什么是地基GPS？追加分？一文讲清

地基GPS（Ground Based GPS）是利用接收GPS卫星定位信息，跟踪和求精定位任务的系统，我们称之为地基GPS。我们可以把它理解成GPS传感器把一个站点定在空间上，它传输的数据可以帮助地理定位，地形图，测绘应用以及定位等领域有帮助。



一、定位特性

地基GPS是用幅射波和传输接收信号的方式，通过它可以完成GPS定位，采集，存储和发现实时信息，可以在各种地形，环境下完成定位任务，可以在任意的路程完成详细的定位，但是它的定位能力受到地形，树木，天空及其它周围环境的影响。

二、简易操作界面

地基GPS采用了一个简易的操作界面，易于使用，可完成即时定位，避免了传统测量情况下因计算机和办公软件而带来的时间损失，地基GPS不需要进行计算，用户可以通过显示屏直观地看到实时测量数据，操作界面直观友好，大大提高定位任务的效率。

三、低成本

地基GPS的采购成本比传统的GPS来的低，而且也有更灵活的配置，可以根据用户需求选择不同的组件，比如定位技术，定位组件，高精度接收机，天线，跟踪卫星等，每个组件都在各自的领域里有着极高的性价比，可以为用户省下很多定位任务投入的成本。

四、完善的系统

地基GPS的系统比较完善，外设和软件都很丰富，其中可以增加一些附加功能如定位，定向，测量，传感器和数据分析等，增加部分外设的可以更好的增加GPS的定位精度，并且GPS系统中的扩展模块也可以增加定位任务灵活性。

总的来说，当提到地基GPS时，考虑它的定位特性，简易操作界面，低成本和完善的系统，这些都为GPS定位任务提供了很多帮助，提高了定位效率，使定位任务变得更加容易和准确。

《What is Ground-based GPS? From Different Perspectives》

Global Positioning System (GPS) has become the main positioning technology applied in modern navigation system, which can be classified into two major categories: ground-based GPS and space-based GPS based on the deployment environment. As this essay will focus on ground-based GPS, it will try to provide a comprehensive and in-depth explanation for the aspects of its definition, overlapping coverage and applications.

To start with, ground-based GPS is a terrestrial GPS system which can be located near the ground surface and thus provides localized auxiliary information reference points, given the constrains of distance constraint, terrain mask and so on, to improve the accuracy of positioning measurement. Generally speaking, it is constructed with a three-dimensional stationary station array and can emit radio signals to the specific area of a region.

In addition, the overlapping coverage of ground-based GPS can be divided into two major types, namely wide-area network (WAN) coverage and local-area network (LAN) coverage, which has been extensively used to aid in the positioning accuracy of space-based GPS in some mission-critical industries such as aviation and transport. WAN coverage is mainly deployed in the regional area and can provide regionalized, regionalized and regionalized positioning services with good accuracy. In comparison, LAN coverage, which focuses on the small-scale region and mainly provides local positioning services, has the characteristic of more precise and fast with less coverage of the station array.

Furthermore, the applications of ground-based GPS, essentially the optimizer of space-based GPS, are numerous and substantial. For example, it offers advanced navigation solutions such as lane-level tracking, which allows positioning accuracy of down to one metre, and can be applied in various fields such as intelligent transportation in urban areas and location-based service (LBS) in tourism industry. Besides, in the parts of precision agriculture and precise power grid network optimization, it can improve the accuracy of the whole system, thus ensure the precise control of the related equipment. In addition, it can also be used in the precise operation of robot navigation, helping robotics to realize autonomous navigation in the indoor environment.

To conclude, ground-based GPS, as a supplementary and improved application of space-based GPS, have made tremendous contributions to the improvement of positioning accuracy and the promotion of intelligent navigation, which can be applied in the wide-areas of industrial field and life scenes. With the continuous improvement of network technologies and the advances of related research, more and more applications of ground-based GPS will be seen in the near future.