导航技术

The developments of GPS and integrated navigation technology provide solid basis for low cost IMU and GPS to integrate high performance navigation system.

GPS技术及其与惯导系统组合技术的发展，为低成本IMU和GPS组合成高性能的导航系统提供了坚实的技术基础。

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。

With the development of the technology of microelectronics, computer, space and mapping, VLS make a rapid progress.

微电子技术、计算机技术、空间技术及制图技术的发展使车载导航系统获得了飞速的发展。

In this paper,we analyze the key techniques for the service precision of Global Navigation Satellite System such as time reference,time synchronization,satellite orbit determination,etc.

对影响导航定位系统定位精度的各种因素进行了分析。研究了影响导航定位精度的关键技术问题，如时间基准、时间同步和卫星定轨等。

GPS has been widely adapted as the main positioning tool nowadays after development for more than 20 years with a new generation updating. The applications of areas and prospects dimension of GPS have exceeded its original purpose. It has become a very important technical method and solution way in almost every field of transportation, communication, metrology, aerologic and so on.

全球定位系统GPS作为新一代的卫星导航定位系统，经过二十多年的发展，已发展成为一种被广泛采用的系统，它的应用领域和应用前景已远远超出了该系统设计者当初的设想，目前，它在航空、航天、军事、交通、运输、源勘探、通信、气象等几乎所有的领域中，都被作为一项非常重要的技术手段和方法，用来进行导航、定时、定位、地球物理参数测定和大气物理参数测定等。

This paper mainly narrates the design and study of vehicle navigation function. And it studies the realization and idea of several key techniques in the system, includes map circumrotation, navigation position calculation etc.

随后论文提出了车载导航系统中基本功能的设计思想，并研究了几种关键技术的实现方法，其中包括：地图的旋转，导航推位，内存绘图等。

And then illustrates the key technology of MES supporting REM,such as the technology of scheduling and dynamitic rescheduling supporting REM,the whole lifecycle materiel management and application integration on resources platform;the technique of automatic navigation and drive in manufacturing on workflow.

介绍了制造执行系统实施的三个关键技术：支持快速扩散制造的生产计划与动态调度技术；基于资源平台的物料全生命周期管理及应用集成技术；基于工作流的制造过程自动导航与驱动技术。

So, the study in this dissertation focuses on some key points in theuncertainty treatment of mobile robot localization as follows: Combined with the multiple proprioceptive and exteroceptive sensors ofmobile robot MORCS-1, aimed at the drift error of fiber optic gyro as theproprioceptive sensor, the neural network using genetic algorithm as optimaltool is proposed to accomplish the modeling and calibration for temperaturedrift of fiber optic gyro, which can reduce the drift error to the standard outputat constant temperature; and aimed at the noisy disturbance of ranging datafrom the exteroceptive sensor laser scanner, a dynamic adaptive filter isintroduced through the analysis of neighboring ranging data in time and spatialcorrelation to realize the real-time and dynamic filter, which can validly filter the noisy disturbance to meet the requirement of the accurately real-timeobstacle detection in mobile robot navigation.

总结全文，在移动机器人定位的不确定性处理研究中，提出了一些具有一定创新性的方法：结合自行研制的移动机器人MORCS-1系统的多种内外部定位传感器，针对内部本体感受传感器光纤陀螺仪的漂移误差，提出采用基于遗传算法优化的神经网络来对光纤陀螺仪的温漂建模及校准，能够将其温漂变化控制在恒温条件下标准测试输出附近；针对外部环境感知传感器激光雷达测距数据中包含的噪声干扰，考虑移动机器人导航中激光雷达测距数据的时空关联性，提出采用动态自适应滤波技术进行预处理，从而可以有效滤除噪声干扰满足导航中障碍实时精确检测的要求。

In well-branded products do a good job market, based on the Shenzhen-based high-tech fields in a national leader of the advantages of integrating the upstream technical resources to develop their own intellectual property rights of their own brands "Tomora" GPS navigation products are now covered by our Shenzhen, Shenyang, Beijing, Zhengzhou, Jinan, Chengdu, Suzhou, Hangzhou, Changsha and other cities in retail outlets is almost 300 terminals, the company is to "the largest national professional navigation market distributors," the goal.

在精心做好品牌产品市场的基础上，立足深圳处于全国高新技术领域龙头地位的优势，整合上游技术资源，开发出拥有自主知识产权的自主品牌&Tomora&GPS导航系列产品，现我司覆盖的深圳、沈阳、北京、郑州、济南、成都、苏州、杭州、长沙等城市的零售终端网点已近三百个，公司正在向&全国专业导航市场最大分销商&的目标迈进。

Main courses: satellite geodesy, error theory and data processing, physical geodesy, space geodetic techniques and applications, imaging and mapping, navigation, celestial mechanics, photogrammetry, digital image processing, pattern recognition, radio communications and navigation , digital and analog circuits, such as optimal control.

主要课程：卫星大地测量学、误差理论与数据处理、物理大地测量、空间测地技术及应用、影像与制图、组合导航、天体力学、摄影测量学、数字图像处理、模式识别、无线电通讯与导航、数字与模拟电路、最优控制等。

Chrysanthemum of 10 thousand birthday is lax to edaphic requirement, with the arenaceous qualitative loam with fecund, good drainage had better.

万寿菊对土壤要求不严，以肥沃。排水良好的砂质壤土为好。

He unstepped the mast and furled the sail and tied it.

他拔下桅杆，把帆卷起，系住。