An iteration method is presented to solve the optimization function for approximating the rotation transformation part of the pseudo moving frame at any position of the motion trajectory.
采用迭代法求解该优化方程来逼近运动轨迹任意处伪活动标架的旋转变换矩阵。
The data of polar motion, rotation of the earth and atmospheric excitation function are analysed by the Auto-Regression power spectrum method, and their spectra at low frequency band are obtained.
本文用自回归功率谱方法分析了极移、地球自转和大气激发函数的资料，得到了它们的低频谱。
Absrtact: CORDIC (Coordinate Rotation Digital Computer) algorithm is the main method to realize the fast and accurate trigonometric function, and is widely used in modern engineering.
摘要：CORDIC算法是实现快速精确的正、余弦函数计算的主要方法，在工程实际中有着广泛应用。
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