全球定位系统

GPS Locator: for figuring out where you are and where you should go.

全球定位系统定位：搞清楚你身在何处，而你应该去。

Then, based on the observability of SINS/GPS integrated system it has been concluded that the observability of the attitude errors of the integrated system is very poor, and the nonsingular condition of the obervability matrix has been given by means of the theoretical analysis.

首先建立起捷联惯导系统与全球定位系统相组合系统的数学模型，从研究SINS／GPS组合系统的可观测性出发，通过理论分析得出了组合系统姿态角误差可观测性很差的结论，并给出使可观测阵满秩的条件。

He said it is likely to be equipped with an integrated inertial navigation system/Global Positioning System, supplemented by a terrain contour mapping system and digital scene-matching terminal-homing system able to provide a circular error probable of 10m.

一名美国情报部门的人员指出，DH-10是一种二代地基发射的对地巡航导弹，它的射程超过1500KM。可能装备了惯性导航系统和全球定位系统。另外装备了地面轮廓映象系统，数码目标对比和末端自动引导系统。它的精确度达到了10米。

The GIS system is not only an electronic map, the map basic operation, layer management and other functions, also uses the Global Positioning System to obtain the coordinates of sampling points and real-time display and navigation on the maps.

该系统不仅具有GIS的电子地图显示、地图基本操作、图层管理等功能，还利用全球定位系统来获取采样点的定位坐标，并能在地图上实时显示和导航。

Combining the Global Positioning System and Geographic Information System in rail traffic, which could increase positioning precision, reduce trackside equipment, decrease the cost of construction and maintenance, has become a development direction in Train Control System.

将全球定位系统和地理信息系统结合在一起应用于轨道交通中，可以提高列车定位精度、减少轨旁设备、降低建设和维护成本，这已经成为列车运行控制系统的一个发展方向。

China has also been reportedly seeking to further improve the accuracy of the DongFeng 15 missile by integrating it with the global positioning system or a similar indigenously-developed satellite-based navigation and positing system.

中国也已经根据传闻寻求进一步改进DF-15导弹的精度，综合采用全球定位系统或一个类似的本国自行发展卫星-基导航和定位系统。

By combining a case analysis and experiences and lessons from the fire prevention work, the author put forward the development direction and the key improvement of forest fire prevention technology as follows: keep on the studies on weather and situation of forest fire and the short-term, medium-term and long-term fire forecasting, establishing the countrywide forest fire forecasting system step by step, enhancing the biologic fire prevention construction based on forest- prevention web and system, improving the ability of the initial fire obstruction, expanding the forest fire plan, strengthening the management of combustible substances, completing the national satellite network for forest-fire monitoring as soon as possible, speeding up the construction of computer assistance decision system, GIS forest resources geography information system and the GPS world fixed position system, strengthening the fire prevention communication and the extinguishing fire with aviation airplane and chemistry, implementing the modernization of fire machine tool.

结合实例分析及我国森林防火工作的经验和教训，提出了未来我国森林防火技术的发展方向和改进重点：继续努力开展火险天气、火险形势的科学研究和短期、中长期火险预测预报工作，逐步建立全国林火预报系统；加强以防火林带网络和体系建设为主的生物防火建设，提高对初发火的阻隔能力；推广计划火烧，加强可燃物管理；尽快完成全国卫星林火监测网络建设；加快微机辅助决策系统、GIS森林资源地理信息系统和GPS全球定位系统建设的步伐；加强防火通讯；加强航空飞机灭火和化学灭火的力度；实现扑火机具现代化等。

In order to solve the heavy workload and the low efficiency of the train maneuver, one kind of train security alarm system based on GPS and INS technique was presented. The Kalman filter used in the information fusion of GPS and ISN was analyzed, solving the problem of the infinite position error of an INS and the slow modification rate of a GPS. By using the original train database to correct the mileage, the precision of the system was improved.

为了弥补目前火车车辆运行中人工统计调度工作量大、效率低等缺陷，提出了一种基于全球定位系统和惯性导航技术的火车安全告警系统的设计方案；重点讨论了GPS/INS在信息融合时所使用的卡尔曼滤波方法，避免了独立的惯性导航系统无限位置误差和GPS的1 Hz慢速数据修正的问题；利用原有国家铁路网数据库进行数据修正，进一步提高了系统的精度。

With the rapid development of the Global Position System in the world, particularly in the mobile phone business, higher and higher performance has been put forward, not only circular polarization, but also their appearance and system integration requirements, especially in the research on miniaturization.

随着全球定位系统在全球的快速发展，特别是在手机业务中的使用，使得对GPS天线要求越来越高，不仅要满足其圆极化的特性，对其外观及与系统集成度方面的要求也进一步增多，特别是在小型化的研究上，除此之外，还要求降低其成本，才是其能广泛推广的关键。

In order to resolve the problem of the acquirement, management, and analysis for data, and making intelligent decision support in PA, the system is integrated with Global Position System, Geographic Information System, Expert System and Decision Support System.

为了解决精准农业中信息的获取、管理、分析和专家智能决策生成问题，研究并集成了精准农业中的关键技术——全球定位系统、地理信息系统、专家系统和决策支持系统。

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。