通过计算系统可观测度和采用无迹卡尔曼滤波(ukf)对目标相对运动状态进行估计，研究了观测矢量方向和数量与相对导航精度的关系。
System observability matrix was derived, and the degree of observability was calculated. Relative motion states of non-cooperative space target were estimated through unscented Kalman filter (UKF).
最后本文采用定子磁场定向的矢量控制策略，结合转速扰动功率观测的控制算法对转子侧进行了仿真验证。
Finally, simulating experiment for the whole system is carried through with the stator flux-oriented vector strategy and control arithmetic of rotor speed perturb and power observation.
异步电功机的磁通检测和观测是矢量控制系统中的关键问题。
The measurement and observation of flux in induction motor is a key problem in vector control system.
文章从四维矢量、物理观测的角度出发，就相互运动惯性系之间的坐标变换关系进行讨论。
From the angel of four dimensions vector and physics observation, this paper discusses the coordinate transform relationship between the relative movement inertia reference frames.
该算法利用非线性最小二乘平差原理对CCD地球敏感器成像进行处理，实现了在月球表面CCD地球敏感器的矢量观测功能。
Non-linear least squares bundle adjustment is used to process the images from CCD earth sensor, consequently, the vector observation function of CCD earth sensor is achieved on lunar environment.
结合矢量观测的特点，基于最小模型误差准则给出了一种确定卫星姿态的实时估计算法，称为预测滤波算法。
Considering the character of vector observation, a real time predictive filter based on minimum model error (MME) criterion is presented for satellite attitude estimation.
测量得到了三个不同周向位置下的涡量图和速度矢量图，并观测到了叶顶泄漏涡的涡旋结构。
The velocity vector and vortical contour in three different circumference positions were successfully acquired and the structure of the tip leakage vortex was clearly illustrated.
控制算法采用转子磁链观测的矢量控制算法。
Vector Control algorithm based on Rotor Field Oriented is used.
本文提出了在交流矢量控制系统中设计线性状态观测器的新思路，并以此重构出负载扰动作前馈控制。
A novel idea of designing and applying linear state observer is presented in this paper to reconstruct the load disturbance for feed forward control in AC. vector control systems.
异步电机无速度传感器矢量控制系统需解决两个问题：转速的估计和转子磁链的观测。
Two problems must be solved in the speed sensorless Field Oriented Control of induction motor drive: the speed estimation and rotor flux observation.
仿真结果表明该转子磁链观测器可以在较大速度范围内跟踪转子磁链矢量的变化，同时对变化较大的转子时间常数具有一定的鲁棒性。
Simulations show that the proposed observer can track rotor flux vector in a large speed range and be robust to the variable rotor time constant.
这些时刻的观测信号矢量就是对混合矩阵中与该源信号对应的列矢量的估计，利用这一性质可以估计出混合矩阵。
The vectors of observation at these instants, are the estimate of the corresponding columns at the mixing matrix.
阐述如何利用地震台观测得到的地倾斜矢量图对固体潮半日波进行潮汐导纳分析。
The tide admittance analysis for the semidiurnal wave of the earth tide by use of the vector pattern of ground tilt observed at seismostations is expounded.
采用类似于交流电机磁链观测的方法来构造一个虚拟电网磁链，可以代替电网电压作为PWM整流器矢量控制中的定向矢量，达到省去交流侧电网电压传感器，降低PWM整流器成本的目的。
So a virtual line flux has been constructed to serve as the oriented vector instead of the line voltage vector to remove the AC voltage sensors and reduce the cost of PWM rectifiers.
以三维矢量传感器为核心，构建海洋矢量声场观测潜标系统。
A submerged buoy system for ocean vector sound field measurement is designed with the three-dimensional vector sensor as a core.
在矢量控制感应电动机系统中，当电机参数发生变化，或出现磁路饱和时，将会影响速度控制的准确性，使速度观测器精度受影响。
The authors analyze the influence in vector controlled induction machine caused by parameter variation and main flux saturation affects speed estimation of adaptive state observer.
针对堆积层滑坡变形破坏特点，运用灰色理论，对滑坡位移观测资料进行了处理，求出了灰色位移矢量角。
To counter the motion deformation characteristicscs of accumulation landslide. the monitored data of landslide displacement with grey theory and acqifcs displacement vector angle were dis-cussed.
为了提高舰船综合电力推进系统的性能，推导了十二相同步电动机直轴气隙磁链观测器的模型，籍此构建了十二相同步电动机矢量控制方案。
The electrical drive system performance was improved using a model of the direct-axis magnetizing flux linkage space-phasor to develop a vector control scheme for the 12-phase synchronous motor.
法拉第效应对利用怀柔磁场望远镜观测的矢量磁场计算电流螺度的影响。
The effect of Faraday rotation on the helicity computation using observations from the Solar Magnetic Field Telescope at the Huairou Solar Observing Station.
本文提出的矢量控制和扰动转矩观测器方法解决了电磁和力学耦合的问题。
The decoupling control of 3DOFM can be realized by vector control and disturbance torque observer.
本文提供了一种基于滑模观测器的永磁同步电机矢量控制系统的实施方案。
This paper presents the implementation of sliding mode observer for vector control of Permanent Magnet Synchronous Motor (PMSM).
或者直接利用观测的光球矢量场来研究磁场拓扑。
Some people investigate magnetic topology by analyzing magnetic field of photosphere directly.
根据异步电机转子磁场定向控制的基本方程序，对直接磁场定向矢量控制系统，设计了结合电压模型和电流模型优点的磁通观测器模型。
According to the fundamental equations induction motor for the field oriented control, a new rotor flux model combine with the merits of voltage model and current model is presented.
通过这四个矢量，利用空间解析几何的知识，最终推导出观测视场上风场的水平和垂直方向的矢量分量。
The horizontal and vertical wind sections of the observed field can be obtained by spatial analytic geometry operation and analysis based on the four ort…
通过这四个矢量，利用空间解析几何的知识，最终推导出观测视场上风场的水平和垂直方向的矢量分量。
The horizontal and vertical wind sections of the observed field can be obtained by spatial analytic geometry operation and analysis based on the four ort…
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