导航

Strap-down inertial navigation system is a kind of advanced inertial navigation technology, which is the developing direction of inertial navigation.

捷联式惯性导航系统是一种先进的惯性导航技术，是近年来惯性技术的一个发展方向。

On the airship navigation instrument board automatically is dodging each kind of colored ray, I know that is automatic navigation driving, the airship has been established in advance the fixed route and the goal.

飞船的导航仪器板上自动地闪着各种彩色光芒，我知道那是自动导航驾驶，飞船已被预先设定了固定路线和目标。

Multimission avionics system is one of the important difference between the F-15 and other fighter aircraft. The system is found of head-up display, advanced APG-63 or APG-70 radar, inertial navigation system, flight instruments, ultrahigh frequency communicati**, tactical navigation system and instrument landing system.

能执行多种任务的电子系统也是F-15和其他战斗机的一个重要区别。F-15的电子系统由平视显示仪、APG-63(下图，或APG-70)火控雷达、惯性导航系统、飞行控制系统、高频无线电通信设备、战术导航系统、自动着陆系统组成。

The system is found of head-up display, advanced APG-63 or APG-70 radar, inertial navigation system, flight instruments, ultrahigh frequency communications, tactical navigation system and instrument landing system.

能执行多种任务的电子系统也是F-15和其他战斗机的一个重要区别。F-15的电子系统由平视显示仪、APG-63(下图，或APG-70)火控雷达、惯性导航系统、飞行控制系统、高频无线电通信设备、战术导航系统、自动着陆系统组成。

In fact, Autonomous navigation of IVA in the large-scale virtual scene in this paper is to model and simulate navigational behavior of intelligent creatures or moving object in the real world.

本文对大范围虚拟场景中IVA自主导航的研究，本质上是对现实环境中智能生物或移动对象进行导航行为建模与仿真。

The OTSU algorithm （maximization of interclass variance） is considered as one of the superior threshold selection methods.But this method can not segment the path mark image successfully for our indigenous design and manufactured vision navigation intelligent vehicle under bright illumination.A new method based on regional Roberts gradient is proposed in order to solve this problem.

OTSU法被认为是图像分割中阈值自动选取的最优方法之一，针对自主开发的视觉导航区域交通智能车辆的导航路径在强光照条件下不能直接应用此方法取得准确分割效果的问题，提出了一种基于区域的罗伯特梯度算子的图像分割方法。

The result demonstrated that the distribution of elements in IPNs'surface and internality was maldistribution and varied with composition.

从导航的最底层可以看到与本文研究领域相同的文献，从上层导航可以浏览更多相关领域的文献。

With the breakthrough of aviation technology, international civil aviation organization put forward the communication, navigation and surveillance system based on performances. It is composed of required communication performance, required navigation performance and required surveillance performance.

随着航空技术的突破性进展，国际民航组织提出了基于性能的通信导航监视系统，其由所需通信性能、所需导航性能和所需监视性能组成。

In recent years, with the development of the micro-electronics technique, the price of GPS receiver have been greatly falling , and as a result of the United States closing SA to stop limiting the public position accuracy of GPS , the GPS positioning accuracy have improved greatly in public field. All this consumedly promote the development of GPS in public field, and especially in the vehicle navigation field , GPS shows its superiorly navigation performance.

近年来随着微电子技术的发展使得GPS接收机的价格大幅度下降，同时美国提前关闭SA停止对民间用户精度的限制使得GPS民用定位精度有了很大的提高，这大大促进了GPS在民用领域的发展，尤其是在车辆导航领域，GPS系统充分展示了它那优越的导航性能。

Firstly,subgoal choosing is optimized by using heuristic function according to the window's information,it is local environment's information,which is obtained by camera.Then navigation behavior is divided into GO TO TARGET behavior and OBSTACLE AVOIDANCE behavior,their behaviorial states and behaviorial modes dynamics models are established,and then one autonomous local path planning online is implemented using navigation behavior dynamics model in a single window.Connecting a series of local paths according to continuity,the robot accomplishes one global planning ultimately.

首先根据所获得的窗口信息，采用启发式函数进行局部子目标优化选择；然后将路径规划问题即导航行为分解为趋于目标行为和避障行为，并对这两种行为分别建立了行为状态和行为模式动力学模型；在此基础上，以窗口为单位，利用导航行为动力学模型进行在线自主路径规划；将一系列窗口中的规划轨迹按照连续性条件首尾相接，最终完成了一条全局规划任务。

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。