提出了一种基于目标特征的航天器间相对位置和相对姿态单目视觉测量方法。
The paper poses a measure method of relative position and attitude between spacecrafts based on monocular computer vision and feature points on the target.
对相对姿态进行了运动学和动力学分析,重点研究了相对姿态四元数运动方程。
The relative attitude is analyzed in kinematics and dynamics respectively. And the kinematics equations of attitude quaternion are studied in detail.
该测量方法可直接用于航天器编队飞行及空间站交会对接过程中的相对姿态测量。
This measurement method can be used not only for formation flying but also for rendezvous and docking of spacecrafts.
提出了一种新目标特征构型下基于单帧图像的航天器间相对位置和相对姿态测量方法。
The paper presents an optical method based-on a new target feature structure and single-image for testing the relative position and attitude between spacecrafts.
最后结合匹配点的位置信息通过计算机视觉测距原理获取探测器和小行星之间的相对位置和相对姿态。
Finally, the relative positions and attitudes between the asteroid and the explorer were obtained by computer vision principle associated with the position of the matching points.
针对相距公里级的编队卫星,相对状态估计精度为:相对位置达厘米级,相对姿态角达角分级,相对钟差达十纳秒级。
The results indicate that the accuracy of relative position reaches centimeter, the relative attitude reaches minutes and the clock bias reaches about ten nsec.
实际上,一些能够积极有效监管属下,产品,市场和技术的经理却为与自己相对的上司之间假想了一个极其被动的反馈姿态。
Indeed, some managers who actively and effectively supervise subordinates, products, markets, and technologies assume an almost passively reactive stance vis-a-vis their bosses.
我在这里不是要讨论这种态度的道德问题;只是注意到,在开发人员和最终用户采取这种互相对立的姿态时,安全性正在不断地被破坏。
My point is not to argue with the ethics of this stance; it's just to observe that security consistently crumbles when developers and end-users adopt such adversarial stances toward each other.
对非合作航天器的相对位置和姿态测量问题进行了研究,提出了一种新的单目视觉测量算法——相似迭代算法。
A novel monocular vision-based relative position and attitude measurement algorithm named as the Similar Iteration algorithm is presented for non-cooperative spacecrafts in this paper.
论述了空间姿态敏感器表面材料测量的基本原理,即光谱漫反射基本原理和光谱相对空间反射分布测量原理。
The measurement principle of the surface material property of spatial attitude sensor is introduced, including spectral diffuse reflectance and the relative reflectance distribution in space.
航天器间相对位置和姿态的确定是实现航天器编队飞行的重要基础。
The precise detection of the relative position and attitude between spacecrafts is very important, which is the base of autonomous control for spacecraft formation-flight.
在建立运动学数学模型时,运动学逆问题是给出操作器相对于基坐标系的位置和姿态,求解其关节变量。
While setting up mathematics model of kinematics, inverse problem against kinematics is to give out the position and pose of manipulator based on the base coordinates and solve its joint variable.
最后,基于优化的总体最小二乘解确定光学特征点相对世界坐标系的姿态。
Finally, the attitude of optical characteristic points relative to the word coordinate system was obtained based on the optimization solution.
设计了针对空间非合作目标对接段的滤波器,能够提供对接段相对位置、速度、姿态角及角速率估计信息。
A navigation filer design is provided for final docking phase to provide estimated information of relative position and velocity and Angle and angle-rate.
相对于map坐标系的移动平台的姿态,不应该随时间显著移动。
The pose of a mobile platform, relative to the map frame, should not significantly drift over time.
编队卫星的控制和应用需要确定编队卫星的运动状态,包括卫星绝对的和相对的位置、姿态以及钟差。
Control and application of satellite formation require measurement of the formation states, including absolute and relative position, attitude and clock bias separately.
移动机器人在实际应用中首先遇到的就是机器人本身的定位问题,即移动机器人根据各种信息判断自身与环境的相对位置和姿态的问题。
The localization problem is a key problem in mobile robotics. It is estimating a robot's pose relative to its environment from sensor data.
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。
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.
运用正向运动学模型,根据PWLER各驱动轮的转速可估算出机器人相对于绝对坐标系的位置和姿态。
The robotic forward kinematics model can estimate the position and orientation of the PWLER robot relative to the world coordinates using each driving wheel's rotational velocity of the robot.
设计了针对空间非合作目标对接段的滤波器,能够提供对接段相对位置、速度、姿态角及角速率估计信息。
A filter design for rendezvous and docking with non-cooperative target was also given which can provide estimation information of relative position, velocity, attitude Angle and angular rate.
考虑控制输入耦合,建立服务航天器对目标航天器的相对位置和姿态一体化耦合动力学模型。
Considering coupled control inputs, an integrated coupling relative position and attitude dynamic model of the on-orbit servicing spacecraft is built with respect to the target spacecraft.
文章给出了航天员的相对位置控制策略,并将全系数自适应控制和PID控制方法用于追踪器的姿态控制。
The relative position control strategy and method of the pilot are proposed. The all-coefficient adaptive control and PID control method are applied to the relative attitude control.
非合作的机动多目标相对于雷达射线的姿态是时变的,而且目标间可能存在相对运动,给逆合成孔径雷达(ISAR)成像造成较大困难。
Inverse synthetic aperture radar (ISAR) imaging of non-cooperative maneuvering multi-target is a challenging task due to its time-varying orientation and the relative motion among targets.
建立了小卫星相对轨道和姿态的误差动力学模型,根据作业任务和姿态指向要求确定了小卫星相对轨道和姿态的期望运动;
Positional and attitude error dynamics model of small satellite relative to a target satellite was derived, then the desired relative orbit and desired attitude of small satellite were designed.
对每个零件建立了局部坐标系,计算出不同零件之间的相对位置姿态。
The relative position and orientation between different components are computed as long as local coordinate system is set up to each component.
实验结果表明,该方法具有精确度高、速度快、可实时获得支撑喉镜的相对位置和姿态等优点。
The results of the experiment indicate that this method has many advantages, such as high precision, high speed and getting the comparative position and orientation of the laryngoscope timely.
这种方法简单所需的运算量也较少,通过测量能给出追踪飞行器相对于目标飞行器的位置和姿态角。
The method is simple, requires little computation. the relative position and attitude Angle of the trace spacecraft can be given through measuring.
在分离基础上,还要保持正确的飞行姿态,确保相对导航设备工作正常。
In the separation of basis, and keep the right attitude, ensure that the relative navigation equipment is working properly.
在分离基础上,还要保持正确的飞行姿态,确保相对导航设备工作正常。
In the separation of basis, and keep the right attitude, ensure that the relative navigation equipment is working properly.
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