导航

Nimrod MRA4 is equipped with a Navigation and Flight Management System from Smiths Industries.

MRA4型采用了史密斯公司的导航和飞行控制系统。

This paper makes a comparative analysis on the function of six cross-database search systems such as SearchLight, NLM Gateway, ISI CrossSearch, CALIS, CSDL and CNKI at home and abroad. In aspects of resources navigation, search function, search results display, content sensitive links, personalized service, special function, as well as other functions, the author puts forward some suggestions on the perfection of cross-database search system function.

选取国内外较有代表性的6个跨库检索系统：SearchLight、NLM Gateway、ISI CrossSearch、CALIS的统一检索平台、CSDL的集成检索系统、CNKI的跨库检索系统，从资源导航功能、检索功能、检索结果显示功能、内容敏感链接功能、个性化服务功能、特色功能、其他辅助功能7个方面对其进行比较分析，提出完善跨库检索系统功能的几点建议。

This is why inventing new kinds of navigation structures or using nonstandard conventions hurts users so much.

这也是为什么发明新的导航结构和不规范的东西会伤害到用户。

You have your normal 3D navigation view up to 800 metres from the junction.

您的正常三维导航视图高达800米，从交界处。

The user interface 6 may include an eject button for manually unloading removable media; up/down buttons for navigating a list of items, enter/exit buttons for selecting items or exiting from a menu or list; one or more status displays, such as a light or LED, a numeric display, and alphanumeric display, etc.

用户界面6可包含用于手动卸载可更换介质的弹出按钮；用于对项目列表导航的上／下按钮；用于选择项目或者离开菜单或列表的进入／退出按钮；一个或多个状态显示，例如灯或LED、数字显示和文字数字显示，等等。

Its numeric keypad is perfect for spreadsheets and finance applications.

它的扩展面板包括文件导航控制和数字键盘。

This paper gives the analysis formulas and correction algorithms for influence on thesystem error, Observational Gross Error and the noise correlation, which enriches theKalman filter theory, and at the same time raises the capabilities of kinematicpositioning and navigation.

论文对于系统误差，测量粗差，噪声时间的相关性对动态定位结果的影响，给出了其相应的解析式和校正方法，丰富了卡尔曼滤波理论，同时提高了动态定位和导航的能力。

The navigation function can be realized by combining the information of the platform attitude and an odometer.

最后综合运动载体的姿态和里程计信息，可以实现导航功能。

The navigation subsystem of the mobile robot fuses the position estimation obtained by a vision system with the position estimated by odometry using a Kalman filter.

移动机器人的导航子系统利用卡尔曼滤波器，融合由视觉系统与由里程计获得的位置估计值。

As one part of the project, the dissertation is developed with thelocalization problem in mobile robot navigation. Combined with "MobileRobot 1 of Central South university (MORCS-1)", a mobile robot designed byus that equipped with a 2D laser measurement system to sense the environmentand the proprioceptive sensors such as the odometry, gyroscope to calculate itsdead reckoning, the approach about the four kind uncertainty factors of mobilerobot localization is studied. These researches include that the error analysisand calibration of position sensors is implemented to reduce the measurementnoise, the 3D kinematic model of mobile robot is built to gain the accuratepose in complex terrain, some work on the automatic detection of static ordynamic obstacles based on laser scanner is investigated to eliminate thedynamic influence of the environment and to realize the reliably absoluteposition, and lastly a robust algorithm is presented to involve the incrementalenvironment mapping and self-localization of mobile robot with unknown dataassociation and to improve the self-localization performance of mobile robotunder unknown environment.

作为该项目研究的一部分，本论文以移动机器人导航中的定位问题为研究内容，利用自行研制的装配有二维激光雷达环境感知系统，并通过里程计、陀螺仪等内部传感器来实现航迹推测的移动机器人"中南移动1号MORCS-1"，重点围绕影响移动机器人系统定位的四类不确定性处理展开研究：通过移动机器人定位传感器的误差分析及校准，旨在消除传感器噪声所带来的测量误差；通过建立移动机器人的三维运动学模型进行航迹推测，以期实现复杂地形下精确的移动机器人本体姿态感受；通过基于激光雷达的动静态障碍的自主检测等相关研究，尽量消除环境的不确定因素影响进而实现可靠的移动机器人绝对定位；通过以上研究，针对未知数据关联下移动机器人增量式环境建图与自定位的研究提出一种鲁棒的滤波算法，改善未知环境中移动机器人自定位的性能。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。