自跟踪

Experimental results show that the proposed method is fast, stable and accurate, and the measuring accuracy of the modified CCD laser autocollimator is improved from 2 arcsec to ±0.25 arcsec in 0.23 s using the proposed method.

实验结果表明，该定位方法稳定性好，定位精度高且实时性强，应用该方法改进后激光CCD自准直仪的测量精度由2"提高到±0.25"，且单次测量时间小于0.23 s，可满足激光CCD自准直仪在小角度测量和瞄准跟踪等领域的高精度实时测量需求。

This indicates that it is impossible to design a Clarke-Gawthroptype self-tuning controller or an adaptive pole placement controller for unknown nonminimumphase plants to track arbitrary bounded set point sequences asymptotically.

这表明对未知离散非最小相位系统，不可能设计Clarke－Gawthrop型自校正控制器或自适应极点配置控制器去渐近跟踪任意有界设定序列。

Based on the diffeomorphism transformation and Lyapunov direct method, controllers for the reference yaw angle and the reference speed are designed.

首先应用微分同胚等效变换和Lyapunov直接法设计参考航向和参考速度，然后对船舶模型参数不确定的操纵环路和推进环路分别设计神经网络稳定自适应控制器跟踪参考航向和参考速度，并对外界风浪流干扰进行自适应补偿。

The Early Autism Study, led by Mel Rutherford, associate professor of psychology in the Faculty of Science, has been using eye tracker technology that measures eye direction while the babies look at faces, eyes, and bouncing balls on a computer screen.

科学系心理学卢瑟福副教授是早期自闭症研究的领头人，一直以来采用人眼跟踪技术，也就是说当孩子们看电脑屏幕上出现的各种面孔、眼睛和弹起的球时，通过测量他们的视线来判断是否患自闭症。

We confirmed that the adjacent layer interpenetration is severe and the re-organization of the components occurs in the deposition process.

首次利用动态接触角法跟踪自组装膜的形成过程，阐明了聚电解质组分在膜上的穿插重排行为，疏水相互作用对膜形成的贡献，组装条件尤其是水洗和干化对自组装的影响。

By applying the concept of "dominant input",the existence of both the approximation error and external disturbance which are supposed to have unknown boundaries is considered.What's more,the adaptive law utilizes two types of errors in the adaptive fuzzy systems,the tracking error and approximation error.

该方法应用"主导输入"的概念，同时考虑了函数逼近误差和系统外扰的存在，假设了该系统逼近误差和系统外扰有界但界未知的情况；并探讨了自适应模糊控制器的参数自适应律由跟踪误差和逼近误差共同进行调节。

In this paper, a typical robot system manipular is taken for an example, by adopting backstepping control, adaptive neural network and damping scheme, a smooth robust adaptive controller is achieved to track the given reference trajectory and swicthing is avoided.

本文以典型的机器人类系统机械臂为例，使用反步控制结合自适应神经网络和非线性阻尼技术，给出了一种光滑的鲁棒自适应控制器来跟踪给定参考轨迹，避免了控制器的切换。

Methods forty patients with head/neck 16 slice CT angiograph were divided into two groups at random,each group has 20 cases, the plain scan and the CTP was performed before CTA to all 40 cases. Group A use CTP to obtain the peak time of contrasted artery as CTA delay time, and scan from head side to foot side. Group B use contrast media automatic bolus tracking to obtain delay time,scan from foot side to head side.two groups CTA images were collated.

使用16排螺旋CT对40例患者行头颈部CTA检查，随机分为两组，各20例，所有患者在CTA之前行脑CT平扫及脑CT灌注扫描，A组以CTP所显示的动脉峰值时间作为CTA的延迟时间，扫描方向为自头侧向足侧。B组使用造影剂浓度实时监控跟踪触发技术确定延迟时间，扫描方向自足侧向头侧扫描，两组CTA图像相对照。

The curing process of the resin system was analyzed by FTIR. The result of study was showed that BMI auto polymerization, BCE since auto polymerization, BCE copolymerizing with BMI, BCE with EP copolymerize reacting etc. existing in the curing process.

用FTIR对树脂的固化进行跟踪分析，研究结果表明，体系的固化反应中包含BMI自聚合反应、BCE自聚合反应、BCE与BMI共聚反应、BCE与EP共聚反应等。

Based on Current Statistical Model for target tracking, a modified maneuvering target model and adaptive filtering algorithm is presented by acceleration and the relation between maneuve trix of process noise.

在&当前&统计模型的基础上，通过修正目标加速度的概率分布、机动加速度与方差的自适应关系及过程噪声协方差矩阵，提出了一种修正的机动目标模型及其自适应跟踪算法。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失