指向精度

第二代CCD星跟踪器作为飞行器姿态测量仪器，因其指向精度高、无姿态累积误差、快速的故障恢复能力和智能化而受到人们的青睐。

Using the second generation of CCD star tracker as the spacecraft attitude measuring instrument is found favor in somebody ′ s eyes for its high pointing accuracy , without attitude accumulated error , fast fault recovery capability and intelligence .

宽带相控阵雷达波束指向精度的研究

Investigations of Beam Pointing Accuracy in Wideband Phased - Array Radar

从工程实践角度，探讨了在目前广泛采用的偏置动量轮三轴姿态稳定卫星上，进行大尺寸（3～5m）和高指向精度（0.05°）的挠性天性指向控制问题。

From engineering practice , the paper discusses the flexible antenna pointing control problem in momentum bias system which is widely used . The flexible antenna has large size ( diameter from 3m to 5m ) and requires high pointing precision ( 0 05 °) .

利用恒星标校卫星激光测距经纬仪指向精度

Calibrating the pointing precision of satellite laser ranging theodolite by observing stars

热透镜谐振腔参数对指向精度的影响

Influence of the Thermal Lens Resonator on the Pointing Stability

提高相控阵天线波束指向精度的方法

Method for Improving the Beam-Steering Accuracy of Phased Array Antenna

卫星摄动对地面站天线指向精度的影响

Influence of Satellite Perturbation on Pointing Accuracy of Earth-Station Antenna

火炮随机激励对天线指向精度的影响

The Effect of Gun Random Excitation on the Pointing Accuracy of an Antenna

星体弧长法标定光电经纬仪指向精度

Calibration of Pointing Accuracy with Electro optic Phototheodolites by the Star Arc length

机械振动对光学系统指向精度的影响

Vibration Effects on Pointing Precision of Optical System

视轴偏心三轴跟踪机架指向精度分析

Analysis for pointing error of three - axis photoelectric theodolite with collimation axis eccentricity

而转台模型不仅指向精度高，而且稳定性也很好。所以转台模型在实际应用中会得到了很好的效果。

So there will be good results after application of mount model in practical use .

实验结果表明，优化后的热透镜谐振腔具有较高的指向精度。

The experiment shows that the optimized thermal lens resonator has the better pointing stability .

适当随机相位量化对和差波瓣指向精度的改善

Improvement of Phase Control Beam Pointing for Sum and Difference Pattern by Appropriate Random Phase Quantization

仿真和实践结果表明，应用此算法的天线波束指向精度较高。

Results of simulation and practice prove that this method improves the precision of beam direction .

研制结果表明，跟踪精度和指向精度等性能全部达到设计指标。

The results indicated that the pointing accuracy , tracking accuracy performance are in the desired ranges .

其中可控数字移相器的使用，是相控阵天线优越性能实现的关键，但由此引入的相位量化误差，严重影响了相控阵天线的波束指向精度。

The key for phased array antennas with good functions is the use of controllable phase shifters .

另外，人们对天线的指向精度和跟踪精度也提出了更高要求。

In addition , we put forward higher requirement for the pointing accuracy and tracking precision of antenna .

望远镜指向精度是卫星激光测距系统的一项重要指标。

Pointing precision of telescope is one of the important items for satellite laser ranging ( SLR ) .

未来复杂航天器应该按照期望的指向精度和稳定度来设计恰当的姿态控制系统。

For future complex spacecrafts , appropriate attitude control system should be designed according to desired accuracy and stability .

二可能值法是一种随机馈相法，引入了噪声，反而使相控阵天线的波束指向精度大为降低。

TPVM is a kind of random phase feeding method , which imports noise and decreases the accuracy greatly .

为了提高波束指向精度，设计一种改进型电控相移单元。

In order to improve the beam pointing accuracy , an improved electronic control phase shift element is designed .

最后，根据数值仿真结果，给出了影响挠性天线指向精度的主要因素。

Finally , after a close loop digital simulation , the paper summarizes the main factors affecting antenna pointing precision .

星体标校技术是利用恒星在天球上的准确视位置标定光电经纬仪的指向精度。

Calibration technology of the star makes use of true pointing of star to calibrate pointing accuracy of electro optic phototheodolite .

为提高磁通门罗盘的指向精度和稳定性，提出了磁通门罗盘的数字信号处理方法。

In order to improve the pointing precision and stability of fluxgate compass , a digital signal processing method was put forward .

文中给出了一种利用观测恒星标校卫星激光测距经纬仪指向精度的方法。

A method of calibrating the pointing precision of the laser ranging theodolite by observing the stars is described in this paper .

有效地控制某系统相控阵天线的指向精度，是保证整个系统精确定位的关键问题。

How to control precision of phased array antenna system is a key problem of controlling the pointing precision of antenna system .

而对相控阵天线来说，天线指向精度是衡量相控阵天线性能的重要指标。

As to phased array antenna , the antenna pointing precision is a principal specification in weighing the performance of phased array antenna .

空间光调制器的像素数和相位量化调制特性限制了其波束指向精度。

Steering accuracy is limited by the quantized phase modulation values and the number of phase pixels for spatial light modulators ( SLMs ) .

第三，在红外相机跟踪目标阶段，研究了星本体的姿态稳定控制以及有效载荷的指向精度问题。

Finally , attitude stabilization control of the satellite and pointing precision of the payload are researched in the phase of infrared camera tracking object .