According to the basic theory of GPS navigation and SINS navigation, the comprehensive mathematic models of integrate navigation system is built under Earth Center Fixed coordinate system.
根据GPS导航和SINS导航的基本关系，在地心地固坐标系下建立了完整的深层全组合导航系统的数学模型。
An maximum likelihood registration algorithm based on earth-centered earth-fixed (ECEF) coordinate system is presented.
提出了一种基于地心坐标系（ECEF）的传感器极大似然配准算法。
The rotor impedance is calculated from the rotor equations of motion in the fixed- coordinate system derived from the modal equations of blade in the rotating-coordinate system.
旋翼阻抗由旋翼在固定坐标系中的运动方程得到，这个运动方程由旋翼旋转坐标系中的桨叶模态方程导出。
By measuring the coordinate positions of a series of fixed targets from several instrument locations and calculating the measurement results, the working uncertainty of the total system will be given.
通过移站测量来获得几个固定点的坐标位置，然后将测量结果进行处理，给出整个测量系统的测量不确定度。
The rotor impedance is calculated from the rotor equations of motion in the fixed-coordinate system derived from the modal equations of blade in the rotating-coordinate system.
旋翼阻抗由旋翼在固定价值标系中的运动方程得到，这个运动方程由旋翼旋转坐标系中的桨叶模态方程导出。
The structural system of a 3-DOF flexible parallel manipulator is described, to which both the fixed and motional coordinate systems are set up.
三自由度柔性并联机械手的结构体系进行了描述，这两个固定及移动的坐标系统的设置。
The structural system of a 3-DOF flexible parallel manipulator is described, to which both the fixed and motional coordinate systems are set up.
三自由度柔性并联机械手的结构体系进行了描述，这两个固定及移动的坐标系统的设置。
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