivates a direct algorithm for solving spatial coordinate transformations. A simulation test using analogue data and numerical examples show that the method is feasible and simple, does need not linearization, and can adapt to arbitrary rotation angle rotation transformations.