导航

Usually, there are three available accesses for location underwater, inertial navigation, dead reckoning navigation, acoustic tracking location.

从目前来看，应用于水下导航的方法主要有：惯性导航、船位推算导航、水声定位系统等方法。

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广州市国通汽车有限公司，创立于1994年，座落于交通便利、环境优美的广州市番禺区，占地面积近55000平方米，精英汇集，技术力量雄厚，是专业研发、生产和销售车载和便携GPS/DVD全球卫星定位导航多媒体影音系统、汽车电子智能控制系统等电子产品的高科技企业，旗下拥有"Forman大众领航"品牌，在汽车导航影音系统以及便携式汽车导航产品等领域引领着行业的前沿，国通优质的汽车电子产品在汽车售后市场、海外出口和整车配套三大块市场均取得了长足的发展。

Aiming at shadow influence problem in vision navigation process of agricultural robot, illumination invariant image based on shadow removal algorithm was introduced. An enhanced OSTU image segmentation method was used, and an optimized Hough transformation algorithm was used to extract crop line, and coordinate transform was applied to obtain navigation parameters.

该研究针对农业机器人视觉导航中存在的阴影干扰问题，采用基于光照无关图的方法去除导航图像中的阴影，然后采用增强的最大类间方差法进行图像分割和优化的Hough变换提取作物行中心线，最终通过坐标转换获得导航参数。

However, keywords can only represent the simple content, which easily dissever the relevancy of the content The deep-content representation and application are not developed, so semantic navigation is not satisfied at present. Time mechanism is a kind of navigation mechanisms that uses time for the signpost, and determines navigation route according to the time of occurrence.

时序机制指以时间为导航路标、根据事物发生的时间顺序确定访问路径的一种导航机制，主要应用于WWW信息空间中以时问顺序为线索组织信息的结构中；空间机制指依据对象间的空间关联，为用户指引路径，提供导航路标的机制，应用于具有空间特征的结构中；社会机制指利用先行者的经验、建议为后来者指引路径的行为，原来主要应用在推荐系统、协作系统中，目前已经在主流的信息检索系统中得到了应用，如在CNKl知识网络服务平台（CNS 5.0）中的应用。

In this paper, on-line detection of random drift of angular displacement and velocity for gyro servo turntable has been developed by using inertial vibration displacement and velocty transducers.

1引言 目前，惯性导航技术已广泛地应用于航天、航空和潜艇导航中。在惯性导航系统中，对精密昂贵平台角位移和角速度漂移的实时在线测试要求比较高。

With the development of warship navigation system, the demand of system is becoming more and more exigent.

随着舰船导航系统的不断发展，用户对导航系统的要求不断提高，传统的串口通讯方式已经不能满足设备信息传输的需求，传统通讯方式自身的缺陷严重制约了导航系统的发展。

Recently the theories and methods of fountainless navigation using earth physical characters have been noticed by research institutions and scholars of all the world.

近年来，利用地球物理特征的无源导航理论和方法引起了国内外研究机构和学者的注意，开展了地形匹配导航技术、重力辅助导航技术、地磁辅助导航技术等研究。

Recently the theories and methods of fountainless navigation using earth physical characters have been noticed by research institutions and scholars of all the world. Researches on terrain matching navigation, gravity assistant navigation and geomagnetism assistant navigation have been developed.

近年来，利用地球物理特征的无源导航理论和方法引起了国内外研究机构和学者的注意，开展了地形匹配导航技术、重力辅助导航技术、地磁辅助导航技术等研究。

Navigation of 3375.net individual character next the article that I look for to including individual character navigation one piece casually, next I am used to the individual character navigation inside [navigation of Url=http:// Www.3375.net] individual character undertakes replacing.

net个性导航然后我就随便找一篇包含着个性导航的文章，然后我对里面的个性导航用[url=http：// www.3375.net]个性导航进行替换。

The error of inertial navigation systems is cumulated in course of time because of the drift of the measurement unit-gyroscope. Using the celestial navigation system and the information processing technology, the paper disscusses the INS/CNS integrated navigation systems.

惯性导航系统由于其感测元件—陀螺仪的漂移造成导航系统误差随时间不断累积，本文利用天文导航系统，结合信息处理技术，探讨了惯性/天文组合导航系统的相关问题。

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。