因为当棱镜置于会聚光束中时，离轴漂移造成有像散的像，格兰型棱镜的成像质量比尼·科尔型略好。
Since off-axis wander results in images which have astigmatism when the prism is placed in a converging beam, Glan types have slightly better imaging qualities than Nicla types.
分析了半长轴和倾角摄动变化率，以及初始半长轴和倾角偏置量对地面轨迹漂移的影响。
The effect of rate of change for semimajor axis and inclination perturbation and drift of semimajor axis and inclination on the ground-track drift was analyzed.
推导了硅微机械振动轮陀螺仪的动力学方程，给出了它的运动规律，分析了载体绕空间任意轴匀速旋转时干扰力矩所引起的漂移率。
This paper gives the dynamic equations of vibratory wheel silicon micromechanical gyroscope and their motion law, analyses drifts of the gyroscope, when vehicle rotates around any axis uniformly.
根据动力调谐陀螺与重力相关漂移项的特点，提出了双轴平台陀螺漂移误差的补偿方法。
Methods of error compensation for gyro drift of two axes platform is presented according to DTG characteristic.
在噪声统计未知或时变的情况下，每个位置采用自适应卡尔曼滤波解算出平台各轴的漂移角速率，并在此基础上辨识出漂移参数。
In case of the noise statistic being unknown or variable, adaptive Kalman filter is used to get drift speed of each axle at each test position, and then drift parameter is calculated.
目的观察和分析儿童白内障摘出人工晶状体植入术后的眼轴变化及近视漂移。
Objective To assess the ocular axial length and myopic shift in pediatric patients after unilateral cataract surgery and intraocular lens implantation.
通过安装在双轴平台上的加速度计测量载体姿态，并计算重力在陀螺两个测量轴的分量，建立了陀螺漂移模型，对方位漂移进行补偿。
Accelerometer of platform is used to measure the attitude of carrier. Gravity component at two input axes of DTG is calculated. The Gyro drift model is made to compensate the azimuth.
通过安装在双轴平台上的加速度计测量载体姿态，并计算重力在陀螺两个测量轴的分量，建立了陀螺漂移模型，对方位漂移进行补偿。
Accelerometer of platform is used to measure the attitude of carrier. Gravity component at two input axes of DTG is calculated. The Gyro drift model is made to compensate the azimuth.
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