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固定目标
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  fixed target
    Stability condition of the proportional control algorithm is gi ̄ven for a fixed target.
    针对固定目标,文中给出了比例控制算法的稳定性条件.
短句来源
  fixed object
    In this paper, aiming at the task that the three-joint eye-in-hand robotic visual servo system picks a fixed object, some self-adaptive fuzzy control method such as fuzzy control method, parameter self-adaptive fuzzy control, fuzzy neutral network control are studied to conquer the influences of nonlinearity , coupling and uncertainty existed in robotic visual servo system.
    本文针对3关节工业机械手采用单目eye-in-hand方式抓取固定目标的工作任务,研究了基于模糊控制方法的机器人视觉伺服控制器和基于参数自适应模糊控制、模糊神经网络控制等自适应模糊控制方法的机器人视觉伺服控制器,以克服机器人控制系统中非线性、强耦合、不确定性等因素对控制性能的影响。
短句来源
  “固定目标”译为未确定词的双语例句
    A binocular stereovision technique used in 3-D terrain mapping system of helicopter radar is represented. By means of binocular camera system(2-CCD), the space position measurement of any point illuminated by a He-Ne laser is achieved.
    讨论了用于直升机着陆激光雷达地形测量系统的双目立体视觉方法,并利用双CCD系统实现了对激光器照射到固定目标表面上任意单点的三维空间坐标测量。
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  fixed target
We develop the color dipole gBFKL phenomenology of a diffraction cone for photo-and electroproduction γ*N-VN of heavy vector mesons (charmonium >amp;amp; bottomonium) at HERA and in fixed target experiments.
      
The results of experimental investigations of Drell-Yan dimuon production in pBe and pW collisions at an energy of 800 GeV on a fixed target are analyzed.
      
Instead of reducing the dynamics to one particle potential scattering, the scattering amplitude for fixed target configurations is averaged over the target groundstate density via stochastic integration.
      
Possible experimental searches of doubly charmed baryons and tetraquarks at fixed target experiments with high energy hadron beams and a high intensity spectrometer are considered here.
      
Measurements in the E866/NuSea 800 GeV fixed target experiment show a large suppression of the closed-charm yield with strong kinematical dependencies and with a slightly stronger suppression for the Ψ' than for the J/Ψ near xF=0.
      
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  fixed object
Subjects could partially inhibit the vestibulo-ocular reflex (VOR) in the dark when they imagined a head-fixed object.
      
The increase in sway and movement after eye closure was reduced significantly when the subjects were allowed to use one forearm to touch a spatially fixed object from below.
      
Finger coordination during moment production on a mechanically fixed object
      
To investigate, subjects reached to a spatially fixed object whose retinal location was varied by fixating points 0-80° to the left of the object.
      
The friction coefficient of the Fokker-Planck equation is found to be a functional of the solution of Dorfman, van Beijeren, and McClure's extended Boltzmann equation for a fixed object in a flowing gas.
      
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One of the most important problems in space based robotics is the disturbance to the satellite attitude caused by satellite mounted manipulators operation.In this paper the dynamic equations and conservation of angular momentum of a space manipulator system which are considered subject conditions are developed by using the “Virtual Manipulator Mode”;According to skew Matrix about skew motion of rigid body,we put out with a function to comment on the attitude change of rigid body;the we present a technique called“periods...

One of the most important problems in space based robotics is the disturbance to the satellite attitude caused by satellite mounted manipulators operation.In this paper the dynamic equations and conservation of angular momentum of a space manipulator system which are considered subject conditions are developed by using the “Virtual Manipulator Mode”;According to skew Matrix about skew motion of rigid body,we put out with a function to comment on the attitude change of rigid body;the we present a technique called“periods motion“to find an globally optimal path planning in form of analytic function solution.

本文根据刚体螺旋运动的特点,利用旋转矩阵构造出评价载体姿态变化的目标函数;采用Vafa等人的“虚机械臂”模型简化计算;利用动量矩守恒的假设条件及完成抓取固定目标时的几何位形关系,得到微分约束和边界约束。提出机械臂“周期运动”寻优法,从而得到全局优化的近似解析解。

A binocular stereovision technique used in 3-D terrain mapping system of helicopter radar is represented. By means of binocular camera system(2-CCD), the space position measurement of any point illuminated by a He-Ne laser is achieved. First, the calibration of points are analyzed with the least squares algorithm. Second, an effect of orthogonal constraint condition on the tolerance of laser range is analyzed. And a 2-CCD experiment system is established. The result shows that 2-CCD systems contribute to improve...

A binocular stereovision technique used in 3-D terrain mapping system of helicopter radar is represented. By means of binocular camera system(2-CCD), the space position measurement of any point illuminated by a He-Ne laser is achieved. First, the calibration of points are analyzed with the least squares algorithm. Second, an effect of orthogonal constraint condition on the tolerance of laser range is analyzed. And a 2-CCD experiment system is established. The result shows that 2-CCD systems contribute to improve the range precision and are suitable for the measurement of 3-D terrain surface.

 讨论了用于直升机着陆激光雷达地形测量系统的双目立体视觉方法,并利用双CCD系统实现了对激光器照射到固定目标表面上任意单点的三维空间坐标测量。首先应用最小二乘法对既定标定点三维空间坐标的测量进行了分析,提出了标定点列的优化原则;然后分析了正交约束条件对测距误差的影响,并建立了双CCD激光测距实验系统。理论分析和实验结果表明,选择经分布优化的标定点列和采用正交约束条件可以使目标点的各向测距误差在总体上得到优化,从而使得双CCD系统在近距测量中有较高的测量精度,适合于三维面形的测量。

Based on the general uncalibrated visual servoing algorithm,this paper presents a new visual servoing control scheme which estimates pseudo-inverse of image Jacobian matrix based on recursive least square algorithm.This method doesn't compute the Moore-Penrose inverse of image Jacobian.Stability condition of the proportional control algorithm is gi ̄ven for a fixed target.For moving targets,the quasi-Gauss-Newton and trust region visual servoing control strategies are deduced based on pseudo-inverse estimation...

Based on the general uncalibrated visual servoing algorithm,this paper presents a new visual servoing control scheme which estimates pseudo-inverse of image Jacobian matrix based on recursive least square algorithm.This method doesn't compute the Moore-Penrose inverse of image Jacobian.Stability condition of the proportional control algorithm is gi ̄ven for a fixed target.For moving targets,the quasi-Gauss-Newton and trust region visual servoing control strategies are deduced based on pseudo-inverse estimation of image Jacobian matrix. In the end,the performance of three visual servoing algorithms is validated by simulations.

在一般无标定视觉伺服算法的基础上,提出了一种基于递推最小二乘法估计图像雅可比矩阵伪逆的无标定视觉伺服算法.这种方法无需计算雅可比矩阵伪逆.针对固定目标,文中给出了比例控制算法的稳定性条件.针对运动目标,推导了基于图像雅可比矩阵伪逆估计的伪高斯—牛顿视觉伺服算法和信任区视觉伺服算法.最后,仿真验证了三种视觉伺服算法的有效性.

 
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