英语翻译经济上,卫星导航定位系统对我国经济的拉动可以主要体现在以下几个方面：1）车辆导航.我国人口众多,GDP持续增长,

英语翻译
经济上,卫星导航定位系统对我国经济的拉动可以主要体现在以下几个方面：1）车辆导航.我国人口众多,GDP持续增长,汽车拥有量也不断提升.如果1%的家庭买车,全国将会有大约三百万辆车.一辆车装备卫星定位系统接收机的费用暂定为一万元,这个市场将会有300亿!基于全球卫星定位系统的车辆导航也是组成智能交通系统（ITS）的重要部分,它世界上公认的从根本上解决交通问题的最有效途径.2）移动电话.将卫星导航定位技术与移动电话相结合,可以提供一种基于位置的服务（LBS）.中国手机用户增长率非常快,手机拥有量已经排名世界第二,在这个巨大的市场上,蕴藏着无限的商机.3）卫星导航系统在资源调查、物理勘探、石油钻探、农业、林业、渔业等领域大有市场.4）在体育,娱乐,探险和救生方面也大有用武之地.
我国在导航应用产业领域具有很大的市场,目前已显示出了巨大的经济效益.在导航方面,我国的大量的船只,飞机具有很大的市场份额.我国车辆数目庞大,发展势头强劲,而我国的交通基础设施相对落后,这就造成了对导航的一个更为迫切的需求,这方面的市场潜力不可估量.在定位方面,目前在测绘领域已基本大部分在利用GPS进行常规的测量和工程建设.在其他的应用方面,比如资源勘探、气象预报等许多应用行业都已经采用了GPS系统,有的是GPS与GLONASS系统的集成.
我国发展卫星导航事业的话,将会在国内形成和推动许多相关产业的发展.分析产业价值链：卫星导航的产业链基本构成有空间段、地面段和应用段.其中空间段属于一次性投资,地面段大部分也属于一次性投资,二者构成建设期的固定资产投资；而应用段的功能是产品（和服务）制造,是可持续增长的利润来源阶段.它可以对卫星制造产业和很多相关硬件产业的在经济上和技术上带来很大的发展.在积累了相当的经验,和具有了一定的技术实力后,我国在这方面就可以参与国际竞争,推动我国卫星制造产业的大力发展.
2． 在已有的基础上发展,降低系统技术开发成本
我国的导航事业发展了很多年,已经积累了大量的地面基础设施,经过适当改造,可以利用它们为我国即将发展得卫星导航系统服务.我国的地面基础设施主要包括：“北斗一号”系统的地面中心控制站和参考站、GPS跟踪站、刚完成的广域差分增强系统、以及人卫激光观测站等.
“北斗一号”是我国正在独立自主设计与建设的一种全天侯、区域性的卫星定位系统.“北斗一号”系统的地面控制中心站可扩建为新一代导航系统的地面控制中心站.利用它对卫星进行监控与管理,处理卫星调度、维持和补充等,根据其他监测站所传送的观测资料,推算编制各卫星的星历、卫星钟差和大气层的修正参数,并将这些数据通过其他的地面站上行到卫星.

On the economy, satellite navigation and positioning system to our country economy can pull mainly embodied in the following aspects: 1) vehicle navigation. China's population is numerous, GDP growth, car ownership is also constantly ascension. If 1% of the family a car, and the national there will be about three million vehicles. A car equipment satellite positioning system is the cost of the receiver is ten thousand yuan, the market will have 30 billion! Based on the global positioning system composed of vehicle navigation is intelligent transportation system (ITS), it an important part of the world recognized from go up at all solve traffic problems of the most effective way. 2) mobile phone. The satellite navigation and positioning technology and mobile phone combined, can provide a location based services (paper). China mobile phone user growth rate is very fast and mobile phones has been ranked in the second, in this huge market, containing the unlimited business opportunities. 3) satellite navigation system in resources investigation, geophysical exploration, oil drilling, agriculture, forestry, fishery, etc have the market. 4) in sports, entertainment, exploration and life saving is also useful.
Our country in the navigation application industry has great market, has now show that the huge economic benefits. In the navigation, Chinese large amounts of ships, aircraft has a large market share. Vehicle number in China big, strong momentum, but in China the transportation infrastructure is relatively backward, this has caused the navigation of a more pressing needs, the market potential is immense. In locating, currently in surveying and mapping field has basic most of the routine of using GPS measurement and project construction. In other applications, such as resource exploration, weather forecast and many other applications industries have used the GPS system, have a plenty of GPS and GLONASS integration.
Satellite navigation career development in our country, it will in China to create and promote the development of many related industry. Analysis of the value chain: the basic composition of the satellite navigation industrial chain has a space segments, the ground segment and for application. Among them for space belongs to one-time investment, for most of the ground also belong to one-time investment, both of the construction period of a fixed asset investment; And the use of the function of the period is the product (service) and made, it is sustainable growth of the profit source stage. It can manufacture industry and a lot of the satellite related hardware industry in the economy and technology development of a lot. Has accumulated in the experience, and with a certain technical strength, our country in this respect we can participate in the international competition, promoting China's manufacturing industry to develop the satellite.
2. On the basis of the existing development, reduce the system technology development costs
China's navigation for many years, career development has accumulated the massive ground infrastructure after appropriate transformation, can use of them for our country is to develop satellite navigation system service. The ground of the infrastructure in China mainly include: "no. 1" the big dipper system ground control station and reference center station, GPS tracking station, just completed the wide-area difference enhance the system, and satellite laser observatory, etc.
"No. 1" is China's big dipper is independent design and the construction of a kind of all weather, regional satellite positioning system. "No. 1" big dipper ground control center of the system can be expanded to a new generation of navigation system ground control center. Use it to satellite monitoring and management, processing, maintenance and supplement satellite scheduling, according to other stations transmit the observation data of the satellite, calculated the star calendar, clock, and less of the satellite atmosphere correction parameter, and these data through the other sites that goes up to the satellite.