In order for AUV to follow the predefined path,the cross track error con- trol and line of sight control are combined.
给出了简化的水下航行器水平面运动模型,提出了采用横向轨迹误差法和视线法相结合的基于滑模的航向控制方案,从仿真结果可以看出该控制方案具有良好的轨迹跟踪能力,能够保证水下航行器进行各种循迹航行任务。
And according to the need of stabilizing the vision angle,a adaptive variable structure guidance law which uses line of sight angle and line of sight angel velocity as the variables is applied to simulate considering the math model of orbit engine and intercepor kinematics.
针对需要保持侧窗视线角稳定的要求,根据以视线角和视线角速度为变量的状态方程,采用了自适应滑模变结构控制的制导律,并根据拦截器轨控发动机和拦截器运动学的数学模型进行了仿真,得到了较好的拦截效果,验证了制导律的正确性。
With the nonlinearity of bi-directional mirror scan, motion of spacecraft and attitude variability, the model of the line of sight and Projection for Landsat 7 are very complex, and it cost much time during systematically geometric correction.
Landsat7采用双向扫描的方式,由于扫描非线性及卫星姿态和轨道的波动,使得建立卫星视线的计算量增大。
The partition of polygon based on line of sights is analyzed,then the concepts of key events of gap and window about viewshed in polygon are delivered.
分析了基于视线扫描的多边形分割情况,进而提出了视域的沟、窗口等概念,分析了沟变化的关键事件,通过对沟的关键事件的形式化描述和处理,在有关的引论下给出了多边形点视域具体的解决方法,此方法的复杂度与多边形的拐点相关。
The sight lineand the road are two key elements of the space-experience of buildingexcept their importance for the using function.
视线与路线的设计除了对建筑功能具有重要意义外 ,还是建筑空间体验中的两个不可或缺的要素。
Design and Implementation of 3D Scene Wandering Algorithm Based on the Line of Sight;
基于视线的3D场景漫游算法的设计与实现
Objective To examine the related spatial and temporal characteristics of eye movement in HCI design and to provide ergonomic parameters to optimize the HCI design based on eye tracking.
目的研究人 -计算机界面设计中的眼动时空特性 ,为优化基于视线追踪技术的人 -计算机界面设计提供工效学参数。
Method The visual search time and selection time of interaction were recorded by eye tracking system, when 14 participants were performing the task of pull down menu selection, with different menu length, type of menu item and position of target item.
视线追踪系统记录交互过程的视觉搜索时间和选择反应时。
The researchers may introduce the eye tracking technique into usabili.
由于传统工效学测试方法普遍存在着主观性强、样本量小、外部效度低等问题 ,将视线追踪技术引入可用性测试领域 ,尤其是应用到视觉用户界面评估过程中 ,能显著提高可用性测试的客观性和有效性 ,并有助于揭示用户的认知加工过程。
This paper first analyzed the significance and feasibility of applying eye tracking techniques in the study of drivers visual search characteristics of traffic signs.
视线跟踪技术是利用眼动仪来跟踪人的眼部运动,获取人的视线方向、持续时间等特征参数的新兴技术。
This paper looks back the study history and puts forward basic concept and metrics definitions of eye tracking technology.
文章在回顾视线跟踪技术的研究历程基础上,定义了视线跟踪的基本概念和参数。
A short survey about eye tracking research work is given.
回顾了视线跟踪技术的研究历程,系统地归纳总结了基于光学记录方法的视线跟踪算法,在此基础上,设计了一种通用视线跟踪系统实现框架,描述了基于瞳孔-角膜反射向量法的视线跟踪系统的基本构成,分析了该系统的关键算法功能。