The invention is characterized in that: according to the reference ephemeris and the reference vector and the observation vector observed by a star sensor, the spacecraft attitude quaternion can be gotten through Euler-q counting method; through DD2 filter, on one hand, feedback compensation the attitude matrix obtained through resolving by gyro; on the other hand, revise the palstance output of three-axle gyro and conduct compensation to the constant drift of gyroscope.
其特征在于根据参考星历和由星敏感器观测得到的参考矢量和观测矢量，通过Euler-q算法获得航天器姿态四元数，经过DD2滤波，一方面反馈校正陀螺解算获得的姿态阵，另一方面，修正三轴陀螺角速度输出，对陀螺仪的常值漂移进行补偿。
A frame is set up in this paper that the unit vector of the star is taken as Z axis of the frame, and all the constant gyro drifts of inertial navigation system are projected on to the frame. This paper proves that the gyro drift's component along Z axi...
如果建立一个以星体方向为Z轴的坐标系，并将陀螺漂移投影到该坐标系，文中将证明绕该坐标系Z轴方向的陀螺漂移是不可观测的，并分析由此引起的导弹落点误差。
River river filled with beautiful lanterns, see Jiang level, 10 million of the river burning lanterns drift slowly in the water, as the star lights a lamp with the stars each other, hard Love will Tear Us Apart.
河两岸摆满了漂亮的河花灯，再看江面上，千万盏燃烧的河花灯在水中慢慢漂流，象星星点灯，与天上的星星交相辉映，分不清天上人间。
Underneath the cool street style of any top drift machine is loads of power, and the Nitro 3 Drift is no different: the power of the mighty HPI Nitro Star G3.0 engine gives you all the horsepower you want for huge top speeds and long tyre-smoking power slides in every turn!
下冷静街的作风，任何顶端漂移机负载的权力，和硝基三漂移是没有什么不同：权力强大的国际小母牛硝基明星g3.0引擎，让您所有的马力，您要为庞大的最高时速和长期轮胎吸烟的权力，幻灯片，在每一个转！
After a book is shelved Who knows when it will be found A stretched bow not yet fired Finds no target, and arrows are lost Hearing the wind comb the forest's limbs I follow, and drift far away in thought Watching the sun descend into the ocean How I envy the trembling evening star.
一本书高搁以后不知要到那年那月拉起弓射出之前找不到标的，也丢失了箭听风在林梢穿过便随着它，出神去远看夕阳落海的美景却仰慕一颗颤颤的黄昏星
As reported, the celestial guidance of single-star scheme can correct initial localization, orientation errors and constant drifts of gyro in mobile launching ballistic missile, while we consider that the scheme can only compensate for partial constant gyro drift.
有参考文献认为，采用单星制导即可以估计和补偿初始定位误差、初始方位误差、陀螺常值漂移等误差源导致的弹载惯导系统定位误差，但我们认为，单星制导不能估计出全部的常值陀螺漂移。
Differences between predicted and actual star positions are used to determine the spacecraft payload attitude and to compensate for radiometer pointing errors due to orbit, attitude drift and thermal distortion.
根据理想指向位置和实际探测位置间差异，确定有仪器姿态，补偿由于轨道、姿态漂移和热形变引起的成像仪光轴指向变化。
Simulation Analysis for Attitude Drift of Spin Satellite in Double Star Project
科学双星自旋轴姿态漂移的仿真分析
With the rapid aerospace development, the space navigation equipment becomes important, especially the star sensor with high accuracy and no time-drift.
随着航天事业的迅猛发展，天文导航设备日益受到重视，其中，测量精度高且无时间漂移的星敏感器备受青睐。