direction cosine
英 [dəˈrekʃn ˈkəʊsaɪn]
美 [dəˈrekʃn ˈkoʊsaɪn]
方向余弦
双语例句
- A kinematics model by post D-H method for4R-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。 - And there is no acceleration in the y direction so this one must be mg cosine alpha.
但是也没加速度，所以N和mgcosα相同。 - Methods of spherical trigonometry and direction cosine matrix were applied respectively to derive the bracket error, and the two methods had the same error formula and the same calculation results.
应用球面三角法和方向余弦矩阵法分别推导出双轴陀螺平台的支架误差公式，发现由这两种方法推导出来的公式计算结果是一致的。 - Well, what I can change is the direction, and this will be the largest when the cosine is one.
我可以改变的是方向，当cos=1时，这个可以取到最大。 - The angle displacement of tested body is confirmed with the method of direction cosine, the mathematical model of angle displacement is established.
以方向余弦法来确定被测体的角位移，建立其角位移数学模型。 - The data from 3-axis MEMS accelerators and 3-axis MEMS gyros is used to determine the pitch angle and the roll angle of the air vehicle using an extended Kalman filter ( EKF) equation deduced from the direction cosine matrix.
利用三轴MEMS加速度计和三轴MEMS陀螺数据，由方向余弦矩阵的姿态表示形式推导了扩展Kalman滤波方程，解算出飞行器的俯仰角和横滚角； - By the analysing method of direction cosine matrix, we set up motion analysing model of spherical gear and fluted disc of this gear, thus provide the theoretical basis for control system design of actuating mechanism.
利用方向余弦矩阵分析法建立了球齿轮机构和球齿轮齿盘机构的运动分析模型，为执行机构的控制系统设计提供了理论依据。 - 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； - The updating algorithm of Strapdown matrix is one of the crucial techniques of SINS. There are several kinds of attitude updating algorithms of SINS, such as direction cosine algorithm and quaternion algorithm.
捷联矩阵更新算法是捷联系统的关键技术之一，捷联惯导系统姿态算法有欧拉角法、方向余弦法、四元数法和圆锥补偿算法等几种方法。 - The kinematical equations for the direction cosine parameters and for the Cay-ley-Klein parameters are derived by means of the isomorphic relation between the several kinds of parameters.
本文通过对四元数矩阵求导的方法，首先推得四元数参数的运动学方程，再依据几种参数间的同构关系，即很方便地直接得到了方向余弦和凯里-克莱茵参数的运动学方程。 - A new method for calculating strapdown direction cosine matrix
求解捷联式方向余弦矩阵的一种新方法 - We simply introduce the application of quaternion numbers in inertial measurement, research the calculation of direction cosine array and introduce equal rotating vector to analyze cone error.
介绍了四元数法在惯性测量中的应用，研究了方向余弦矩阵的计算方法，并引入等效旋转矢量对圆锥误差进行了分析。 - Coordinate Transformation Based on Direction Cosine Parameters between the Object Coordinate System and the Word Coordinate System
基于方向余弦参量的物坐标系与世界坐标系间的坐标变换 - The pressure hydrophone array manifold can be divided into two subarray manifolds, which constitute a rotation pair, and the rotational invariant factors comprise the source's direction cosine.
其中声压水听器阵可以被划分为2个子阵，它们构成旋转对，旋转因子为包含某一轴方向余弦信息的相位延迟因子。 - Introduce the principium and method of Euler angle algorithm, direction cosine algorithm, Quaternion algorithm, and Rotation Vector algorithm.
分别介绍了欧拉角法、方向余弦法、四元数法和等效旋转矢量法的解算原理和步骤。 - The main tasks of initial alignment of the SINS guidance system are to precisely determine the initial direction cosine matrix between the carrier body coordinate system and the guidance coordinate system, as well as the initial velocity of the carrier.
惯性制导系统初始对准的主要任务是精确确定载体坐标系和制导坐标系之间的初始方向余弦矩阵和载体的初始速度。 - The results show that some inlet guiding measures must be adopted to create the tumble movement with steady flow direction in all valve lift range, and the in-cylinder tumble movement intensity was distributed around the circle of cylinder as sine or cosine function.
结果表明：要在全升程范围内形成方向稳定的滚流运动，必须对进气流采取适当的导流措施； - Iterative method founding displacement equations and direction cosine equations of robot
建立机器人位移方程和方向余弦方程的迭代法 - By using the direction cosine matrices as the major mathematics tools and basing the dynamics analysis about the output shaft of the tripod universal joint, the additional bending moments of the input shaft are derived, which would cause the serious vibration at the high speed movement.
以方向余弦矩阵为工具，在三叉杆式万向联轴器输出轴动力分析的基础上，推导出输入轴所承受的附加弯矩，找出此类型联轴器在高速状态下振动产生的力学根源。 - Algorithm of transfer vector for tool semidiameter compensation base on direction cosine
应用方向余弦的刀具半径补偿转接矢量算法 - By choosing some right kinetic coordinates and using the direction cosine matrices as the major mathematical tools, the kinetic problems of the output shaft about the tripod universal joint are resolved successfully.
通过建立正确的动力学坐标系，以方向余弦矩阵为工具，成功地解决了三叉杆式联轴器中输出轴的受力问题； - By the use of matrix theory of direction cosine and Newton-Euler mechanics theory, the dynamics model of walking robot was build. This model provided theoretical basis for the structural optimization design of robot and provided mathematical model for the control algorithm of robot.
应用方向余弦矩阵理论和牛顿-欧拉动力学理论建立了机器人步行时的动力学模型，为机器人的结构优化设计提供了理论依据和为机器人的控制算法提供了数学模型。 - Analytic Orthogonalization of Direction Cosine Matrix
方向余弦矩阵的解析正交化 - Several common description methods for rotational kinematics are discussed in control point, such as direction cosine matrix, Euler angles, quaternions and Rodrigues/ Modified-Rodrigues parameters. Transformation relationships, advantages and disadvantages among those methods are discussed.
从控制角度综评方向余弦、欧拉角、四元数和Rodrigues/修正Rodrigues参数几种常用姿态描述动态方程，指出各种方法的优缺点，及相互转化。 - The azimuths of the elements are described by direction cosine and Euler quaternion, respectively. The shape function of the element is selected to describe the basic elastic mode.
它们的空间方位分别用方向余弦和欧拉四元数表示；对每种单元选择适当的形函数描述单元的基本弹性模态。 - And the differential equation of coordinate transformation matrix is derived through the establishment of the direction cosine matrix from navigation coordinate frame to aircraft-body coordinate frame.
在导航算法方面，采用方向余弦矩阵法进行姿态解算，建立导航坐标系到机体坐标系的方向余弦矩阵，并推导出方向余弦矩阵的微分方程。 - We construct a new directional filter bank with flexible direction and frequency selectivity by cascading checkerboard-shaped filter pairs and the cosine modulated filter bank.
通过将二维棋盘形滤波器和二维可分离余弦调制滤波器组相结合，构造了具有灵活的方向和频率选择性的新的方向滤波器组。